What is the difference between resin bound and resin bonded?

Both resin bound and resin bonded are modern surfacing techniques that use resin as a binder, but they produce quite different results in appearance, drainage, and durability.

Resin bound involves mixing aggregate (small stones or gravel) thoroughly into liquid resin before application. This creates a uniform, smooth surface with the stones distributed evenly throughout the depth of the layer. The finished surface is permeable, allowing water to drain through it into a prepared base, which makes it popular for meeting drainage regulations in areas like Cheltenham where water management matters for landscaping schemes.

Resin bonded works differently. Resin is applied to the surface first, then aggregate is broadcast or scattered across the wet resin. Only the top layer of stones bonds to the resin, while the layer itself remains non-permeable. This creates a more textured, exposed-stone appearance and requires traditional drainage solutions like gutters or falls to direct water away.

The choice between them depends on your needs. Resin bound suits properties where drainage compliance is essential and a sleek, even look is preferred. Resin bonded works well where surface grip and visual texture are priorities, though it may need careful installation to ensure proper water management. Both offer durability and aesthetic appeal compared to tarmac or concrete alternatives.

For local contractors offering these finishes in Cheltenham, check resin-bound surfacing providers.