Resin bound and resin bonded are easy to mix up, and plenty of quotes use the terms loosely. They are not the same product. The difference is whether the stone is mixed into the resin, or scattered on top of it, and that changes how the surface looks, drains and lasts.
The Short Answer
In a resin bound surface, the stone is mixed with resin before it is laid, then troweled flat. Every stone is coated and locked in, the finish is smooth, and water drains through it. In a resin bonded surface, a layer of resin is spread on the base first and loose stone is scattered over the top. Only the stones touching the resin stick. The finish is rougher and gravel-like, and water does not drain through it.
Side-by-Side Comparison
| Factor | Resin bound | Resin bonded |
|---|---|---|
| How it's made | Stone and resin mixed together, then troweled onto the base | Resin spread on the base, then loose stone scattered on top |
| Finish | Smooth, level and seamless | Textured, looks like loose gravel |
| Loose stones | None once cured, every stone is bound | Excess stone is swept off, and some can come loose over time |
| Drainage | Permeable, water passes through to the base | Not permeable, water runs off the surface |
| Depth | A full layer, typically 18mm for driveways using 6mm stone | A single stone thick on a thin resin coat |
| Underfoot | Comfortable for bare feet | Rougher, more like gravel |
| Best suited to | Driveways, paths, patios and pool surrounds | Areas where a gravel look and surface grip are the priority |
How Each One Is Laid
Resin bound is mixed on site in a forced action mixer, with kiln-dried stone and a two-part resin combined in set quantities. The mix is spread onto a sound base and hand troweled to a flat, even finish. Our how to lay resin bound guide walks through each stage.
Resin bonded starts with a coat of resin over the base. Stone is broadcast over the wet resin, left to cure, and the loose excess is swept away. What's left is one layer of stone held only at its base.
Drainage
This is the biggest practical difference in WA. Resin bound has small gaps between the coated stones, so rain soaks through to the base instead of pooling or running off. Resin bonded seals the surface with resin, so water runs across it like any other hard surface. If drainage or stormwater matters on your site, resin bound is the one to look at.
Loose Stones and Wear
Because every stone in resin bound is coated and locked into the mix, there's nothing loose to kick about, track inside or scratch a car. With resin bonded, the stones are only held where they touch the resin, so some can work loose with traffic and turning tyres over time.
Which Should You Choose?
For most Perth driveways, paths, patios and pool surrounds, resin bound is the better fit: smooth, permeable, no loose stones, and a wide choice of blends. Resin bonded can suit a feature area where you specifically want a loose gravel look with extra grip. Whichever you're considering, ask your installer exactly which system they're quoting.
Where Vuba Fits In
Vuba Surfaces WA supplies resin bound systems: UV-stable binders, kiln-dried aggregates, tools and installer training. If you're a homeowner, enquire for an install and we'll connect you with a certified installer. If you're a tradesperson, see our installer training.
Frequently Asked Questions
What is the difference between resin bound and resin bonded?
In resin bound, stone is mixed with resin and troweled flat, giving a smooth, permeable surface with no loose stones. In resin bonded, loose stone is scattered onto a resin coat, giving a textured, gravel-like surface that is not permeable.
Which is better for a driveway?
For most driveways resin bound is the better choice, because it's smooth, permeable and has no loose stones to scatter or catch tyres.
Is resin bonded permeable?
No. The resin layer seals the surface, so water runs off rather than draining through.
Is resin bound permeable?
Yes. Water passes through the gaps between the coated stones to the base below.
Does Vuba supply resin bonded systems?
Vuba Surfaces WA specialises in resin bound systems. If you're unsure which system suits your project, call us on 0480 743 731.