Soudal Silirub A General Purpose Acetoxy Silicone

Soudal Silirub A is a versatile, low modulus acetoxy cure silicone sealant designed for general-purpose use. It provides excellent adhesion to various substrates such as glass, ceramic, porcelain, metals, stainless steel, and wood.

With its mould-resistant properties, Silirub A is particularly suitable for sanitary applications in high-humidity areas like kitchens and bathrooms. This weather-resistant sealant is also resistant to chemicals, ensuring durability in different environments.

Note that Silirub A is not recommended for use on PVC. Instead, opt for Soudal Stay Fresh NEUTRAL, a neutral curing silicone.

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Soudal Silirub A is a versatile, low modulus acetoxy cure silicone sealant designed for general-purpose use. It provides excellent adhesion to various substrates such as glass, ceramic, porcelain, metals, stainless steel, and wood.

With its mould-resistant properties, Silirub A is particularly suitable for sanitary applications in high-humidity areas like kitchens and bathrooms. This weather-resistant sealant is also resistant to chemicals, ensuring durability in different environments.

Note that Silirub A is not recommended for use on PVC. Instead, opt for Soudal Stay Fresh NEUTRAL, a neutral curing silicone.

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Key Features of Soudal Silirub A:

✔️ Versatile general-purpose acetoxy cure silicone sealant for multiple substrates.

✔️ Mould-resistant, ideal for high-humidity areas like kitchens and bathrooms.

✔️ Excellent weather, chemical, and UV resistance for durable, long-lasting seals.

✔️ Permanent elasticity to accommodate movement and vibration without losing effectiveness.

✔️ Primerless adhesion on glass, ceramic, porcelain, metals, stainless steel, and wood.

 

Full Product Description

Soudal Silirub A is formulated as a general purpose acetoxy cure silicone sealant, providing high performance in a wide range of applications. With its high-quality composition, Silirub A ensures ease of application, excellent adhesion, and lasting elasticity after curing.

One of the key features of Silirub A is its exceptional adhesion on traditional materials, allowing for primerless application in various scenarios. This versatile sealant can be safely used on glass, ceramic, porcelain, metals, stainless steel, and wood, making it an ideal choice for professionals in the construction, glazing, and sanitary industries.

Silirub A stands out for its impressive resistance to weathering, chemicals, and extreme temperatures, ensuring long-lasting protection and sealing. It boasts outstanding colourfastness and UV resistance, maintaining its visual appeal even in outdoor applications exposed to sunlight. Moreover, the inclusion of DCOIT, a biocide with fungicidal action, makes Silirub A impervious to mould growth, ensuring sanitary applications remain clean and hygienic.

The product's acetoxy cure formulation ensures reliable and efficient curing. Once fully cured, Silirub A exhibits permanent elasticity, accommodating movement and vibration without compromising its sealing effectiveness. This property makes it an excellent choice for applications with dynamic stresses or where flexibility is vital.


Product Benefits:

  • Very Easy to Apply: Silirub A is designed for effortless application, ensuring smooth and accurate results. Its consistency and flow properties make it easy to work with, reducing the time and effort needed for sealing applications.

  • Colourfast and UV Resistant: With excellent colorfastness and UV resistance, Silirub A maintains its appearance even when exposed to sunlight or other harsh outdoor conditions. This feature is particularly beneficial for glazing and construction applications where aesthetics play a crucial role.

  • Impervious to Mould: Silirub A contains DCOIT, a powerful biocide with fungicidal action, ensuring resistance to mould growth. This makes it a perfect choice for sanitary applications and areas with high humidity, such as kitchens and bathrooms.

  • Permanent Elasticity: Once cured, Silirub A retains its elasticity, allowing for seamless movement and vibration absorption without compromising its sealing properties. This ensures optimal performance and longevity of the seal.

  • Acetoxy Cure Silicone: Silirub A's acetoxy cure formulation ensures reliable and efficient curing, guaranteeing a durable and long-lasting seal.

  • Primerless Adhesion on Traditional Materials: Silirub A provides exceptional adhesion on various traditional materials such as glass, ceramic, porcelain, metals, stainless steel, and wood, eliminating the need for primers in most applications.

  • S1 Fungicide: Silirub A incorporates an S1 fungicide, further enhancing its resistance to mould and ensuring a hygienic environment in sanitary applications.


Typical Applications:

  • Sanitary Applications: Silirub A is the ideal choice for sealing in bathrooms and kitchens, as well as other high-humidity areas. It can be used for sealing all types of sanitary ware, including baths, basins, showers, toilets, and glazed tile surrounds.

  • Glazing: Silirub A is suitable for glass-to-glass sealing joints, top sealing of traditional glass and aluminum joints, and perimeter sealing of wooden window and door frames. Its lasting elasticity ensures a reliable and aesthetically pleasing seal.

  • Construction Applications: Silirub A can be applied in various construction projects, including sealing industrial applications such as coated metals, anodised aluminum, and stainless steel. It provides durable and flexible seals that withstand continuous stresses and environmental conditions.

  • Industrial Applications: Silirub A becomes indispensable in sealing HVAC ducting, pipework, and drainage joints, offering a reliable and long-lasting solution for demanding industrial environments.

  • General Maintenance: Beyond construction and industrial applications, Silirub A finds its use in general maintenance, providing effective sealing for cars, caravans, mobile homes, and boats. Its resistance to weathering, chemicals, and extreme temperatures ensures reliable performance in various settings.

Substrate Suitability:

Soudal Silirub A adheres superbly to most common building substrates, including glass, ceramic, porcelain, metals, stainless steel, and wood. However, it is not suitable for use on PVC surfaces.

Please note that Silirub A does not provide adhesion on PE, PP, PTFE (Teflon®), and bituminous substrates. We strongly recommend conducting a preliminary compatibility test before applying the sealant to ensure the best results.


Surface Preparation:

To achieve a secure and long-lasting bond, it is crucial to prepare the surfaces properly.

Before applying Soudal Silirub A, make sure the surfaces are clean, dry, and free of dust and grease. For porous surfaces in water-loaded applications, it is essential to prime the surface with Soudal Primer 150.

However, non-porous substrates do not require a primer. Proper surface preparation ensures optimal adhesion and a reliable seal.


Application Method:

Using a caulking gun allows for fast and efficient application of Soudal Silirub A. Follow these step-by-step instructions for the best results:

  1. Cut the nozzle of the cartridge at a 45-degree angle to the desired size. This angle helps control the bead size during application.

  2. Load the cartridge into the caulking gun, ensuring it is securely in place.

  3. Apply consistent pressure on the trigger of the caulking gun to dispense the sealant. Direct the nozzle tip into the joint, filling the gap completely with the silicone sealant.

  4. For optimal results, it is recommended to spray the surface with a soapy solution just before the sealant begins to skin. This step enables easy smoothing of the sealant and ensures a smooth and professional finish.


Finishing:

Once the sealant is applied, it can be smoothly finished using the Soudaglatt Smoothing Tool or a similar tool of your choice. Simply run the tool smoothly along the sealant line to create an even finish.

If a smoothing tool is not available, a wetted finger can be used to achieve a similar effect. Perform the finishing process before the sealant begins to skin, ensuring a neat and tidy appearance.

Coverage of any sealant product varies depending on Joint Width and Joint Depth.

Please refer to our Guide on How To Measure The Number of Tubes Required For the Job.


Joint Dimensions:

  • Minimum Width for Joints: 5mm

  • Maximum Width for Joints: 30mm

  • Minimum Depth for Joints: 5mm

  • Recommendation Sealing Jobs: Joint Width = 2 x Joint Depth.


Cleaning:

Uncured product can be easily cleaned using Soudal Swipex Cleaning Wipes. For cured sealant, it should be removed mechanically with the aid of Soudal Sealant Remover or Soudal Silicone Remover Gel.

Follow the instructions provided with Soudal Sealant Remover Spray for effective removal.


Remarks:

  • Because of the acid nature, certain metals (eg copper, lead) can be affected.

  • Do not use on natural stones like marble, granite etc. as it may cause staining.

  • Direct contact with the secondary sealing of insulating glass units (insulation) and the PVB-film of safety glass must be avoided.

  • The sanitary formula should not replace regular cleaning of the joint. Excessive contamination, deposits or soap remainings will stimulate the development of fungi.

  • A total absence of UV can cause a colour change of the sealant.

  • In an acid environment or in a dark room, white silicone can slightly turn yellow. Under the influence of sunlight it will turn back to its initial colour.

  • When finished with a finishing solution or soapy solution, make sure that the surfaces are not touched by this solution. This will cause the sealant not to adhere to that surface. Therefore we recommend to only dip the finishing tool in this solution.

  • We strongly recommend not to apply the product in full sunlight as it will dry very fast.

  • Do not use in applications where continuous water immersion is possible.

  • Do not use on polycarbonate. Use Soudal Aquafix - All Weather Sealant instead.

Q) What is Soudal Silirub A and for what applications is it most suitable?

A) Soudal Silirub A is a versatile, low modulus acetoxy cure silicone sealant designed for general-purpose use across a wide range of applications. It provides excellent adhesion to materials like glass, ceramic, porcelain, metals, stainless steel, and wood, making it particularly suitable for sanitary applications in high-humidity areas such as kitchens and bathrooms, as well as for glazing, construction, and industrial uses. Its mould-resistant properties and resistance to weather and chemicals make it a robust choice for both indoor and outdoor environments.


Q) Can Silirub A be used on PVC surfaces?

A) No, Silirub A is not recommended for use on PVC surfaces. For sealing applications involving PVC, we recommend using Stay Fresh NEUTRAL, a neutral curing silicone, which is better suited for adherence to PVC materials.


Q) What makes Silirub A resistant to mould?

A) Silirub A contains DCOIT, a powerful biocide with fungicidal action, which prevents the growth of mould. This makes it an ideal sealant for areas prone to high humidity, such as bathrooms and kitchens, ensuring these areas remain clean and hygienic over time.

 

Q) Can Silirub A be painted over after application?

A) Silirub A is not designed to be painted over. Its surface does not allow for adequate paint adhesion, meaning that paint may not stick properly or could peel off over time. If a paintable seal is required for your project, it's advisable to use a specially formulated paintable silicone or a different type of sealant (such as a Hybrid Polymer Sealant) that is compatible with paint. Always test the paint compatibility on a small, inconspicuous area first or consult with the sealant manufacturer for recommendations on paintable products.

 

Q) Is Silirub A easy to apply?

A) Yes, Silirub A is designed for effortless application. Its stable paste consistency and flow properties allow for smooth, precise application with a caulking gun, minimising the time and effort required for sealing tasks. This ease of application makes it a preferred choice for professionals and DIY enthusiasts alike.


Q) How does Silirub A maintain its appearance over time?

A) Silirub A boasts excellent colourfastness and UV resistance, ensuring it maintains its appearance even when exposed to sunlight and harsh outdoor conditions. This feature is particularly beneficial for glazing and construction applications where maintaining aesthetics is crucial.


Q) What are the benefits of Silirub A's acetoxy cure formulation?

A) Silirub A’s acetoxy cure formulation ensures reliable and efficient curing, leading to a durable and long-lasting seal. This curing process is known for its quick skin formation and overall curing speed, guaranteeing a permanent elasticity that accommodates movement and vibration without compromising sealing effectiveness.


Q) On what substrates does Silirub A provide primerless adhesion?

A) Silirub A offers exceptional primerless adhesion on a variety of traditional materials, including glass, ceramic, porcelain, metals, stainless steel, and wood. This broad compatibility eliminates the need for a primer in most scenarios, simplifying the application process.


Q) How should surfaces be prepared before applying Silirub A?

A) To achieve a secure and long-lasting bond with Silirub A, surfaces must be clean, dry, and free of dust and grease. For porous surfaces in water-loaded applications, it's essential to prime the surface with Soudal Primer 150. However, non-porous substrates do not require a primer. Proper surface preparation is crucial for optimal adhesion and reliability of the seal.


Q) What is the recommended method for applying Silirub A?

A) For best results, use a caulking gun to apply Silirub A. Start by cutting the nozzle of the cartridge at a 45-degree angle to the desired bead size. Load the cartridge into the caulking gun securely, apply consistent pressure to the trigger, and direct the nozzle tip into the joint, filling the gap completely with the silicone sealant. For a professional finish, spray the surface with a soapy solution just before the sealant begins to skin, enabling easy smoothing.


Q) How can Silirub A be finished for a neat appearance?

A) Once Silirub A is applied, it can be smoothly finished with the Soudaglatt Smoothing Tool or a similar tool. Simply run the tool along the sealant line to create an even finish. If a tool is not available, a wetted finger can achieve a similar effect. Perform the finishing process before the sealant skins to ensure a neat and tidy appearance.


Q) What are the joint dimension recommendations for Silirub A?

A) The minimum width for joints when using Silirub A is 5mm, and the maximum width is 30mm, with a minimum depth of 5mm. For sealing jobs, it is recommended that the joint width equals twice the joint depth to ensure adequate sealant coverage and performance.


Q) How can uncured Silirub A be cleaned from surfaces?

A) Uncured Silirub A can be easily cleaned using Soudal Swipex Cleaning Wipes. These wipes are specially formulated to remove uncured sealant effectively, facilitating a clean working environment and preventing unwanted residue on surfaces.


Q) What is the smell associated with Silirub A during application?

Silirub A has a typical acetic smell, similar to vinegar, which is a characteristic of its acetoxy cure formulation. While this odour is noticeable during application and curing, it diminishes once the sealant is fully cured. Users should ensure adequate ventilation in the application area to minimise discomfort from the odour.


Q) Can Silirub A be used in continuous water immersion applications?

A) No, Silirub A is not suitable for applications where continuous water immersion is possible. Its acetoxy formulation is designed for environments where it will not be permanently submerged in water. For sealing tasks requiring water immersion resistance, alternative products specifically designed for such conditions should be considered.


Q) How does Silirub A perform in different temperatures?

A) Silirub A is designed to withstand temperature extremes, offering temperature resistance from -60 °C to 120 °C once fully cured. This makes it a reliable sealing solution for applications exposed to varying environmental temperatures, ensuring consistent performance and durability.


Q) Is Silirub A suitable for sealing natural stones?

A) No, Silirub A should not be used on natural stones like marble or granite as it may cause staining. For sealing applications involving natural stones, products like Soudal Fix All Flexi, which are specifically formulated to prevent staining on these materials, should be used instead.


Q) How does Silirub A adhere to metal surfaces?

A) Silirub A provides excellent adhesion to metal surfaces, including stainless steel, without the need for a primer. However, due to its acetic nature, certain metals such as copper and lead may be affected. It's always advisable to perform a preliminary compatibility test before application to ensure the best results and prevent potential corrosion.


Q) Can Silirub A be used on safety glass or insulating glass units?

A) Direct contact with the secondary sealing of insulating glass units and the PVB film of safety glass should be avoided when using Silirub A, as the acetoxy cure formulation may affect these materials. If sealing around such glass types is necessary, consider using a neutral cure silicone that is compatible with these specific applications.


Q) How does Silirub A contribute to LEED certification?

A) Silirub A conforms to the requirements of LEED for Low-Emitting Materials: Adhesives and Sealants. Its compliance with SCAQMD rule 1168 and USGBC LEED 2009 Credit 4.1 regarding VOC content makes it a suitable choice for projects aiming for LEED certification, contributing to healthier indoor air quality and environmental sustainability.


Q) What is the curing speed of Silirub A?

A) Silirub A has a curing speed of approximately 2 mm per 24 hours at 23°C and 50% relative humidity. This ensures a relatively quick curing process, allowing for efficient completion of sealing tasks and reducing downtime in construction or maintenance projects.


Q) How should Silirub A be stored for optimal shelf life?

A) Silirub A should be stored in a cool, dry place, away from direct sunlight, to preserve its quality and extend its shelf life. Proper storage conditions will ensure that Silirub A retains its application properties and performance characteristics until it is ready to be used.


Q) What is the application temperature range for Silirub A?

A) The recommended application temperature range for Silirub A is between 5 °C and 35 °C. Applying the sealant within this temperature range ensures optimal adhesion and ease of application. Extreme temperatures can affect the sealant's consistency and curing properties.


Q) How does Silirub A resist UV and maintain its colour?

A) Silirub A is formulated with UV-resistant ingredients, which prevent degradation and colour fading when exposed to sunlight. This ensures that the sealant maintains its visual appeal and performance, making it suitable for outdoor applications where UV exposure is a concern.


Q) Can Silirub A be used for glazing applications?

A) Yes, Silirub A is suitable for glazing applications, including glass-to-glass sealing joints and perimeter sealing of wooden window and door frames. Its lasting elasticity and resistance to weathering make it a reliable choice for ensuring a durable and aesthetically pleasing seal in glazing projects.


Q) Is Silirub A suitable for industrial applications?

A) Silirub A is highly suitable for various industrial applications, including sealing HVAC ducting, pipework, and drainage joints. Its resistance to chemicals, weather, and extreme temperatures ensures reliable performance in demanding industrial environments.


Q) How does Silirub A handle dynamic stresses and vibrations?

A) Once cured, Silirub A retains its elasticity, allowing it to absorb movement and vibration without compromising its sealing properties. This permanent elasticity ensures that Silirub A remains effective in applications subject to dynamic stresses, making it an excellent choice for areas that experience frequent movement or structural shifts.


Q) Can Silirub A be used for general maintenance tasks?

A) Yes, Silirub A is an ideal sealant for general maintenance tasks, including sealing in cars, caravans, mobile homes, and boats. Its versatility, coupled with resistance to weathering, chemicals, and extreme temperatures, ensures reliable sealing performance across a variety of maintenance applications.


Q) What cleaning practices are recommended for areas sealed with Silirub A?

A) While Silirub A is resistant to mould thanks to its fungicidal action, maintaining cleanliness in sealed areas is still important. Regular cleaning of the joint areas helps prevent excessive contamination and soap deposits, which could stimulate fungal development despite the sealant's protective properties.


Q) How does exposure to sunlight affect Silirub A?

A) Silirub A is UV resistant, which helps it maintain its colour and integrity when exposed to sunlight. However, it's noted that in an acid environment or in the absence of UV, white silicone can slightly turn yellow. This discoloration is reversible, and exposure to sunlight can restore Silirub A to its initial colour, ensuring its appearance remains consistent over time.


Q) Are there any special precautions to take when finishing Silirub A with a soapy solution?

A) When finishing Silirub A with a soapy solution, care should be taken to ensure that the surfaces adjacent to the sealant are not contaminated by the solution. This precaution helps maintain the adhesion of Silirub A to the surface. It's recommended to only dip the finishing tool in the solution and to avoid application in full sunlight, as the solution can dry quickly, potentially affecting the finish quality.

Key Features of Soudal Silirub A:

✔️ Versatile general-purpose acetoxy cure silicone sealant for multiple substrates.

✔️ Mould-resistant, ideal for high-humidity areas like kitchens and bathrooms.

✔️ Excellent weather, chemical, and UV resistance for durable, long-lasting seals.

✔️ Permanent elasticity to accommodate movement and vibration without losing effectiveness.

✔️ Primerless adhesion on glass, ceramic, porcelain, metals, stainless steel, and wood.

 

Full Product Description

Soudal Silirub A is formulated as a general purpose acetoxy cure silicone sealant, providing high performance in a wide range of applications. With its high-quality composition, Silirub A ensures ease of application, excellent adhesion, and lasting elasticity after curing.

One of the key features of Silirub A is its exceptional adhesion on traditional materials, allowing for primerless application in various scenarios. This versatile sealant can be safely used on glass, ceramic, porcelain, metals, stainless steel, and wood, making it an ideal choice for professionals in the construction, glazing, and sanitary industries.

Silirub A stands out for its impressive resistance to weathering, chemicals, and extreme temperatures, ensuring long-lasting protection and sealing. It boasts outstanding colourfastness and UV resistance, maintaining its visual appeal even in outdoor applications exposed to sunlight. Moreover, the inclusion of DCOIT, a biocide with fungicidal action, makes Silirub A impervious to mould growth, ensuring sanitary applications remain clean and hygienic.

The product's acetoxy cure formulation ensures reliable and efficient curing. Once fully cured, Silirub A exhibits permanent elasticity, accommodating movement and vibration without compromising its sealing effectiveness. This property makes it an excellent choice for applications with dynamic stresses or where flexibility is vital.


Product Benefits:

  • Very Easy to Apply: Silirub A is designed for effortless application, ensuring smooth and accurate results. Its consistency and flow properties make it easy to work with, reducing the time and effort needed for sealing applications.

  • Colourfast and UV Resistant: With excellent colorfastness and UV resistance, Silirub A maintains its appearance even when exposed to sunlight or other harsh outdoor conditions. This feature is particularly beneficial for glazing and construction applications where aesthetics play a crucial role.

  • Impervious to Mould: Silirub A contains DCOIT, a powerful biocide with fungicidal action, ensuring resistance to mould growth. This makes it a perfect choice for sanitary applications and areas with high humidity, such as kitchens and bathrooms.

  • Permanent Elasticity: Once cured, Silirub A retains its elasticity, allowing for seamless movement and vibration absorption without compromising its sealing properties. This ensures optimal performance and longevity of the seal.

  • Acetoxy Cure Silicone: Silirub A's acetoxy cure formulation ensures reliable and efficient curing, guaranteeing a durable and long-lasting seal.

  • Primerless Adhesion on Traditional Materials: Silirub A provides exceptional adhesion on various traditional materials such as glass, ceramic, porcelain, metals, stainless steel, and wood, eliminating the need for primers in most applications.

  • S1 Fungicide: Silirub A incorporates an S1 fungicide, further enhancing its resistance to mould and ensuring a hygienic environment in sanitary applications.


Typical Applications:

  • Sanitary Applications: Silirub A is the ideal choice for sealing in bathrooms and kitchens, as well as other high-humidity areas. It can be used for sealing all types of sanitary ware, including baths, basins, showers, toilets, and glazed tile surrounds.

  • Glazing: Silirub A is suitable for glass-to-glass sealing joints, top sealing of traditional glass and aluminum joints, and perimeter sealing of wooden window and door frames. Its lasting elasticity ensures a reliable and aesthetically pleasing seal.

  • Construction Applications: Silirub A can be applied in various construction projects, including sealing industrial applications such as coated metals, anodised aluminum, and stainless steel. It provides durable and flexible seals that withstand continuous stresses and environmental conditions.

  • Industrial Applications: Silirub A becomes indispensable in sealing HVAC ducting, pipework, and drainage joints, offering a reliable and long-lasting solution for demanding industrial environments.

  • General Maintenance: Beyond construction and industrial applications, Silirub A finds its use in general maintenance, providing effective sealing for cars, caravans, mobile homes, and boats. Its resistance to weathering, chemicals, and extreme temperatures ensures reliable performance in various settings.

Substrate Suitability:

Soudal Silirub A adheres superbly to most common building substrates, including glass, ceramic, porcelain, metals, stainless steel, and wood. However, it is not suitable for use on PVC surfaces.

Please note that Silirub A does not provide adhesion on PE, PP, PTFE (Teflon®), and bituminous substrates. We strongly recommend conducting a preliminary compatibility test before applying the sealant to ensure the best results.


Surface Preparation:

To achieve a secure and long-lasting bond, it is crucial to prepare the surfaces properly.

Before applying Soudal Silirub A, make sure the surfaces are clean, dry, and free of dust and grease. For porous surfaces in water-loaded applications, it is essential to prime the surface with Soudal Primer 150.

However, non-porous substrates do not require a primer. Proper surface preparation ensures optimal adhesion and a reliable seal.


Application Method:

Using a caulking gun allows for fast and efficient application of Soudal Silirub A. Follow these step-by-step instructions for the best results:

  1. Cut the nozzle of the cartridge at a 45-degree angle to the desired size. This angle helps control the bead size during application.

  2. Load the cartridge into the caulking gun, ensuring it is securely in place.

  3. Apply consistent pressure on the trigger of the caulking gun to dispense the sealant. Direct the nozzle tip into the joint, filling the gap completely with the silicone sealant.

  4. For optimal results, it is recommended to spray the surface with a soapy solution just before the sealant begins to skin. This step enables easy smoothing of the sealant and ensures a smooth and professional finish.


Finishing:

Once the sealant is applied, it can be smoothly finished using the Soudaglatt Smoothing Tool or a similar tool of your choice. Simply run the tool smoothly along the sealant line to create an even finish.

If a smoothing tool is not available, a wetted finger can be used to achieve a similar effect. Perform the finishing process before the sealant begins to skin, ensuring a neat and tidy appearance.

Coverage of any sealant product varies depending on Joint Width and Joint Depth.

Please refer to our Guide on How To Measure The Number of Tubes Required For the Job.


Joint Dimensions:

  • Minimum Width for Joints: 5mm

  • Maximum Width for Joints: 30mm

  • Minimum Depth for Joints: 5mm

  • Recommendation Sealing Jobs: Joint Width = 2 x Joint Depth.


Cleaning:

Uncured product can be easily cleaned using Soudal Swipex Cleaning Wipes. For cured sealant, it should be removed mechanically with the aid of Soudal Sealant Remover or Soudal Silicone Remover Gel.

Follow the instructions provided with Soudal Sealant Remover Spray for effective removal.


Remarks:

  • Because of the acid nature, certain metals (eg copper, lead) can be affected.

  • Do not use on natural stones like marble, granite etc. as it may cause staining.

  • Direct contact with the secondary sealing of insulating glass units (insulation) and the PVB-film of safety glass must be avoided.

  • The sanitary formula should not replace regular cleaning of the joint. Excessive contamination, deposits or soap remainings will stimulate the development of fungi.

  • A total absence of UV can cause a colour change of the sealant.

  • In an acid environment or in a dark room, white silicone can slightly turn yellow. Under the influence of sunlight it will turn back to its initial colour.

  • When finished with a finishing solution or soapy solution, make sure that the surfaces are not touched by this solution. This will cause the sealant not to adhere to that surface. Therefore we recommend to only dip the finishing tool in this solution.

  • We strongly recommend not to apply the product in full sunlight as it will dry very fast.

  • Do not use in applications where continuous water immersion is possible.

  • Do not use on polycarbonate. Use Soudal Aquafix - All Weather Sealant instead.

Q) What is Soudal Silirub A and for what applications is it most suitable?

A) Soudal Silirub A is a versatile, low modulus acetoxy cure silicone sealant designed for general-purpose use across a wide range of applications. It provides excellent adhesion to materials like glass, ceramic, porcelain, metals, stainless steel, and wood, making it particularly suitable for sanitary applications in high-humidity areas such as kitchens and bathrooms, as well as for glazing, construction, and industrial uses. Its mould-resistant properties and resistance to weather and chemicals make it a robust choice for both indoor and outdoor environments.


Q) Can Silirub A be used on PVC surfaces?

A) No, Silirub A is not recommended for use on PVC surfaces. For sealing applications involving PVC, we recommend using Stay Fresh NEUTRAL, a neutral curing silicone, which is better suited for adherence to PVC materials.


Q) What makes Silirub A resistant to mould?

A) Silirub A contains DCOIT, a powerful biocide with fungicidal action, which prevents the growth of mould. This makes it an ideal sealant for areas prone to high humidity, such as bathrooms and kitchens, ensuring these areas remain clean and hygienic over time.

 

Q) Can Silirub A be painted over after application?

A) Silirub A is not designed to be painted over. Its surface does not allow for adequate paint adhesion, meaning that paint may not stick properly or could peel off over time. If a paintable seal is required for your project, it's advisable to use a specially formulated paintable silicone or a different type of sealant (such as a Hybrid Polymer Sealant) that is compatible with paint. Always test the paint compatibility on a small, inconspicuous area first or consult with the sealant manufacturer for recommendations on paintable products.

 

Q) Is Silirub A easy to apply?

A) Yes, Silirub A is designed for effortless application. Its stable paste consistency and flow properties allow for smooth, precise application with a caulking gun, minimising the time and effort required for sealing tasks. This ease of application makes it a preferred choice for professionals and DIY enthusiasts alike.


Q) How does Silirub A maintain its appearance over time?

A) Silirub A boasts excellent colourfastness and UV resistance, ensuring it maintains its appearance even when exposed to sunlight and harsh outdoor conditions. This feature is particularly beneficial for glazing and construction applications where maintaining aesthetics is crucial.


Q) What are the benefits of Silirub A's aceto