Resin Driveway in Sherborne

While resin bound and resin bonded driveways have similar names, it might surprise you to know that they’re very different. Both paving systems use resin and aggregates (stones) to form a fixed surface, but there are plenty more differences than there are similarities.

Resin bound driveways are made from a resin and aggregate mix that is trowelled onto a bitmac or concrete base. It leaves a smooth, flat finish and you won’t find any loose gravel. It’s also a pourous surface, which means that rainwater can pass through into the ground, avoiding pools and flooding.

However, resin bonded driveways involve spreading resin across a base, then scattering aggregate into it. Most of the stones will stick to the resin, but some will stay loose. That means you’ll get the effect of loose gravel without so much to sweep and take care of. Because the stones are scattered onto a complete layer of resin, water can’t pass through it. That means you could end up with water pooling, and it also means that a resin bonded driveway isn’t frost resistant, meaning it could get slippery.

So which is better – a resin bound or resin bonded driveway? The answer depends on a few things. If you have a period property where a smooth, shiny surface might not complement the look of your home, you might want to go for resin bonded. If you need lots of grip, for example if you’re a wheelchair user, resin bonded may also be the way to go – even though resin bound surfaces still offer enough grip for sloped driveways and ramps. But if you want a low-maintenance, weed-free, permeable surface, resin bound driveways are the way to go.

Resin bound driveways are known to last a long time without the need for repairs, but sometimes accidents happen. You also need to make sure you regularly maintain your driveway by sweeping and power washing it to prevent damage. But if it does get damaged, how do you repair your resin bound driveway?

If you notice a crack in your resin bound driveway, it’s important to repair it as soon as possible. If you leave it to erode, you could end up with a difficult repair that will cost much more money.

To repair a crack, you’ll need to carefully chisel it open slightly so you can apply a primer then fill in the crack with a matching-coloured resin and aggregate mix. While there are variations in colour and size with all stone mixes, usually it’s easy to find a batch that matches almost perfectly. And once the crack has been repaired for a while, it will blend in seamlessly with the rest of your driveway.

To prevent cracking in your resin bound driveway, it’s best to tackle the issue at initial installation. Speak to your installer about whether it’s possible to add fibreglass mesh to the base. You should also ask your installer to add expansion trims as these will significantly reduce the risks of cracks.

So the best way to repair resin bound driveways is to prise open the crack and fill it in. It might seem simple, but getting the right colour match is something that should be left to the professionals, so get a few quotes to ensure you get the best finish.

1. Prepare the base If you want your resin bound driveway to last a long time, you need to ensure that you prepare the base properly. Remove any block paving, grass or soil and dig down until you hit solid ground. Lay a sub-base of asphalt for good permeability. If you’re laying over the top of your current driveway, make sure that all cracks are increased into a ‘v’ shape with a saw and ensure the surface is dry and weed-free.
2. Mix the resin You must follow the instructions on the materials you have to the letter if you want the curing process to work. Usually batches come in ‘Part A’ and ‘Part B’. Keep the resin container secure and on a protective surface to avoid splashing, then mix Part A for 10-20 seconds at a slow speed with a helical bladed mixer. Add Part B and mix thoroughly at a slow speed for about 2 minutes until it’s blended together.
3. Mix the dried aggregates and sand with the resin Place a quarter of the aggregates into a mixer, then add the pre-mixed resin and start a stopwatch. You should then add the rest of the aggregates before slowly adding the sand. When you’re happy with that mix, stop the stopwatch. That time is the time that you need to spend mixing any other resin and aggregates to avoid colour variation.
4. Lay the mix on the surface Transfer the mix to the work area then plan a laying route. When the mix is laid out, use a very clean trowel to spread the mix. Clean it regularly during the process to avoid dragging aggregates out of place. Once the aggregates stop moving in a fluid movement and become solid, stop trowelling. Then you can polish the surface to give it an attractive shine.