FAQ: What is the difference between resin ‘bound’ and resin ‘bonded’ surfacing?
In our line of work we often run into the question “What’s the difference between ‘Resin Bound’ and ‘Resin Bonded’ Surfacing?”. While we’re happy to explain the difference to our clients face-to-face, we’re sure there are plenty of people out there who may be searching online for the answer.
So, with this in mind we wanted to put together this short explanation of the difference to help those people out!
Resin Bound Surfacing
Resin bound surfacing provides a water-permeable surface when laid on an open grade binder asphalt. The open voids across the surface of the resin bound mixture allow air to flow freely and surface water to filter through the structure, eliminating standing water from surfaces such as driveways and paths.
The smooth surface that comes with resin bound surfacing, is ideal for wheelchair access and durable enough to withstand pressure washing.
Resin Bonded Surfacing
Oppositely to resin bound surfacing, resin bonded surfacing is non-permeable and must be laid on a non-porous fine wearing course asphalt or concrete base. Without the ability to allow water to pass through, drains must be installed to prevent standing water or flooding.
A common mistake that we often hear of is ‘resin bonded’ being used as a generic term for both systems. This can easily be quite misleading, especially since each system produces very different results.