The EVERBUILD 507 Rendagrip, of 10 litres is an extra-grip render bonding agent containing a fine aggregate to provide an improved key, before applying render on external surfaces e.g., concrete, lightweight blockwork, brick etc. The fine aggregates are suspended in a unique waterproof polymer to ensure easy application by roller, or brush, and an even spread of aggregate avoiding any weak spots in the key coat, or the aggregate particles coming loose during application. The 507 Rendagrip reduces the porosity/suction of the base substrate, providing a mechanical key from the fine aggregate suspended within the product. Rendagrip can be used as a bonding agent for render to concrete, brickwork, blockwork etc. and as a bonding agent to improve adhesion to smooth surfaces. After one coat application Rendagrip can render when dry, where the red colour indicates coverage, and can be applied to damp surfaces. Specifications Colour Red. Size 10L.