Renderer's Grit Render Bonding Agent

Bostik Renderer’s Grit has been specially developed for the rendering professional. Previously called Renderer’s Stabilising Primer, it primes and stabilises most exterior surfaces to give extra grip prior to the application of new render.

It can be applied straight from the bucket onto previously rendered walls, as well as other porous and non-porous surfaces including brick, blocks, concrete, render and plaster. When rendering externally it removes the need for initial scratch coats, only receiving render is required. The grit suspended in the product provides an excellent mechanical key.

Renderer’s Grit can also be used on internal shiny surfaces such as sound, well adhered ceramic tiles before plastering. Bostik Renderer’s Grit is coloured grey to show uniform coverage and only one coat is required using a short pile roller or soft brush to provide an even key for render. It gives a more uniform surface that dries evenly, providing excellent adhesion and a faster, easier finish. It reduces suction on porous surfaces, allowing a consistent rendering working time and reducing the risk of cracking.

Unlike other render bonding agents, there’s no mixing required before use and an evenly distributed key is achieved when applied to the wall, which provides a much-improved substrate for rendering.