What is the difference between resin bonded and resin bound driveways?

Whatever the location, for business or home, a driveway needs to take a lot of wear and a lot of use as well as withstand the varied temperatures and elements of our country’s weather.

The materials used in constructing driveways reflect modern technological progress, and there is now a choice between resin bonded and resin bound construction, both offered by companies like Thortech. These two materials offer considerable advantages over block paving or concrete; they are both hard wearing, both are flexible, and both require low levels of maintenance, making them both good choices for the construction of driveways.

There are differences between resin bonded and resin bound.


Resin bound surfaces are composed of tough, flexible resins mixed with abrasive resistant aggregate. Aggregate is sand, crushed stone, or gravel. Aggregate can be formed using re-cycled materials and is therefore eco-friendly. The combination of aggregate and resins provides a tough, durable surface that resists salt, water, oil and the elements. The fact that it is flexible means that it can be laid very easily over existing hard and uneven surfaces. The aggregate is pre-mixed with resin and then cold poured onto a surface, and finished by hand trowel for a smooth finish. One of the huge advantages of using resin bound surfacing materials is that it cures, or dries, very quickly; often it is only a matter of hours before the surface has dried, stabilised, and is ready for use. The resin will usually be resistant to the destabilising effects of ultra violet light. Resin bound surfaces are ideal for not just pedestrians and motor vehicles but wheelchairs, prams and buggies. The surface is very tough and cleaning can be accomplished through pressure washing as the surface is tough enough to withstand it. The surface is also permeable which means water will go through it rather than sit on the top.


Resin bonded surfaces are similarly composed of aggregate and resins; the difference is that the resin is laid on a suitable surface and then aggregate is scattered over it loose; when the resin dries, the aggregate adheres to it. When the loose aggregate is removed, the resin bonded surface has the appearance of a loose gravel driveway. Maintenance is again low but over time the aggregate particles may loosen so it is not so durable. Resin bonded surfaces need to be laid on a suitable surface such as a non porous asphalt or concrete. Resin bonded surfaces are coarser in texture than resin bound, and are porous, which means that course drains and soak-aways must be installed to prevent water build up. The variety of aggregate available gives a wide range of choices for the customer to personalise their driveway and ensure that it offers the texture and colour they choose to enhance their home. Both varieties of resin and aggregate surfacing can be layered without seams, and in a limitless number of shapes, even in decorative patterns.

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