Rockcote Polymer Render Fine is a flexible, acrylic-based coating designed for use on substrates like fibre cement and painted surfaces, where movement tolerance and strong adhesion are crucial. It requires no additional on-site mixing and can be applied in layers up to 4mm thick for substrate leveling. The render achieves a visually appealing coarse finish when sponged and is perfect for overcoating with Rockcote topcoats.