Permeable resin paving is porous, allowing water to permeate/percolate through the surface and beyond when a suitable base build-up configured for SuDS has been installed.
Permeable resin paving systems use a mixture of binders with gravel or other aggregates. The difference between bound and bonded surfacing lies in the application process. With resin-bound surfacing, the aggregate and resin are mixed together before application to the substrate. With resin bonded surfacing, the aggregate is scattered onto a pre-applied resin base.