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Soudal SBR Bonding Agent & Primer is a premium-grade, high-strength bonding agent with a 43% active solid content, formulated as an aqueous emulsion of styrene-butadiene copolymer.
This versatile product is designed to enhance the performance of cement-based mixtures, including mortar, screeds, and renders. It improves water resistance, flexibility, and durability, making it suitable for both interior and exterior applications.
The product also functions as a retarding agent at high temperatures and provides plasticity by acting as an air-entraining agent, ensuring long-term performance even in challenging conditions.
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✔️ Contains 43% active solid content, delivering exceptional bonding strength and long-lasting durability in various applications.
✔️ Enhances water resistance and durability of cement mixtures, ideal for both interior and exterior applications.
✔️ Improves flexibility and elasticity, reducing cracking and increasing the lifespan of cement-based materials.
✔️ Acts as a plasticiser and air-entraining agent, providing a smooth, workable mix for high-quality finishes.
✔️ Functions as a retarding agent in high temperatures, extending working time for precise application.
✔️ Resistant to hydrolysis, maintaining effectiveness in wet conditions for long-term performance and reliability.
Soudal SBR Bonding Agent & Primer is a premium bonding solution, expertly formulated to enhance the strength, durability, and longevity of cementitious materials in construction. Utilising a styrene-butadiene copolymer emulsion with a robust 43% active solid content, this versatile product is ideal for a wide range of applications, including mortar, screeds, renders, and hydraulic binders. Engineered with additional antioxidant, antifoam, and freeze stability agents, Soudal SBR Bonding Agent & Primer ensures consistent, reliable performance even in challenging environments.
A standout feature of Soudal SBR Bonding Agent & Primer is its capacity to improve water resistance in cement-based mixtures. This capability is essential in projects exposed to moisture or in exterior applications where preventing water ingress is crucial. By forming a protective barrier, it reduces the risk of water penetration, extending the lifespan of structures and minimising maintenance needs over time.
Soudal SBR Bonding Agent & Primer enhances the flexibility and elasticity of cementitious materials, providing greater resilience against cracking and structural stresses. This increased flexibility is particularly valuable for substrates that experience movement or thermal expansion, ensuring stability and durability even under changing environmental conditions.
This bonding agent also functions as a plasticiser and air-entraining agent, improving the workability of cement mixtures. These features are highly beneficial in rendering and plastering, where a smooth, workable mix is essential for a quality finish. With better cohesion and consistency, the mixture spreads evenly, reducing defects and enhancing the overall appearance of the finished surface.
In warmer climates or peak summer months, Soudal SBR Bonding Agent & Primer excels by acting as a retarding agent at temperatures above 25°C. This feature extends the working time, allowing for more controlled, precise application and reducing the challenges posed by rapid drying.
Soudal SBR Bonding Agent & Primer offers a durable barrier against environmental factors, significantly contributing to the longevity and integrity of construction. Its hydrolysis resistance ensures lasting effectiveness in both interior and exterior conditions, making it a reliable choice for various projects, including hydraulic binder modifications, mortar repairs, and new render applications.
With its high-performance characteristics and versatility, Soudal SBR Bonding Agent & Primer is an invaluable tool for professionals aiming to achieve exceptional standards in construction and renovation. From enhancing mechanical properties to providing superior protection, this bonding agent delivers dependable results, ensuring a durable, long-lasting finish that withstands the demands of modern construction.
High Solid Content for Superior Bonding Strength: Soudal SBR Bonding Agent & Primer features a high solid content of 43%, which significantly enhances its bonding strength and effectiveness. The elevated solid content ensures a denser, more robust bond between cementitious materials and substrates, providing superior adhesion. This is particularly beneficial in applications where maximum strength and stability are required, such as in high-traffic areas or external environments exposed to harsh weather conditions. The high solid content also contributes to the product’s durability and longevity, ensuring a reliable and long-lasting finish that withstands the test of time.
Enhanced Water Resistance: Soudal SBR Bonding Agent & Primer significantly improves the water resistance of cement-based mixtures, making them less permeable to water. This prevents water penetration and protects the structure from moisture damage, which is particularly important in external applications or areas exposed to damp conditions.
Increased Flexibility and Durability: By improving the flexibility and elasticity of cementitious materials, the bonding agent reduces the likelihood of cracking under stress or thermal expansion. This property enhances the durability of the construction, ensuring a long-lasting and resilient finish even in challenging environments.
Improved Workability and Consistency: Acting as a plasticiser and air-entraining agent, the bonding agent improves the workability and cohesion of cement mixtures. This allows for smoother application and a more consistent finish, which is particularly beneficial in rendering and plastering applications where surface quality is paramount.
Retarding Agent at High Temperatures: The bonding agent functions as a retarding agent, extending the working time of cement mixtures even in temperatures exceeding 25°C. This is invaluable in hot climates or during peak summer months, where rapid drying can be a challenge, allowing for more precise and controlled application.
Versatile Application: Suitable for use in a wide range of construction applications, including mortar, screeds, renders, and hydraulic binders, this product offers versatility and flexibility. It is compatible with various cementitious materials and can be used in both interior and exterior environments.
Resistance to Hydrolysis: The product’s resistance to hydrolysis ensures that it remains effective even in wet conditions, maintaining its bonding strength and enhancing the longevity of the construction. This makes it ideal for use in environments where moisture exposure is a concern.
Bonding Agent for Cement-Based Mixtures: Soudal SBR Bonding Agent & Primer is ideal for use as a bonding agent in cement-based mixtures such as mortar, screeds, and renders. It enhances the adhesive properties of these materials, ensuring a strong bond to various substrates, including concrete, masonry, and stone.
Admixture for Improved Cement Properties: The bonding agent can be added as an admixture to cementitious materials to improve their water resistance, flexibility, and durability. This is particularly useful in applications where enhanced performance is required, such as in flooring, paving, and roofing.
Rendering and Plastering Applications: The product is highly effective in rendering and plastering applications, where a smooth, workable mix is essential for achieving a high-quality finish. Its plasticising properties ensure better cohesion and consistency, reducing the likelihood of defects and enhancing the overall aesthetics of the finished surface.
Exterior and Interior Use: Soudal SBR Bonding Agent & Primer is suitable for both interior and exterior use, providing reliable performance in a wide range of environmental conditions. It is particularly beneficial in external applications exposed to moisture, where its enhanced water resistance and durability are essential.
Repair and Refurbishment Projects: The bonding agent is ideal for use in repair and refurbishment projects, where it can be used to modify hydraulic binders, repair mortar, or apply new render. Its versatility and high performance ensure a durable and long-lasting finish, even in challenging conditions.
Soudal SBR Bonding Agent & Primer is a versatile and high-performance solution for enhancing the properties of cementitious materials across a wide range of applications. Its unique formulation offers superior water resistance, flexibility, and durability, making it an indispensable tool for both professional contractors and DIY enthusiasts.
Soudal SBR Bonding Agent & Primer is suitable for use on a wide variety of substrates, including concrete, masonry, screeds, plasters, and renders.
The product is designed to enhance the properties of cementitious materials, making it ideal for use in both interior and exterior applications. It is important to ensure that the substrate is sound, clean, dry, and free from dust or loose materials prior to application.
This preparation is crucial for achieving optimal adhesion and performance of the bonding agent. The product is effective on both new and existing substrates, but the porosity, temperature, relative humidity, and material type can affect the performance.
Therefore, conducting a small test on the substrate before full application is recommended to determine suitability and to adjust the application method as necessary.
Proper surface preparation is essential to ensure the best results when using Soudal SBR Bonding Agent & Primer.
All surfaces must be thoroughly cleaned to remove any dust, dirt, grease, oil, or other contaminants that could impair adhesion. For concrete or masonry surfaces, it is advisable to remove any loose or friable material and to repair any large cracks or holes with a suitable repair mortar, such as a 3:1 sand-cement mix gauged with a 1:1 SBR and water solution.
Dampen the surface with clean water before applying the bonding agent to reduce suction and improve bonding. This step is particularly important for porous surfaces that can absorb moisture quickly, potentially weakening the bond.
For pointing applications, mix 1 part SBR, 1 part water, and 5 parts cement.
Apply this mixture by brush directly into the dampened joints, ensuring thorough coverage. This method creates a strong bond and enhances the water resistance of the pointing.
For waterproof renders, first apply a primer coat consisting of 1 part SBR, 1 part water, and 5 parts cement by brush onto the dampened surface.
While this primer coat is still wet, apply a render mix of 3 parts sand to 1 part cement using a gauging liquid composed of 1 part SBR and 3 parts water. The render should be applied at a minimum thickness of 6mm.
Once the first coat has hardened, apply a second coat to a maximum thickness of 6mm. In hot weather conditions, it may be necessary to mist spray the surface regularly to prevent rapid drying and to ensure proper curing of the render.
For floor screeds, the surface should be thoroughly cleaned and free from any dust or loose materials. Repair any large cracks with a 3:1 sand-cement mortar gauged with a 1:1 SBR and water mix. Before applying the screed, dampen the area with clean water to reduce suction.
For screeds between 6-12mm in thickness, use a mix of 3 parts sand to 1 part cement with a gauging liquid of 1 part SBR to 3 parts water.
For screeds between 12-25mm in thickness, use the same sand-cement ratio but with a gauging liquid of 1:1 SBR to water.
This method ensures a strong, durable screed that adheres well to the substrate and resists cracking.
For bonding gypsum plaster, ensure the surface is clean, free from dust, and has sufficient mechanical strength.
Dilute SBR with water at a 1:1 ratio and apply generously to the surface. Allow approximately 10 minutes for the surface to become tacky before applying the plaster coating as normal.
This method enhances adhesion between the plaster and substrate, providing a smooth, durable finish.
After application, all tools and equipment should be cleaned immediately with clean water before Soudal SBR Bonding Agent & Primer dries. If the product has dried on the tools, more vigorous cleaning methods may be required, such as scrubbing with a stiff brush or using a suitable solvent.
To avoid difficulties in cleaning, keep a bucket of clean water nearby during application and regularly rinse tools and brushes to prevent the product from setting on them.
Soudal SBR Bonding Agent & Primer is a versatile product designed for multiple construction and renovation applications. However, the performance of the product may vary depending on the specific conditions of the substrate, including its porosity, temperature, and relative humidity.
It is important to conduct preliminary tests on a small section of the substrate to determine the appropriate application technique and to ensure compatibility and performance. The product should be stored in a cool, dry place to maintain its quality and effectiveness.
Proper handling and storage will ensure that Soudal SBR Bonding Agent & Primer delivers the desired results, providing enhanced bonding, flexibility, and durability for your construction projects.
A) Soudal SBR Bonding Agent & Primer is a high-performance aqueous emulsion made from styrene-butadiene copolymer. It is designed to enhance the properties of cement-based mixtures such as mortar, screeds, and renders. The product improves water resistance, flexibility, durability, and workability of cementitious materials, making it suitable for a wide range of construction applications, including both interior and exterior projects. It acts as a bonding agent, primer, plasticiser, air-entraining agent, and retarding agent, providing versatile functionality for enhancing the performance of various building materials.
A) Soudal SBR Bonding Agent & Primer offers several key benefits, including improved water resistance, which helps prevent water penetration and reduces the risk of damage in moisture-exposed environments. It also enhances the flexibility and durability of cementitious materials, reducing the likelihood of cracking and ensuring long-term structural integrity. The product remains effective in wet conditions due to its resistance to hydrolysis. Additionally, it improves the workability and consistency of cement mixtures, acts as a retarding agent at high temperatures to extend working time, and provides versatile multi-use functionality across various construction applications.
A) Soudal SBR Bonding Agent & Primer improves water resistance in cement mixtures by creating a barrier that reduces the permeability of the cementitious material to water. The styrene-butadiene copolymer in the emulsion forms a film that blocks water penetration, which helps to prevent moisture ingress and subsequent damage. This enhanced water resistance is particularly beneficial in exterior applications or environments exposed to moisture, as it helps maintain the structural integrity and longevity of the construction by reducing the risk of water-induced degradation, such as spalling, cracking, and efflorescence.
A) Yes, Soudal SBR Bonding Agent & Primer is suitable for both interior and exterior applications. Its improved water resistance and flexibility make it ideal for outdoor use, where surfaces are exposed to varying weather conditions and moisture. Simultaneously, it is effective indoors for applications such as rendering, screeds, and mortars. The product’s versatility in different environmental conditions and its ability to maintain performance in wet or dry situations make it a valuable tool for a wide range of construction and renovation projects.
A) Soudal SBR Bonding Agent & Primer can be used on a variety of substrates, including concrete, masonry, screeds, plasters, and renders. It is formulated to enhance the bonding and performance characteristics of cementitious materials, making it suitable for both new and existing substrates. The product is effective on substrates that require improved adhesion, flexibility, and water resistance. For optimal results, substrates should be sound, clean, dry, and free from dust, grease, or loose materials before application.
A) Soudal SBR Bonding Agent & Primer enhances the flexibility of cement-based materials by introducing a styrene-butadiene copolymer into the mixture, which increases the elasticity of the final product. This added flexibility allows the cementitious material to accommodate movement and stress without cracking, which is especially important in applications where the substrate may be subject to thermal expansion, contraction, or mechanical stress. The improved flexibility helps prevent cracks from forming, thereby extending the durability and lifespan of the construction.
A) The plasticising and air-entraining properties of Soudal SBR Bonding Agent & Primer improve the workability and consistency of cement mixtures. As a plasticiser, it reduces the water demand for a workable mix, which enhances the strength and cohesion of the cementitious material. The air-entraining properties introduce tiny air bubbles into the mixture, improving freeze-thaw resistance and reducing the risk of cracking due to expansion and contraction. These properties are particularly useful in rendering and plastering applications where a smooth, workable mix is essential for achieving a high-quality finish.
A) Soudal SBR Bonding Agent & Primer functions as a retarding agent by slowing down the setting time of cement mixtures, even at temperatures exceeding 25°C. This extended working time allows for more precise and controlled application, particularly in hot climates or during peak summer months when rapid drying can pose challenges. By delaying the setting process, the bonding agent enables contractors to work with the cement mixture for longer periods, facilitating smoother and more accurate placement and finishing of the material.
A) Yes, Soudal SBR Bonding Agent & Primer is resistant to hydrolysis, which means it remains stable and effective in wet conditions. Hydrolysis is a chemical reaction that can cause materials to degrade when exposed to water. The resistance to hydrolysis ensures that the bonding agent maintains its performance and durability even in challenging environments, such as areas frequently exposed to moisture or submerged in water. This feature makes it a reliable choice for both interior and exterior applications, particularly in wet or humid conditions.
A) Proper surface preparation is essential for achieving the best results when using Soudal SBR Bonding Agent & Primer. All surfaces should be thoroughly cleaned to remove dust, dirt, grease, oil, or other contaminants that could impair adhesion. For concrete or masonry surfaces, any loose or friable material should be removed, and large cracks or holes should be repaired with a suitable repair mortar. Damping the surface with clean water before applying the bonding agent is recommended to reduce suction and improve bonding, especially on porous surfaces.
A) Yes, Soudal SBR Bonding Agent & Primer can be used for sealing and priming surfaces before the application of cementitious materials. It creates a stable, prepared base that improves adhesion and performance of subsequent coatings or layers. When used as a primer, the product helps seal the substrate’s surface, reducing its porosity and preventing water absorption. This preparation enhances the bonding of mortar, screeds, or renders, ensuring a strong and durable finish that can withstand various environmental conditions.
A) For pointing applications, Soudal SBR Bonding Agent & Primer should be mixed with water and cement in a ratio of 1 part SBR, 1 part water, and 5 parts cement. This mixture is then applied by brush directly into the dampened joints, ensuring thorough coverage. The bonding agent enhances the water resistance of the pointing and provides a strong bond to the substrate, ensuring a durable and long-lasting finish that can resist weathering and moisture ingress.
A) For waterproof renders, a primer coat should first be applied, consisting of 1 part SBR, 1 part water, and 5 parts cement, brushed onto the dampened surface. While this primer coat is still wet, a render mix of 3 parts sand to 1 part cement should be applied using a gauging liquid composed of 1 part SBR and 3 parts water. The render should be applied at a minimum thickness of 6mm. After the first coat has hardened, a second coat should be applied to a maximum thickness of 6mm. Regular mist spraying may be necessary in hot weather to prevent rapid drying.
A) For floor screeds, the surface should be thoroughly cleaned and free from dust or loose materials. Large cracks should be repaired with a 3:1 sand-cement mortar gauged with a 1:1 SBR and water mix. Before applying the screed, the area should be dampened with clean water to reduce suction. For screeds between 6-12mm in thickness, use a mix of 3 parts sand to 1 part cement with a gauging liquid of 1 part SBR to 3 parts water. For screeds between 12-25mm in thickness, use the same sand-cement ratio but with a gauging liquid of 1:1 SBR to water.
A) Yes, Soudal SBR Bonding Agent & Primer can be used with gypsum plaster. To enhance adhesion, the surface should be clean, free from dust, and have sufficient mechanical strength. Soudal SBR should be diluted with water at a 1:1 ratio and applied generously to the surface. Allow approximately 10 minutes for the surface to become tacky before applying the plaster coating as normal. This method improves the bond between the plaster and substrate, providing a smooth, durable finish that is less prone to cracking or delamination.
A) Soudal SBR Bonding Agent & Primer is an aqueous emulsion of styrene-butadiene copolymer, formulated with antioxidant, antifoam, and freeze stability agents. It is a versatile bonding agent and primer that enhances the properties of cementitious materials, such as mortar, screeds, and renders. The product is designed to improve water resistance, flexibility, durability, and workability of cement mixtures. It also acts as a retarding agent at high temperatures, providing extended working time. The product’s resistance to hydrolysis ensures long-term performance in wet conditions.
A) Tools and equipment should be cleaned immediately after use with clean water before Soudal SBR Bonding Agent & Primer dries. If the product has dried on the tools, more vigorous cleaning methods may be required, such as scrubbing with a stiff brush or using a suitable solvent. To avoid difficulties in cleaning, it is advisable to keep a bucket of clean water nearby during application and regularly rinse tools and brushes to prevent the product from setting on them. This helps maintain the condition of the tools and ensures ease of cleaning.
A) To use Soudal SBR Bonding Agent & Primer effectively, ensure that all surfaces are properly prepared by cleaning them of dust, grease, oil, and loose materials. Damping the surface before application can help improve bonding, especially on porous substrates. Follow the recommended mixing ratios for different applications, such as rendering or floor screeds, to achieve optimal results. Regularly mist-spray surfaces in hot weather to prevent rapid drying and ensure proper curing. Conduct a small test on the substrate to determine suitability and adjust application methods as needed.
A) While Soudal SBR Bonding Agent & Primer is a versatile and high-performance product, it does have some limitations. The performance of the product may vary depending on substrate conditions such as porosity, temperature, and relative humidity. It may not be suitable for use on non-cementitious substrates or in applications where extreme chemical resistance is required. It is also important to note that while the product enhances water resistance, it does not provide complete waterproofing, and additional waterproofing measures may be necessary in certain environments.
A) Yes, Soudal SBR Bonding Agent & Primer can be used in hot climates. The product functions as a retarding agent, which helps extend the working time of cement mixtures even at temperatures exceeding 25°C. This extended working time allows for more precise and controlled application, which is especially important in hot climates where rapid drying can pose challenges. The product’s ability to remain effective in high temperatures makes it a reliable choice for construction projects in warm weather conditions.
A) Soudal SBR Bonding Agent & Primer improves the workability of cement mixtures by acting as a plasticiser and air-entraining agent. As a plasticiser, it reduces the water demand for a workable mix, enhancing the strength and cohesion of the material. The air-entraining properties introduce small air bubbles into the mixture, which improves freeze-thaw resistance and reduces the risk of cracking. These properties result in a smoother, more workable mix that is easier to apply and finish, particularly in rendering and plastering applications.
A) Yes, Soudal SBR Bonding Agent & Primer is ideal for repair and refurbishment projects where enhancing the properties of existing cementitious materials is required. The product provides improved flexibility and water resistance, ensuring a durable repair that prolongs the life of the structure. It enhances the adhesion between new and existing materials, making it suitable for use in a wide range of repair applications, such as patching mortar, repairing screeds, or renewing render surfaces.
A) Soudal SBR Bonding Agent & Primer is an aqueous emulsion, which makes it more environmentally friendly compared to solvent-based products. It is formulated with low volatile organic compounds (VOCs), reducing its environmental impact. The product does not contain harmful solvents and is designed to be safe for use in both interior and exterior applications. Proper handling, application, and disposal in accordance with local regulations will help minimise any potential environmental impact.
A) Soudal SBR Bonding Agent & Primer should be stored in a cool, dry place to maintain its quality and effectiveness. The container should be tightly sealed when not in use to prevent contamination or evaporation of the product. It is important to avoid exposing the bonding agent to freezing temperatures, as this could affect its consistency and performance. Proper storage conditions will help ensure the product remains effective for future use.
A) Yes, once fully dried, Soudal SBR Bonding Agent & Primer can be painted over. The product acts as a primer that creates a stable surface suitable for painting. The improved adhesion and reduced porosity provided by the bonding agent enhance the paint's adhesion, resulting in a more uniform and durable finish. It is important to ensure that the bonding agent has dried completely before applying any paint to achieve the best results.
A) The shelf life of Soudal SBR Bonding Agent & Primer typically depends on storage conditions and the specific product batch. Generally, when stored in a cool, dry place with the container tightly sealed, the product can have a shelf life of up to 12 months. It is important to check the product label or consult the manufacturer for specific shelf life information and any additional storage recommendations.
A) Yes, Soudal SBR Bonding Agent & Primer is suitable for use on masonry surfaces. It enhances the adhesion and performance of cementitious materials on masonry, making it an ideal choice for applications such as rendering, screeding, and mortar work. The product’s ability to improve flexibility, water resistance, and durability helps ensure a strong and long-lasting bond between the masonry and the cementitious material.
A) If Soudal SBR Bonding Agent & Primer comes into contact with the skin, it should be washed off immediately with plenty of soap and water. If the product gets into the eyes, rinse thoroughly with water for at least 15 minutes and seek medical attention if irritation persists. It is recommended to wear appropriate personal protective equipment (PPE), such as gloves and eye protection, during application to prevent accidental contact with the skin or eyes.
A) The best way to test the suitability of Soudal SBR Bonding Agent & Primer on a specific substrate is to conduct a small trial application on a discreet area of the substrate. This will help determine the product’s compatibility, adhesion, and performance under the specific conditions of the substrate, such as its porosity, temperature, and relative humidity. Observing the results of the trial application will allow for adjustments to the application technique as necessary to achieve the desired results.
A) Yes, Soudal SBR Bonding Agent & Primer is suitable for use on concrete surfaces. It enhances the adhesion of cement-based materials to concrete, improves flexibility and durability, and provides enhanced water resistance, making it an ideal choice for a variety of applications such as rendering, screeding, and repair work. Proper surface preparation, including cleaning and dampening the concrete, is essential to achieve optimal adhesion and performance.
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