Cembloc Cembond SBR Primer (1L) is an emulsion-based primer formulated with styrene-butadiene, offering outstanding adhesion to a wide range of surfaces, including fibre cement, concrete, brickwork masonry, renders, and steel. This primer is designed to provide exceptional waterproofing and weather resistance, making it ideal for both interior and exterior applications.
Cembond SBR is particularly beneficial for waterproofing basement structures, serving as an underlayment for levelling screeds, creating wear-resistant flooring, and aiding in concrete repairs. When used as an admixture, it significantly enhances flexibility, tensile strength, and reduces shrinkage in cementitious mixes. This improved flexibility helps accommodate movements and minimise cracking, especially in substrates that may experience slight shifts or vibrations.
For optimal results, when priming porous surfaces like fibre cement, concrete, or brick, it is essential to dampen them thoroughly with clean water just before applying Cembond SBR. Ensure no standing water is present. For timber surfaces, it is recommended to seal them with Cembond SBR. The priming slurry should be applied using a brush or roller, ensuring thorough scrubbing onto the surface to achieve complete substrate coverage.
Cembond SBRs application is straightforward and user-friendly. The emulsion-based formulation allows for smooth and consistent application, ensuring complete coverage of the substrate. It should be stored in a cool, dry place, protected from freezing and excessive heat, with a shelf life exceeding 12 months when stored properly.
Key Benefits:
Excellent Adhesion: Bonds effectively to fibre cement, concrete, brickwork, masonry, renders, and steel.
Waterproofing Properties: Creates a robust barrier against water penetration.
Weather Resistance: Suitable for exterior use, withstanding rain, UV radiation, and temperature fluctuations.
Enhanced Flexibility: Improves the flexibility of cementitious compounds, reducing the risk of cracking.
Increased Tensile Strength: Strengthens cementitious mixes, enabling them to bear greater loads.
Reduced Shrinkage: Minimises shrinkage during the curing process, enhancing structural integrity.
Easy Application: Can be easily brushed or rolled onto surfaces for complete coverage.
By leveraging these advantages, Cembond SBR primer significantly contributes to the improved performance, durability, and longevity of coated surfaces or constructed elements, making it a valuable choice for various construction and maintenance projects.
