Soudal Primer 150 - Silicone & Hybrid Polymer Sealant Surface Primer

Substrate Suitability:

Soudal Primer 150 is suitable for use on a wide range of common porous building substrates, including concrete, brick, wood, and other porous materials typically found in construction and renovation projects.

It is specifically designed to enhance the adhesion of silicone-based sealants, such as Silirub LMN, Silirub 2, and Silirub A, as well as hybrid polymer sealants like Soudaseal and Fix All products.

The primer should not be used on non-porous substrates or with polyurethane-based sealants, such as Soudaflex 40FC, as these require a different primer, Soudal Primer 100, for optimal results.

Before using Soudal Primer 150, it is important to ensure that the substrate is rigid, clean, dry, and free of dust, grease, or any loose particles that could interfere with the primer's adhesion properties.

Surface Preparation:

Proper surface preparation is crucial to achieving the best results when using Soudal Primer 150. Begin by thoroughly cleaning the substrate to remove all dirt, dust, grease, and any other contaminants.

It is recommended to use a suitable cleaning agent or a brush to scrub the surface, ensuring that all loose particles and residues are eliminated. For surfaces with existing sealants or coatings, it is advisable to remove these materials completely to expose a fresh, porous surface.

Once cleaned, allow the substrate to dry completely, as moisture can negatively affect the primer's adhesion. The surface should also be rigid and stable to prevent any movement that could compromise the bond between the primer and the substrate.

Application Method:

Applying Soudal Primer 150 is straightforward, but it is essential to follow the correct procedure to ensure optimal performance.

The primer should be applied using a brush or roller, ensuring a full, even covering layer across the entire surface. Take care to avoid pooling or excess accumulation of the primer, as this can lead to uneven drying and potential adhesion issues.

It is important to apply the primer in a single, uniform coat to ensure consistent coverage. Once the primer has been applied, it is necessary to allow a minimum waiting time of one hour before applying any joint sealant. This allows the primer to penetrate the porous substrate fully and develop its bonding properties.

However, the sealant should be applied within a maximum of four hours after priming. If more than four hours have elapsed since the primer was applied, a new layer of Soudal Primer 150 must be applied to reactivate the surface and ensure optimal adhesion of the sealant.

Finishing:

After the primer has been applied and has sufficiently dried for at least one hour, you can proceed with the application of the chosen sealant.

Apply the sealant according to the manufacturer's instructions, ensuring a continuous and even bead along the joint or surface area. The primed surface will enhance the adhesion of the sealant, providing a durable and effective seal.

Take care to smooth the sealant immediately after application to achieve a neat finish and to ensure that it fully adheres to the primed surface.

Once the sealant has been applied and smoothed, allow it to cure as per the manufacturer's guidelines to achieve a strong, long-lasting seal.

Cleaning:

Cleaning up after using Soudal Primer 150 is an essential step to maintain your tools and ensure a neat work area. Any tools or equipment used to apply the primer, such as brushes or rollers, should be cleaned immediately after use with white spirit.

It is crucial to perform this cleaning step before the primer cures, as once it has hardened, it will be much more difficult to remove. Clean all application tools thoroughly to remove all traces of the primer to prevent contamination during future use.

For any spills or accidental application, use white spirit immediately to wipe away the primer before it sets.

Other Information:

When using Soudal Primer 150, it is important to consider several additional factors to ensure the best results.

The primer should be stored in a cool, dry place, away from direct sunlight and extreme temperatures, to maintain its quality and effectiveness. Always check the expiration date on the packaging before use, as using expired primer can result in poor adhesion and suboptimal performance.

In environments with high humidity or temperature fluctuations, additional drying time may be required before applying the sealant. Always wear appropriate protective equipment, such as gloves and eye protection, when handling the primer to avoid skin and eye contact. In the event of contact with skin or eyes, rinse immediately with plenty of water and seek medical advice if irritation persists.

It is also advisable to work in a well-ventilated area to avoid inhaling fumes. By following these detailed instructions, you can ensure the successful use of Soudal Primer 150 for optimal sealing performance on porous substrates.

Q) What is Soudal Primer 150, and what is its primary use?

A) Soudal Primer 150 is a premium, liquid-based primer specifically designed for use on porous surfaces prior to the application of silicone-based sealants, such as Silirub LMN, Silirub 2, and Silirub A, as well as hybrid polymer sealants like Soudaseal or Fix All products. It is used to enhance the adhesion of these sealants to porous substrates, ensuring a strong and durable bond that resists water ingress, peeling, and cracking. The primer is ideal for both residential and commercial applications where reliable sealing of porous surfaces is essential.

Q) How does Soudal Primer 150 improve the adhesion of sealants on porous substrates?

A) Soudal Primer 150 penetrates deeply into porous substrates such as concrete, brick, and wood, creating a strong base layer that enhances the adhesion of silicone-based and hybrid polymer sealants. By improving the bond between the substrate and the sealant, the primer reduces the risk of sealant failure, such as peeling, cracking, or water ingress. This is particularly important in environments exposed to high water pressure or frequent moisture, where a robust seal is essential for long-term durability.

Q) What types of substrates are suitable for Soudal Primer 150?

A) Soudal Primer 150 is suitable for a wide range of porous building substrates, including concrete, brick, wood, and other materials commonly found in construction and renovation projects. It is specifically designed to enhance the adhesion of silicone-based sealants, such as Silirub LMN, Silirub 2, Silirub A, and hybrid polymer sealants like Soudaseal and Fix All products. The primer should not be used on non-porous substrates or with polyurethane-based sealants, such as Soudaflex 40FC, as these require a different primer for optimal results.

Q) Can Soudal Primer 150 be used with all types of sealants?

A) No, Soudal Primer 150 is not compatible with all types of sealants. It is specifically designed for use with silicone-based sealants, such as Silirub LMN, Silirub 2, Silirub A, and hybrid polymer sealants like Soudaseal and Fix All products. It should not be used with polyurethane-based sealants, such as Soudaflex 40FC. For polyurethane-based sealants, Soudal Primer 100 is recommended to ensure compatibility and optimal adhesion.

Q) How should surfaces be prepared before applying Soudal Primer 150?

A) Proper surface preparation is crucial for achieving the best results with Soudal Primer 150. Begin by thoroughly cleaning the substrate to remove all dirt, dust, grease, and any other contaminants. Use a suitable cleaning agent or brush to scrub the surface, ensuring all loose particles and residues are eliminated. For surfaces with existing sealants or coatings, these should be removed completely to expose a fresh, porous surface. Once cleaned, allow the substrate to dry completely, as moisture can negatively affect the primer's adhesion. The surface should also be rigid and stable to prevent any movement that could compromise the bond.

Q) What is the recommended method for applying Soudal Primer 150?

A) Soudal Primer 150 should be applied using a brush or roller to ensure a full, even covering layer across the entire surface. Avoid pooling or excess accumulation of the primer, as this can lead to uneven drying and potential adhesion issues. Apply the primer in a single, uniform coat to ensure consistent coverage. After application, allow a minimum waiting time of one hour before applying any joint sealant. The sealant should be applied within a maximum of four hours after priming. If more than four hours have elapsed, a new layer of Soudal Primer 150 must be applied to reactivate the surface.

Q) What are the benefits of using Soudal Primer 150 in high-moisture environments?

A) Soudal Primer 150 is particularly effective in high-moisture environments, such as bathrooms, kitchens, and outdoor areas exposed to frequent moisture or high water pressure. Its advanced formulation penetrates deep into porous substrates, creating a strong adhesive base that enhances the performance and durability of silicone-based and hybrid polymer sealants. This reduces the risk of water ingress and sealant degradation, ensuring long-lasting protection and maintaining the integrity of the structure.

Q) Can Soudal Primer 150 be used for preparing expansion joint surfaces?

A) Yes, Soudal Primer 150 is ideal for priming the sides of expansion joints. It provides a strong adhesive base that ensures the effective performance of silicone-based and hybrid polymer sealants. This application is crucial in both new construction and renovation projects where joint stability and longevity are essential, especially in areas exposed to movement or environmental stress.

Q) What are the technical specifications of Soudal Primer 150?

A) Soudal Primer 150 is based on synthetic resins and has a fluid consistency. It cures through physical drying and reaction with moisture. The density of the primer is approximately 0.93 g/ml, and it has a flashpoint of 8°C. The drying time is around 60 minutes at 23°C and 50% relative humidity. The consumption rate is about 5 m² per liter, and the application temperature range is 5°C to 25°C. These specifications ensure optimal performance and ease of use in various conditions.

Q) Is there a specific drying time for Soudal Primer 150 before applying sealants?

A) Yes, after applying Soudal Primer 150, it is important to allow a minimum drying time of one hour before applying any joint sealant. This allows the primer to penetrate the porous substrate fully and develop its bonding properties. However, the sealant should be applied within a maximum of four hours after priming. If more than four hours have elapsed since the primer was applied, a new layer of Soudal Primer 150 must be applied to reactivate the surface and ensure optimal adhesion of the sealant.

Q) What should be done if more than four hours pass after applying Soudal Primer 150 before applying sealant?

A) If more than four hours have passed since Soudal Primer 150 was applied, it is necessary to apply a new layer of primer to reactivate the surface. This ensures that the substrate remains primed and ready for the optimal adhesion of the sealant. Applying a fresh coat of primer after four hours helps maintain the strong adhesive properties needed for a durable and effective seal.

Q) Can Soudal Primer 150 be used on non-porous surfaces?

A) No, Soudal Primer 150 is specifically designed for use on porous surfaces and is not suitable for non-porous substrates. Non-porous surfaces do not allow the primer to penetrate and bond effectively, which can result in poor adhesion and suboptimal performance. For non-porous substrates, different primers or adhesion promoters are recommended depending on the type of surface and sealant being used.

Q) What are the storage requirements for Soudal Primer 150?

A) Soudal Primer 150 should be stored in a cool, dry place, away from direct sunlight and extreme temperatures, to maintain its quality and effectiveness. The product should be kept in its original, tightly closed container to prevent contamination or evaporation. It is also important to check the expiration date on the packaging before use, as using expired primer can result in poor adhesion and suboptimal performance.

Q) Can Soudal Primer 150 be used in combination with polyurethane-based sealants?

A) No, Soudal Primer 150 is not compatible with polyurethane-based sealants, such as Soudaflex 40FC. For applications involving polyurethane-based products, Soudal Primer 100 should be used to ensure compatibility and optimal results. Using the correct primer for the specific sealant type is essential for achieving a strong and durable bond.

Q) How much area can be covered with a 500ml flask of Soudal Primer 150?

A) A 500ml flask of Soudal Primer 150 provides coverage for approximately 2.5 m² to 3 m², depending on the porosity of the substrate and the application method. It is important to apply a full, even covering layer across the entire surface to ensure optimal adhesion of the subsequent sealant. Coverage may vary based on the specific conditions of the application site.

Q) What safety precautions should be taken when using Soudal Primer 150?

A) When using Soudal Primer 150, it is important to wear appropriate protective equipment, such as gloves and eye protection, to avoid skin and eye contact. In the event of contact with skin or eyes, rinse immediately with plenty of water and seek medical advice if irritation persists. The primer should be used in a well-ventilated area to avoid inhaling fumes. It is also advisable to follow all safety guidelines provided on the product label and technical datasheet.

Q) How should tools be cleaned after applying Soudal Primer 150?

A) Tools and equipment used to apply Soudal Primer 150, such as brushes or rollers, should be cleaned immediately after use with white spirit. It is crucial to clean the tools before the primer cures, as once it has hardened, it will be much more difficult to remove. Thorough cleaning ensures that the tools are free from any residual primer, preventing contamination during future use.

Q) Is Soudal Primer 150 suitable for outdoor applications?

A) Yes, Soudal Primer 150 is suitable for outdoor applications, particularly on porous substrates exposed to frequent moisture or high water pressure. It enhances the adhesion of silicone-based and hybrid polymer sealants, providing a durable, water-resistant seal that protects outdoor surfaces from water ingress and environmental stress. However, it is important to ensure proper application and drying conditions to achieve the best results.

Q) Can Soudal Primer 150 be used in high-humidity environments?

A) Yes, Soudal Primer 150 can be used in high-humidity environments, but additional drying time may be required before applying the sealant. The primer's formulation is designed to work effectively in various conditions, including high humidity. However, ensuring that the primer has fully dried and cured is essential to maximise adhesion and sealant performance.

Q) What is the flashpoint of Soudal Primer 150, and why is it important?

A) The flashpoint of Soudal Primer 150 is 8°C. The flashpoint is the temperature at which the primer can form a flammable mixture with air. It is important to be aware of the flashpoint to ensure safe storage and handling of the product, especially in environments with potential ignition sources. Proper storage and handling practices help prevent fire hazards and ensure safe usage.

Q) What are the advantages of using a clear primer like Soudal Primer 150?

A) A clear primer like Soudal Primer 150 offers several advantages, including discreet application on various materials without altering the appearance of the substrate. Its transparency allows for seamless use on different surfaces, ensuring that the primer does not impact the final appearance of the finished project. The clear formulation also makes it easier to identify areas that have been primed and to ensure even coverage.

Q) Can Soudal Primer 150 be used for sealing and repair work in residential projects?

A) Yes, Soudal Primer 150 is an excellent choice for sealing and repair tasks in residential projects. Its versatility makes it suitable for preparing porous surfaces, such as brick, concrete, and wood, before applying silicone or hybrid polymer sealants. The primer ensures a durable and effective seal, reducing the risk of water ingress and enhancing the longevity of the repair work.

Q) How does Soudal Primer 150 enhance the performance of hybrid polymer sealants?

A) Soudal Primer 150 enhances the performance of hybrid polymer sealants by providing a strong adhesive base on porous substrates. The primer penetrates deeply into the substrate, creating a cohesive bond that improves the sealant's adhesion, durability, and resistance to environmental factors. This reduces the risk of sealant failure and ensures long-lasting protection, even in challenging conditions.

Q) What is the recommended application temperature range for Soudal Primer 150?

A) The recommended application temperature range for Soudal Primer 150 is between 5°C and 25°C. Applying the primer within this temperature range ensures optimal performance and adhesion properties. Temperatures outside this range can affect the primer's drying time and bonding capabilities, potentially compromising the effectiveness of the sealant application.

Q) Can Soudal Primer 150 be used for both new construction and renovation projects?

A) Yes, Soudal Primer 150 is suitable for both new construction and renovation projects. It provides a reliable priming solution for various porous substrates, ensuring strong adhesion of silicone-based and hybrid polymer sealants. Whether preparing surfaces in a new build or addressing damp or deteriorated areas in an older structure, the primer offers a versatile and effective solution for enhancing sealant performance.

Q) What are the typical applications for Soudal Primer 150 in commercial settings?

A) In commercial settings, Soudal Primer 150 is typically used for preparing porous surfaces, such as concrete, brick, and wood, before applying silicone-based and hybrid polymer sealants. It is ideal for priming expansion joint surfaces, preparing joints exposed to high water pressure, and sealing areas frequently exposed to moisture, such as bathrooms, kitchens, and exterior surfaces. The primer ensures long-lasting, high-quality results in various commercial sealing applications.

Q) How does Soudal Primer 150 contribute to the longevity of sealant applications?

A) Soudal Primer 150 contributes to the longevity of sealant applications by enhancing the adhesion between the porous substrate and the sealant. By creating a strong adhesive base, the primer reduces the risk of sealant failure, such as peeling, cracking, or water ingress. This extended durability ensures that the sealant remains effective for a longer period, reducing the need for frequent maintenance or reapplication.

Q) Is it necessary to use Soudal Primer 150 before applying all types of silicone-based sealants?

A) While Soudal Primer 150 is not necessary for every silicone-based sealant application, it is highly recommended for use on porous substrates where enhanced adhesion is required. The primer is particularly beneficial in environments exposed to high water pressure or frequent moisture, such as expansion joints or outdoor areas. Using the primer in these situations ensures a stronger and more durable sealant bond, reducing the risk of failure.

Q) What factors can affect the drying time of Soudal Primer 150?

A) Several factors can affect the drying time of Soudal Primer 150, including temperature, humidity, and the porosity of the substrate. Higher temperatures and lower humidity levels typically result in faster drying times, while cooler temperatures and higher humidity can prolong the drying process. Additionally, highly porous substrates may absorb the primer more quickly, requiring a longer drying time to achieve optimal adhesion properties.

Technical Data Sheet

Safety Data Sheet