What is resin bound surfacing?

Resin bound surfacing combines small stone aggregate, typically granite or quartz chippings, with a clear polyurethane or epoxy resin binder. The mixture is trowelled onto a prepared base to create a smooth, uniform finish that binds the stones together while allowing water to drain through.

The key advantage is permeability. Because water passes straight through the surface rather than pooling on top, resin bound driveways comply with Sustainable Drainage Systems (SuDS) requirements in the UK. The finish is non-slip when properly installed, resists UV damage (if the resin is UV-stable), and avoids the gravel scatter common with loose stone. Once cured, it requires minimal ongoing maintenance beyond occasional light cleaning.

Resin bound differs from resin bonded, where aggregate is applied to a wet resin layer on existing tarmac or concrete. Resin bound is laid fresh over a sub-base, creating a thicker, more durable system. The depth and density of the resin bound layer make it suitable for high-traffic driveways and car parks, whereas resin bonded is thinner and typically serves as a decorative upgrade to existing hard surfaces.

Installed correctly, resin bound typically lasts 15 to 20 years. Quality depends on base preparation, resin choice, and skilled trowelling to avoid surface pitting. Find local contractors in Cheltenham who specialize in this method.