Bostik Cementone SBR is a high-quality, multi-purpose bonding agent that primarily strengthens and waterproofs mortar mixes. This 25 litre container is specially designed to enhance the properties of cement-based mixes, making them highly resistant to water, heat and frost. Ideal for use in construction projects such as rendering, screeding or pointing brickwork, Bostik Cementone SBR improves adhesion and durability of the mix while reducing shrinkage and cracking.