Resin bound surfacing and resin bonded surfacing are often mistaken for the same systems but look different, feel different and provide very different properties.
Both systems use a mixture of aggregates and resin and are used to provide a slip resistant, hard wearing decorative finish. There are many differences between the systems. The bonded system is a scatter of stone onto a layer of resin that’s been applied to the surface. The bound system is a much thicker layer trowelled onto the prepared existing surface.
The use of resin and aggregates mixed together and laid as a seamless carpet of natural products, bound and fully encapsulated in a liquid resin is called Resin Bound. Generally, aggregates or gravels are mixed with resin and hardener. The mixed material is then taken from the mixer, poured on to the surface, raked out and then finished with a trowel to leave a flat surface to a thickness of 12-40mm thick, depending on the application and traffic. The resin bound surfacing is to provide a slip resistant decorative surface which is highly water permeable.
This beautiful system can be overlaid to existing or new concrete or tarmac. The open matrix allows water to drain through to the base, eliminating water ponding and allowing water to drain to planted areas or land drains. The surfacing may be applied to SuDS compliant bases and sub-bases, reducing the impact of urban development on flood risk and allowing water to flow into water courses. When installed on to a SuDS compliant base the Resin Bound Surfacing system can allow up to 500 litres to permeate through every m2 per minute. The resin bound aggregate system (also referred to as permeable paving) is ideal for decorative driveways, car parks and pathways as well as swimming pool surrounds. It is fully permeable, complying with SuDS regulations.
Resin bonded surfacing is also known as a scatter system. It involves mixing the resin with a drill and paddle and pouring it on to the surface. The resin is then spread out using a roller, trowel or notched squeegee to a typically thickness of 1mm. The aggregate is then broadcast over the top of the resin ensuring complete coverage. Resin bonded systems are non-porous.
The resin bonded surfacing system is suitable for domestic, commercial and industrial use. It offers decorative paving and high slip resistance making it practical and aesthetic. It is ideal for use on pathways and car parking bays