Rockcote Polymer Render Grey is a flexible, acrylic-based coating designed for use on substrates like fibre cement and painted surfaces, where movement tolerance and strong adhesion are essential. It requires no on-site mixing and can be applied in layers up to 4mm thick for substrate leveling. The render finishes with an appealing coarse texture when sponged, making it an ideal base for overcoating with Rockcote topcoats.