Soudaseal 250XF - Extra Fast Hybrid Sealant & Adhesive

Soudaseal 250XF is a high modulus hybrid polymer sealant and adhesive, designed for applications requiring enhanced mechanical properties and rapid strength development.

Soudaseal 250XF provides exceptional bond strength on almost all surfaces, including damp ones, and ensures no bubble formation even in high temperatures or humid conditions. The product is easy to tool and extrudes well, even at low temperatures.

Soudaseal 250XF is weather and UV resistant, free from isocyanates, solvents, halogens, and acids, and can be painted with water-based paints. Its inclusion of fungicides makes it suitable for sanitary applications.

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Sale price £6.25 Regular price
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Soudaseal 250XF is a high modulus hybrid polymer sealant and adhesive, designed for applications requiring enhanced mechanical properties and rapid strength development.

Soudaseal 250XF provides exceptional bond strength on almost all surfaces, including damp ones, and ensures no bubble formation even in high temperatures or humid conditions. The product is easy to tool and extrudes well, even at low temperatures.

Soudaseal 250XF is weather and UV resistant, free from isocyanates, solvents, halogens, and acids, and can be painted with water-based paints. Its inclusion of fungicides makes it suitable for sanitary applications.

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Key Features of Soudaseal 250XF

✔️ High initial tack reduces the need for temporary supports, enhancing workflow efficiency.

✔️ Extra fast strength build-up allows for quick handling, shortening project timelines significantly.

✔️ Versatile adhesion on various surfaces, including damp substrates, ensures reliable performance.

✔️ Environmentally safe with low VOC emissions, free from isocyanates, solvents, halogens, and acids.

✔️ Mould-resistant with XS1 fungicide, making it ideal for high-humidity areas like bathrooms and kitchens.

 

Full Product Description

Soudaseal 250XF represents a significant advancement in hybrid polymer sealant and adhesive technology. This high modulus product is engineered to offer superior mechanical properties, making it ideal for demanding applications where both flexibility and strength are required. One of its standout features is the extra fast strength build-up, which facilitates quick handling and shortens project timelines.

The formulation of Soudaseal 250XF ensures outstanding bond strength on nearly all surfaces, whether they are dry or slightly damp. This versatility allows it to be used in a wide range of environments and applications. Additionally, the product does not form bubbles, even when applied in high temperatures or humid conditions, which is a common challenge with other sealants and adhesives.

Tooling Soudaseal 250XF is effortless, thanks to its excellent extrudability. It can be applied smoothly even at low temperatures, maintaining a consistent flow and ease of use. The cured sealant is durable, retaining its elasticity and performance over time. It conforms to ISO 11600 F 20 HM standards, ensuring high quality and reliability.

This hybrid polymer sealant and adhesive is free of isocyanates, solvents, halogens, and acids, making it environmentally friendly and safe to use in various settings, including indoor environments. It emits very low levels of volatile organic compounds (VOCs), earning the EC1 PLUS R certification for low emissions. This makes it suitable for use in environmentally sensitive projects and ensures compliance with stringent environmental regulations.

Soudaseal 250XF contains XS1 fungicide, providing resistance to mould growth. This property is particularly beneficial in sanitary applications such as bathrooms and kitchens, where high humidity levels can promote mould development. The product can also be painted with all water-based paints, allowing for seamless integration into various finishing processes.

In terms of performance, Soudaseal 250XF demonstrates impressive specifications. It forms a skin in approximately 5 minutes at 23°C and 50% relative humidity and cures at a rate of 3 mm per 24 hours under the same conditions. The product has a maximum tension of 3.00 N/mm², an elasticity modulus at 100% of 1.60 N/mm², and an elongation at break of 500%. It can withstand temperature extremes from -40°C to 90°C, making it suitable for both indoor and outdoor applications.

 

Product Benefits

  • High Initial Tack: Soudaseal 250XF offers exceptional initial grab, reducing the need for temporary supports during the bonding process. This feature accelerates the workflow and enhances efficiency.

  • Extra Fast Strength Build-Up: The product cures quickly, achieving significant strength in a short time. This rapid development allows for faster handling and reduces project timelines.

  • Versatile Adhesion: Capable of adhering to a wide variety of surfaces, including damp substrates, Soudaseal 250XF provides reliable performance in diverse applications.

  • Environmentally Safe: Free from isocyanates, solvents, halogens, and acids, this product is safe for use in various environments. Its low VOC emissions meet EC1 PLUS R standards, contributing to better indoor air quality.

  • User-Friendly Application: The product’s good extrudability and easy tooling properties ensure a smooth application process, even at low temperatures. This makes it practical and efficient for various conditions.

  • Weather and UV Resistant: Soudaseal 250XF maintains its performance under harsh weather conditions and prolonged UV exposure, making it ideal for outdoor applications.

  • Sanitary Applications: The inclusion of XS1 fungicide makes the product resistant to mould growth, suitable for use in high-humidity areas such as bathrooms and kitchens.

  • Paintable: The sealant can be overpainted with all water-based paints, enabling seamless finishing and aesthetic integration into various projects.

 

Typical Applications:

  • Construction and Building Industry: Ideal for sealing and bonding tasks, including the installation of panels, profiles, and other construction materials. Its high initial tack and strong bond strength make it suitable for heavy-duty applications.

  • Metalworking Industry: Provides strong elastic bonding for metalworking applications, ensuring reliable adhesion even on slightly moist surfaces. It is suitable for bonding metal panels, profiles, and other metal components.

  • Automotive Industry: Perfect for elastic structural bonding in the automotive sector, including buses, trains, trucks, caravans, and trailers. Its flexibility accommodates vibrations and thermal expansion, ensuring durable bonds.

  • Sanitary Applications: Suitable for sealing joints in bathrooms and kitchens, preventing mould growth and maintaining hygiene in high-humidity areas.

  • Industrial Bonding: Ideal for various industrial applications, including the bonding of insulation panels and PVC cable trays. Its high initial tack and strong bond strength ensure reliable performance in demanding environments.

  • Vibrating Constructions: Suitable for structural bonding in constructions subject to vibrations, ensuring a secure and flexible bond that accommodates dynamic stresses.

  • Outdoor Sealing and Bonding: Resistant to weather and UV exposure, making it perfect for sealing and bonding tasks in outdoor environments where durability and resistance to the elements are crucial.

  • General Bonding and Sealing: Versatile enough for all common bonding applications, both indoor and outdoor, ensuring reliable performance across various projects.

Soudaseal 250XF is an excellent choice for professionals seeking a high-performance, versatile sealant-adhesive that meets the rigorous demands of modern construction and manufacturing projects. Its superior initial grab, strong final bond strength, and user-friendly properties make it an indispensable tool for a wide range of applications.

Substrate Suitability:

Soudaseal 250XF is versatile and suitable for bonding and sealing on a wide range of building substrates, including treated wood, PVC, various plastics, and metals such as AlCuMg1, AlMg3, AlMgSi1, stainless steel, electro-galvanized steel, steel ST1403, and hot-dip galvanized steel.

The substrates should be rigid, clean, dry, and free of dust and grease. The product also adheres well to plastics like polystyrene, polycarbonate (Makrolon®), PVC, polyamide, fibreglass-reinforced epoxy, and polyester. However, bonding plastics such as PMMA (Plexi® glass) and polycarbonate (Makrolon® or Lexan®) in stress-loaded applications can lead to stress cracking and crazing. Therefore, Soudaseal 250XF is not recommended for these applications.

It is also unsuitable for PE, PP, PTFE (e.g., Teflon®), bituminous substrates, copper, or copper-containing materials such as bronze and brass.

A preliminary adhesion and compatibility test on each surface is strongly recommended.

 

Surface Preparation:

Proper surface preparation is essential to achieve a strong and durable bond with Soudaseal 250XF.

Ensure all surfaces are clean, dry, and free from dust and grease. For porous surfaces, particularly in water-loaded applications, use Soudal Primer 150 to enhance adhesion.

Non-porous surfaces should be prepared using Soudal Surface Activator or Soudal Cleaner & Degreaser to remove any contaminants that could affect the bond. Plastics often contain releasing agents, processing aids, or protective agents (like protection foils) that must be removed prior to bonding or sealing.

For optimum adhesion, the use of Surface Activator is recommended.

 

Application Method:

To apply Soudaseal 250XF effectively, follow these steps:

  1. Preparing the Cartridge: Cut the nozzle of the cartridge at a 45-degree angle to the desired bead size. Insert the cartridge into a caulking gun.

  2. Applying the Adhesive: Apply the adhesive in uniform strips or dots, spaced approximately every 15 cm, on one of the substrates. Ensure to apply an adhesive dot or strip on the corners and edges of panels. When applying the adhesive, avoid creating a closed circumference; instead, opt for an interrupted pattern to allow for optimal bonding and curing.

  3. Bonding the Substrates: Press the surfaces firmly together immediately after applying the adhesive, ensuring full contact. Use a rubber hammer to tamp down the bonded substrate and ensure proper adhesion. If necessary, provide support to the bonded materials until the adhesive sets.

  4. Curing Time: The adhesive typically becomes hand-tight in about 20 minutes on absorbent and porous substrates with a thin adhesive layer and can be loaded after about 3 hours. Note that thicker adhesive layers or applications on non-absorbent substrates may extend the curing time. The optimal bond thickness for this product is at least 2 mm to allow the elastic properties to fully manifest.

 

Finishing:

After applying Soudaseal 250XF and bonding the substrates, ensure any excess adhesive is smoothed out before it begins to cure. The adhesive can be painted with water-based paints once it has cured. Due to the wide variety of paints and varnishes available, it is advisable to perform a compatibility test before application. Note that alkyd resin-based paints may have an increased drying time when applied over the adhesive.

 

Cleaning:

Immediate cleaning after use is advisable to prevent the adhesive from curing on tools and surfaces. Use Soudal Swipex Cleaning Wipes to remove any uncured adhesive residue. If the adhesive has already cured, mechanical removal will be necessary, and Soudal Sealant Remover can assist in this process. Follow the instructions provided with the cleaning products for effective removal.

 

Other Information:

Conduct a preliminary adhesion and compatibility test on every surface, especially plastics like PMMA (Plexi® glass) and polycarbonate (Makrolon® or Lexan®), as stress-loaded applications can cause stress cracking and crazing. Soudaseal 250XF is not recommended for these specific plastics under stress-loaded conditions.

The product is not suitable for bonding or sealing PE, PP, PTFE (e.g., Teflon®), bituminous substrates, copper, or copper-containing materials such as bronze and brass.

Soudaseal 250XF is free from isocyanates, solvents, halogens, and acids, making it environmentally friendly and safe for use in various environments. It emits very low levels of volatile organic compounds (VOCs) and complies with EC1 PLUS R certification for low emissions.

Soudaseal 250XF is not suitable for use as a glazing sealant, for bonding aquariums, or for applications involving continuous water immersion. The product may discolour under extreme conditions or prolonged UV exposure, but this does not affect its technical properties. Avoid contact with bitumen, tar, or other plasticiser-releasing materials such as EPDM, neoprene, and butyl to prevent discolouration and loss of adhesion. 

Soudaseal 250XF conforms to the requirements of LEED for low-emitting materials, including adhesives and sealants. It complies with SCAQMD rule 1168 and USGBC LEED 2009 Credit 4.1 regarding VOC content. It has good resistance to (salt) water, aliphatic solvents, hydrocarbons, ketones, esters, alcohols, diluted mineral acids, and alkalis, but poor resistance to aromatic solvents, concentrated acids, and chlorinated hydrocarbons.

Q) What is Soudaseal 250XF?

A) Soudaseal 250XF is a high modulus hybrid polymer sealant and adhesive designed for applications that require enhanced mechanical properties and rapid strength development. It offers exceptional bond strength on nearly all surfaces, even when damp, and ensures no bubble formation in high temperatures or humid conditions.

 

Q) What makes Soudaseal 250XF different from other sealants and adhesives?

A) Soudaseal 250XF stands out due to its extra fast strength build-up, high initial tack, and excellent adhesion to a variety of surfaces. It is also free from isocyanates, solvents, halogens, and acids, making it environmentally friendly and safe for various applications. Additionally, it contains fungicides, making it suitable for sanitary applications.

 

Q) On what surfaces can Soudaseal 250XF be used?

A) Soudaseal 250XF can be used on a wide range of substrates, including treated wood, PVC, various plastics, metals such as AlCuMg1, AlMg3, AlMgSi1, stainless steel, electro-galvanized steel, steel ST1403, and hot-dip galvanized steel. It adheres well to polystyrene, polycarbonate (Makrolon®), polyamide, fibreglass-reinforced epoxy, and polyester.

 

Q) How should surfaces be prepared before applying Soudaseal 250XF?

A) Ensure that all surfaces are clean, dry, and free from dust and grease. For porous surfaces, especially in water-loaded applications, use Soudal Primer 150. Non-porous surfaces should be prepared using Soudal Surface Activator or Soudal Cleaner & Degreaser. It is also important to remove any releasing agents or protective foils from plastic surfaces.

 

Q) Can Soudaseal 250XF be used on damp surfaces?

A) Yes, Soudaseal 250XF is designed to provide exceptional adhesion even on slightly damp surfaces, making it versatile and suitable for various environmental conditions.

 

Q) What is the curing time for Soudaseal 250XF?

A) Soudaseal 250XF forms a skin in approximately 5 minutes at 23°C and 50% relative humidity. It cures at a rate of 3 mm per 24 hours under the same conditions. The adhesive typically becomes hand-tight in about 20 minutes on absorbent and porous substrates with a thin adhesive layer and can be loaded after about 3 hours.

 

Q) Is Soudaseal 250XF paintable?

A) Yes, Soudaseal 250XF can be painted with all water-based paints. However, due to the wide variety of paints and varnishes available, it is advisable to perform a compatibility test before application. Note that alkyd resin-based paints may have an increased drying time when applied over the adhesive.

 

Q) Can Soudaseal 250XF be used for sanitary applications?

A) Yes, Soudaseal 250XF contains XS1 fungicide, making it resistant to mould growth and suitable for high-humidity areas such as bathrooms and kitchens.

 

Q) What are the environmental benefits of using Soudaseal 250XF?

A) Soudaseal 250XF is free from isocyanates, solvents, halogens, and acids, making it environmentally friendly. It emits very low levels of volatile organic compounds (VOCs), complying with EC1 PLUS R certification for low emissions and ensuring better indoor air quality.

 

Q) What is the maximum allowed distortion for Soudaseal 250XF?

A) The maximum allowed distortion for Soudaseal 250XF is ± 20%, making it suitable for applications where some movement or thermal expansion is expected.

 

Q) Is Soudaseal 250XF resistant to weather and UV exposure?

A) Yes, Soudaseal 250XF maintains its performance under harsh weather conditions and prolonged UV exposure, making it ideal for outdoor applications.

 

Q) How should Soudaseal 250XF be applied as an adhesive?

A) Apply the adhesive in uniform strips or dots, spaced approximately every 15 cm, on one of the substrates. Ensure to apply adhesive on the corners and edges of panels. Press the surfaces firmly together immediately after application and use a rubber hammer to ensure proper contact. Support the bonded materials if necessary until the adhesive sets.

 

Q) How should Soudaseal 250XF be applied as a sealant?

A) Ensure the joint surfaces are clean, dry, and free from dust and grease. Cut the nozzle of the cartridge at a 45-degree angle to match the width of the joint. Apply the sealant in a continuous, even motion, ensuring full coverage. Tool the sealant immediately after application using a suitable tool to achieve a smooth finish.

 

Q) What is the optimal bond thickness for Soudaseal 250XF

A) The optimal bond thickness for Soudaseal 250XF is at least 2 mm to allow the elastic properties to fully manifest and ensure a strong and durable bond.

 

Q) How can I clean tools and surfaces after using Soudaseal 250XF?

A) Immediate cleaning after use is advisable. Use Soudal Swipex Cleaning Wipes to remove any uncured adhesive residue. If the adhesive has already cured, mechanical removal will be necessary, and Soudal Sealant Remover can assist in this process.

 

Q) Can Soudaseal 250XF be used on natural stone?

A) Yes, Soudaseal 250XF can be used for bonding natural stone. However, it cannot be used as a joint sealant on natural stone surfaces. It is suitable for bonding on the bottom of natural stone tiles.

 

Q) Is Soudaseal 250XF suitable for glazing applications?

A) No, Soudaseal 250XF is not suitable for use as a glazing sealant.

 

Q) Can Soudaseal 250XF be used for bonding aquariums?

A) No, Soudaseal 250XF is not suitable for bonding aquariums or for applications involving continuous water immersion.

 

Q) What are the temperature limits for Soudaseal 250XF?

A) Soudaseal 250XF can withstand temperature extremes from -40°C to 90°C, making it suitable for both indoor and outdoor applications.

 

Q) How does Soudaseal 250XF perform under UV exposure?

A) Soudaseal 250XF may discolour under extreme conditions or prolonged UV exposure, but this does not affect its technical properties.

 

Q) What are the resistance properties of Soudaseal 250XF?

A) Soudaseal 250XF has good resistance to (salt) water, aliphatic solvents, hydrocarbons, ketones, esters, alcohols, diluted mineral acids, and alkalis. It has poor resistance to aromatic solvents, concentrated acids, and chlorinated hydrocarbons.

 

Q) What should be avoided when using Soudaseal 250XF?

A) Avoid contact with bitumen, tar, or other plasticiser-releasing materials such as EPDM, neoprene, and butyl, as this can cause discolouration and loss of adhesion. Also, do not use Soudaseal 250XF on PE, PP, PTFE (e.g., Teflon®), bituminous substrates, copper, or copper-containing materials such as bronze and brass.

 

Q) How should different reactive joint sealants be used with Soudaseal 250XF?

A) When using different reactive joint sealants, ensure that the first joint sealant is completely hardened before applying the next one to avoid any compatibility issues.

 

Q) Is Soudaseal 250XF compliant with environmental regulations?

A) Yes, Soudaseal 250XF conforms to the requirements of LEED for low-emitting materials, including adhesives and sealants. It complies with SCAQMD rule 1168 and USGBC LEED 2009 Credit 4.1 regarding VOC content.

 

Q) What is the skin formation time for Soudaseal 250XF?

A) The skin formation time for Soudaseal 250XF is approximately 5 minutes at 23°C and 50% relative humidity.

 

Q) What is the curing speed of Soudaseal 250XF?

A) Soudaseal 250XF cures at a speed of 3 mm per 24 hours at 23°C and 50% relative humidity.

 

Q) What is the maximum tension for Soudaseal 250XF?

A) The maximum tension for Soudaseal 250XF is 3.00 N/mm², making it a strong and durable adhesive for various applications.

 

Q) What is the elasticity modulus of Soudaseal 250XF at 100% elongation?

A) The elasticity modulus of Soudaseal 250XF at 100% elongation is 1.60 N/mm².

 

Q) What is the elongation at break for Soudaseal 250XF?

A) The elongation at break for Soudaseal 250XF is 500%, ensuring flexibility and durability in bonded joints.

 

Q) What is the density of Soudaseal 250XF?

A) The density of Soudaseal 250XF is approximately 1.47 g/ml, contributing to its robust mechanical properties and performance.

Technical Data Sheet

 

Declaration of Performance (DoP)

 

Safety Data Sheet

Coming Soon

Key Features of Soudaseal 250XF

✔️ High initial tack reduces the need for temporary supports, enhancing workflow efficiency.

✔️ Extra fast strength build-up allows for quick handling, shortening project timelines significantly.

✔️ Versatile adhesion on various surfaces, including damp substrates, ensures reliable performance.

✔️ Environmentally safe with low VOC emissions, free from isocyanates, solvents, halogens, and acids.

✔️ Mould-resistant with XS1 fungicide, making it ideal for high-humidity areas like bathrooms and kitchens.

 

Full Product Description

Soudaseal 250XF represents a significant advancement in hybrid polymer sealant and adhesive technology. This high modulus product is engineered to offer superior mechanical properties, making it ideal for demanding applications where both flexibility and strength are required. One of its standout features is the extra fast strength build-up, which facilitates quick handling and shortens project timelines.

The formulation of Soudaseal 250XF ensures outstanding bond strength on nearly all surfaces, whether they are dry or slightly damp. This versatility allows it to be used in a wide range of environments and applications. Additionally, the product does not form bubbles, even when applied in high temperatures or humid conditions, which is a common challenge with other sealants and adhesives.

Tooling Soudaseal 250XF is effortless, thanks to its excellent extrudability. It can be applied smoothly even at low temperatures, maintaining a consistent flow and ease of use. The cured sealant is durable, retaining its elasticity and performance over time. It conforms to ISO 11600 F 20 HM standards, ensuring high quality and reliability.

This hybrid polymer sealant and adhesive is free of isocyanates, solvents, halogens, and acids, making it environmentally friendly and safe to use in various settings, including indoor environments. It emits very low levels of volatile organic compounds (VOCs), earning the EC1 PLUS R certification for low emissions. This makes it suitable for use in environmentally sensitive projects and ensures compliance with stringent environmental regulations.

Soudaseal 250XF contains XS1 fungicide, providing resistance to mould growth. This property is particularly beneficial in sanitary applications such as bathrooms and kitchens, where high humidity levels can promote mould development. The product can also be painted with all water-based paints, allowing for seamless integration into various finishing processes.

In terms of performance, Soudaseal 250XF demonstrates impressive specifications. It forms a skin in approximately 5 minutes at 23°C and 50% relative humidity and cures at a rate of 3 mm per 24 hours under the same conditions. The product has a maximum tension of 3.00 N/mm², an elasticity modulus at 100% of 1.60 N/mm², and an elongation at break of 500%. It can withstand temperature extremes from -40°C to 90°C, making it suitable for both indoor and outdoor applications.

 

Product Benefits

  • High Initial Tack: Soudaseal 250XF offers exceptional initial grab, reducing the need for temporary supports during the bonding process. This feature accelerates the workflow and enhances efficiency.

  • Extra Fast Strength Build-Up: The product cures quickly, achieving significant strength in a short time. This rapid development allows for faster handling and reduces project timelines.

  • Versatile Adhesion: Capable of adhering to a wide variety of surfaces, including damp substrates, Soudaseal 250XF provides reliable performance in diverse applications.

  • Environmentally Safe: Free from isocyanates, solvents, halogens, and acids, this product is safe for use in various environments. Its low VOC emissions meet EC1 PLUS R standards, contributing to better indoor air quality.

  • User-Friendly Application: The product’s good extrudability and easy tooling properties ensure a smooth application process, even at low temperatures. This makes it practical and efficient for various conditions.

  • Weather and UV Resistant: Soudaseal 250XF maintains its performance under harsh weather conditions and prolonged UV exposure, making it ideal for outdoor applications.

  • Sanitary Applications: The inclusion of XS1 fungicide makes the product resistant to mould growth, suitable for use in high-humidity areas such as bathrooms and kitchens.

  • Paintable: The sealant can be overpainted with all water-based paints, enabling seamless finishing and aesthetic integration into various projects.

 

Typical Applications:

  • Construction and Building Industry: Ideal for sealing and bonding tasks, including the installation of panels, profiles, and other construction materials. Its high initial tack and strong bond strength make it suitable for heavy-duty applications.

  • Metalworking Industry: Provides strong elastic bonding for metalworking applications, ensuring reliable adhesion even on slightly moist surfaces. It is suitable for bonding metal panels, profiles, and other metal components.

  • Automotive Industry: Perfect for elastic structural bonding in the automotive sector, including buses, trains, trucks, caravans, and trailers. Its flexibility accommodates vibrations and thermal expansion, ensuring durable bonds.

  • Sanitary Applications: Suitable for sealing joints in bathrooms and kitchens, preventing mould growth and maintaining hygiene in high-humidity areas.

  • Industrial Bonding: Ideal for various industrial applications, including the bonding of insulation panels and PVC cable trays. Its high initial tack and strong bond strength ensure reliable performance in demanding environments.

  • Vibrating Constructions: Suitable for structural bonding in constructions subject to vibrations, ensuring a secure and flexible bond that accommodates dynamic stresses.

  • Outdoor Sealing and Bonding: Resistant to weather and UV exposure, making it perfect for sealing and bonding tasks in outdoor environments where durability and resistance to the elements are crucial.

  • General Bonding and Sealing: Versatile enough for all common bonding applications, both indoor and outdoor, ensuring reliable performance across various projects.

Soudaseal 250XF is an excellent choice for professionals seeking a high-performance, versatile sealant-adhesive that meets the rigorous demands of modern construction and manufacturing projects. Its superior initial grab, strong final bond strength, and user-friendly properties make it an indispensable tool for a wide range of applications.

Substrate Suitability:

Soudaseal 250XF is versatile and suitable for bonding and sealing on a wide range of building substrates, including treated wood, PVC, various plastics, and metals such as AlCuMg1, AlMg3, AlMgSi1, stainless steel, electro-galvanized steel, steel ST1403, and hot-dip galvanized steel.

The substrates should be rigid, clean, dry, and free of dust and grease. The product also adheres well to plastics like polystyrene, polycarbonate (Makrolon®), PVC, polyamide, fibreglass-reinforced epoxy, and polyester. However, bonding plastics such as PMMA (Plexi® glass) and polycarbonate (Makrolon® or Lexan®) in stress-loaded applications can lead to stress cracking and crazing. Therefore, Soudaseal 250XF is not recommended for these applications.

It is also unsuitable for PE, PP, PTFE (e.g., Teflon®), bituminous substrates, copper, or copper-containing materials such as bronze and brass.

A preliminary adhesion and compatibility test on each surface is strongly recommended.

 

Surface Preparation:

Proper surface preparation is essential to achieve a strong and durable bond with Soudaseal 250XF.

Ensure all surfaces are clean, dry, and free from dust and grease. For porous surfaces, particularly in water-loaded applications, use Soudal Primer 150 to enhance adhesion.

Non-porous surfaces should be prepared using Soudal Surface Activator or Soudal Cleaner & Degreaser to remove any contaminants that could affect the bond. Plastics often contain releasing agents, processing aids, or protective agents (like protection foils) that must be removed prior to bonding or sealing.

For optimum adhesion, the use of Surface Activator is recommended.

 

Application Method:

To apply Soudaseal 250XF effectively, follow these steps:

  1. Preparing the Cartridge: Cut the nozzle of the cartridge at a 45-degree angle to the desired bead size. Insert the cartridge into a caulking gun.

  2. Applying the Adhesive: Apply the adhesive in uniform strips or dots, spaced approximately every 15 cm, on one of the substrates. Ensure to apply an adhesive dot or strip on the corners and edges of panels. When applying the adhesive, avoid creating a closed circumference; instead, opt for an interrupted pattern to allow for optimal bonding and curing.

  3. Bonding the Substrates: Press the surfaces firmly together immediately after applying the adhesive, ensuring full contact. Use a rubber hammer to tamp down the bonded substrate and ensure proper adhesion. If necessary, provide support to the bonded materials until the adhesive sets.

  4. Curing Time: The adhesive typically becomes hand-tight in about 20 minutes on absorbent and porous substrates with a thin adhesive layer and can be loaded after about 3 hours. Note that thicker adhesive layers or applications on non-absorbent substrates may extend the curing time. The optimal bond thickness for this product is at least 2 mm to allow the elastic properties to fully manifest.

 

Finishing:

After applying Soudaseal 250XF and bonding the substrates, ensure any excess adhesive is smoothed out before it begins to cure. The adhesive can be painted with water-based paints once it has cured. Due to the wide variety of paints and varnishes available, it is advisable to perform a compatibility test before application. Note that alkyd resin-based paints may have an increased drying time when applied over the adhesive.

 

Cleaning:

Immediate cleaning after use is advisable to prevent the adhesive from curing on tools and surfaces. Use Soudal Swipex Cleaning Wipes to remove any uncured adhesive residue. If the adhesive has already cured, mechanical removal will be necessary, and Soudal Sealant Remover can assist in this process. Follow the instructions provided with the cleaning products for effective removal.

 

Other Information:

Conduct a preliminary adhesion and compatibility test on every surface, especially plastics like PMMA (Plexi® glass) and polycarbonate (Makrolon® or Lexan®), as stress-loaded applications can cause stress cracking and crazing. Soudaseal 250XF is not recommended for these specific plastics under stress-loaded conditions.

The product is not suitable for bonding or sealing PE, PP, PTFE (e.g., Teflon®), bituminous substrates, copper, or copper-containing materials such as bronze and brass.

Soudaseal 250XF is free from isocyanates, solvents, halogens, and acids, making it environmentally friendly and safe for use in various environments. It emits very low levels of volatile organic compounds (VOCs) and complies with EC1 PLUS R certification for low emissions.

Soudaseal 250XF is not suitable for use as a glazing sealant, for bonding aquariums, or for applications involving continuous water immersion. The product may discolour under extreme conditions or prolonged UV exposure, but this does not affect its technical properties. Avoid contact with bitumen, tar, or other plasticiser-releasing materials such as EPDM, neoprene, and butyl to prevent discolouration and loss of adhesion. 

Soudaseal 250XF conforms to the requirements of LEED for low-emitting materials, including adhesives and sealants. It complies with SCAQMD rule 1168 and USGBC LEED 2009 Credit 4.1 regarding VOC content. It has good resistance to (salt) water, aliphatic solvents, hydrocarbons, ketones, esters, alcohols, diluted mineral acids, and alkalis, but poor resistance to aromatic solvents, concentrated acids, and chlorinated hydrocarbons.

Q) What is Soudaseal 250XF?

A) Soudaseal 250XF is a high modulus hybrid polymer sealant and adhesive designed for applications that require enhanced mechanical properties and rapid strength development. It offers exceptional bond strength on nearly all surfaces, even when damp, and ensures no bubble formation in high temperatures or humid conditions.

 

Q) What makes Soudaseal 250XF different from other sealants and adhesives?

A) Soudaseal 250XF stands out due to its extra fast strength build-up, high initial tack, and excellent adhesion to a variety of surfaces. It is also free from isocyanates, solvents, halogens, and acids, making it environmentally friendly and safe for various applications. Additionally, it contains fungicides, making it suitable for sanitary applications.

 

Q) On what surfaces can Soudaseal 250XF be used?

A) Soudaseal 250XF can be used on a wide range of substrates, including treated wood, PVC, various plastics, metals such as AlCuMg1, AlMg3, AlMgSi1, stainless steel, electro-galvanized steel, steel ST1403, and hot-dip galvanized steel. It adheres well to polystyrene, polycarbonate (Makrolon®), polyamide, fibreglass-reinforced epoxy, and polyester.

 

Q) How should surfaces be prepared before applying Soudaseal 250XF?

A) Ensure that all surfaces are clean, dry, and free from dust and grease. For porous surfaces, especially in water-loaded applications, use Soudal Primer 150. Non-porous surfaces should be prepared using Soudal Surface Activator or Soudal Cleaner & Degreaser. It is also important to remove any releasing agents or protective foils from plastic surfaces.

 

Q) Can Soudaseal 250XF be used on damp surfaces?

A) Yes, Soudaseal 250XF is designed to provide exceptional adhesion even on slightly damp surfaces, making it versatile and suitable for various environmental conditions.

 

Q) What is the curing time for Soudaseal 250XF?

A) Soudaseal 250XF forms a skin in approximately 5 minutes at 23°C and 50% relative humidity. It cures at a rate of 3 mm per 24 hours under the same conditions. The adhesive typically becomes hand-tight in about 20 minutes on absorbent and porous substrates with a thin adhesive layer and can be loaded after about 3 hours.

 

Q) Is Soudaseal 250XF paintable?

A) Yes, Soudaseal 250XF can be painted with all water-based paints. However, due to the wide variety of paints and varnishes available, it is advisable to perform a compatibility test before application. Note that alkyd resin-based paints may have an increased drying time when applied over the adhesive.

 

Q) Can Soudaseal 250XF be used for sanitary applications?

A) Yes, Soudaseal 250XF contains XS1 fungicide, making it resistant to mould growth and suitable for high-humidity areas such as bathrooms and kitchens.

 

Q) What are the environmental benefits of using Soudaseal 250XF?

A) Soudaseal 250XF is free from isocyanates, solvents, halogens, and acids, making it environmentally friendly. It emits very low levels of volatile organic compounds (VOCs), complying with EC1 PLUS R certification for low emissions and ensuring better indoor air quality.

 

Q) What is the maximum allowed distortion for Soudaseal 250XF?

A) The maximum allowed distortion for Soudaseal 250XF is ± 20%, making it suitable for applications where some movement or thermal expansion is expected.

 

Q) Is Soudaseal 250XF resistant to weather and UV exposure?

A) Yes, Soudaseal 250XF maintains its performance under harsh weather conditions and prolonged UV exposure, making it ideal for outdoor applications.

 

Q) How should Soudaseal 250XF be applied as an adhesive?

A) Apply the adhesive in uniform strips or dots, spaced approximately every 15 cm, on one of the substrates. Ensure to apply adhesive on the corners and edges of panels. Press the surfaces firmly together immediately after application and use a rubber hammer to ensure proper contact. Support the bonded materials if necessary until the adhesive sets.

 

Q) How should Soudaseal 250XF be applied as a sealant?

A) Ensure the joint surfaces are clean, dry, and free from dust and grease. Cut the nozzle of the cartridge at a 45-degree angle to match the width of the joint. Apply the sealant in a continuous, even motion, ensuring full coverage. Tool the sealant immediately after application using a suitable tool to achieve a smooth finish.

 

Q) What is the optimal bond thickness for Soudaseal 250XF

A) The optimal bond thickness for Soudaseal 250XF is at least 2 mm to allow the elastic properties to fully manifest and ensure a strong and durable bond.

 

Q) How can I clean tools and surfaces after using Soudaseal 250XF?

A) Immediate cleaning after use is advisable. Use Soudal Swipex Cleaning Wipes to remove any uncured adhesive residue. If the adhesive has already cured, mechanical removal will be necessary, and Soudal Sealant Remover can assist in this process.

 

Q) Can Soudaseal 250XF be used on natural stone?

A) Yes, Soudaseal 250XF can be used for bonding natural stone. However, it cannot be used as a joint sealant on natural stone surfaces. It is suitable for bonding on the bottom of natural stone tiles.

 

Q) Is Soudaseal 250XF suitable for glazing applications?

A) No, Soudaseal 250XF is not suitable for use as a glazing sealant.

 

Q) Can Soudaseal 250XF be used for bonding aquariums?

A) No, Soudaseal 250XF is not suitable for bonding aquariums or for applications involving continuous water immersion.

 

Q) What are the temperature limits for Soudaseal 250XF?

A) Soudaseal 250XF can withstand temperature extremes from -40°C to 90°C, making it suitable for both indoor and outdoor applications.

 

Q) How does Soudaseal 250XF perform under UV exposure?

A) Soudaseal 250XF may discolour under extreme conditions or prolonged UV exposure, but this does not affect its technical properties.

 

Q) What are the resistance properties of Soudaseal 250XF?

A) Soudaseal 250XF has good resistance to (salt) water, aliphatic solvents, hydrocarbons, ketones, esters, alcohols, diluted mineral acids, and alkalis. It has poor resistance to aromatic solvents, concentrated acids, and chlorinated hydrocarbons.

 

Q) What should be avoided when using Soudaseal 250XF?

A) Avoid contact with bitumen, tar, or other plasticiser-releasing materials such as EPDM, neoprene, and butyl, as this can cause discolouration and loss of adhesion. Also, do not use Soudaseal 250XF on PE, PP, PTFE (e.g., Teflon®), bituminous substrates, copper, or copper-containing materials such as bronze and brass.

 

Q) How should different reactive joint sealants be used with Soudaseal 250XF?

A) When using different reactive joint sealants, ensure that the first joint sealant is completely hardened before applying the next one to avoid any compatibility issues.

 

Q) Is Soudaseal 250XF compliant with environmental regulations?

A) Yes, Soudaseal 250XF conforms to the requirements of LEED for low-emitting materials, including adhesives and sealants. It complies with SCAQMD rule 1168 and USGBC LEED 2009 Credit 4.1 regarding VOC content.

 

Q) What is the skin formation time for Soudaseal 250XF?

A) The skin formation time for Soudaseal 250XF is approximately 5 minutes at 23°C and 50% relative humidity.

 

Q) What is the curing speed of Soudaseal 250XF?

A) Soudaseal 250XF cures at a speed of 3 mm per 24 hours at 23°C and 50% relative humidity.

 

Q) What is the maximum tension for Soudaseal 250XF?

A) The maximum tension for Soudaseal 250XF is 3.00 N/mm², making it a strong and durable adhesive for various applications.

 

Q) What is the elasticity modulus of Soudaseal 250XF at 100% elongation?

A) The elasticity modulus of Soudaseal 250XF at 100% elongation is 1.60 N/mm².

 

Q) What is the elongation at break for Soudaseal 250XF?

A) The elongation at break for Soudaseal 250XF is 500%, ensuring flexibility and durability in bonded joints.

 

Q) What is the density of Soudaseal 250XF?

A) The density of Soudaseal 250XF is approximately 1.47 g/ml, contributing to its robust mechanical properties and performance.

Technical Data Sheet

 

Declaration of Performance (DoP)

 

Safety Data Sheet

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