Do resin bound driveways need sealing?

No. In a resin bound system every stone is coated with resin in a forced action mixer before it is laid, so the binder is distributed through the full depth of the surface rather than painted onto the top. There is no bare aggregate for a sealer to protect and no jointing sand to hold in place. A sealer would sit as an extra film on top of a surface that is already bound, which is why the manufacturers of these systems do not specify one.

What happens if you seal a resin bound driveway?

Three things, none of them good. The film bridges the voids between the stones and reduces the permeability that allows rainwater to drain through, it changes the surface texture and usually makes the driveway more slippery when wet, and it wears off unevenly over a couple of years leaving patchy shiny areas that are difficult to correct. Some resin manufacturers also treat an applied coating as a modification that ends the guarantee.

Is resin bonded different from resin bound when it comes to sealing?

Yes, and this is where most of the confusion starts. Resin bonded is made by spreading adhesive onto a base and scattering dry stone over it, so only the bottom of each chipping is stuck down and the top faces are exposed. That surface loses chippings over time and is sometimes recoated. Resin bound is a different product entirely, with the stone mixed through the resin before laying, and it is not treated the same way.

Someone knocked at the door offering to reseal my resin driveway. Should I?

Treat it as a warning sign. Cold callers offering to seal, refresh or restore driveways are a long-standing pattern, and the pitch usually involves cheap leftover material and pressure to decide today. If your resin bound driveway is fading, dull or shedding stone, the fix is a proper diagnosis of why, not a coating over the top. Ask the original installer first, and never pay a deposit at the door.

How often should a resin driveway be cleaned in Lincoln?

A brush down every few weeks and one thorough wash a year is enough for most Lincoln driveways. Frontages that face north or sit under trees, which describes a lot of the older streets in the West End and up around Burton Road, tend to grow more green film and benefit from a moss treatment in autumn as well. Keep pressure washing gentle and hold the lance well back, because damage from over-enthusiastic washing is far more common than damage from weather.

Do Resin Driveways Need Sealing? A Straight Answer for Lincoln Homeowners

Ask five driveway companies whether resin needs sealing and you may well get five different answers, which tells you something about how the question is being used. Sealing is a genuine, necessary process for some surfaces and a solution looking for a problem on others, and resin bound falls firmly in the second group. We get asked about it most weeks in Lincoln, usually by someone who has either had a leaflet through the door or read advice written about a completely different product. The short version is that a correctly installed resin bound driveway is sealed already, in the sense that matters, by the way it is made. The longer version is worth understanding, because knowing why also tells you what to say when somebody offers to sell you a coating.

Golden resin bound driveway with block paved edging at a Lincoln home

What sealing means on a driveway

A sealer is a liquid coating brushed, rolled or sprayed onto a finished surface, where it soaks into the pores or forms a film on top. Depending on the product it is there to repel water, block staining, lock loose material in place or wet the colour so the surface looks darker and richer. All useful jobs. All of them jobs that assume the surface has a gap the coating fills.

Sealer tins, brushes and rollers of the type used to coat driveway surfaces

Porous concrete stains, so you seal it. Block paving loses jointing sand, so a sealer holds it. Imprinted concrete fades and shows its surface colour hardener, so it gets recoated every few years. The question to ask about any surface is not “should this be sealed” but “which of those weaknesses does it actually have”.

Why a resin bound surface has nothing to seal

A resin bound driveway is made in a forced action mixer on site. Dried aggregate goes in, a two-part resin goes in, and the machine coats every individual stone before the mix is barrowed out and trowelled to depth. The binder is not on the surface, it is through the surface, all the way down to the base.

Close view of natural aggregate of the kind bound in resin for a Lincoln driveway

So there is no exposed stone face waiting to be protected, no sand to wash out of joints, and no thin decorative layer to fade off the top. Colour comes from the aggregate itself, which is natural stone and does not fade the way a pigment does. The resistance to oil and salt comes from the resin already coating each particle. Modern systems use UV stable resin specifically so the binder holds its colour outdoors without help. If you want the detail on how the layer is built and what sits underneath it, our resin bound driveways page walks through the full construction. Adding a sealer on top of all this does not reinforce anything. It just puts a film over a finished surface.

Where the confusion comes from

Almost every piece of “you must seal your driveway” advice online is about a different material, and it gets applied to resin by accident. Three surfaces are responsible for most of it.

Block paving surface of the kind that genuinely benefits from sealing

Block paving is the big one, and sealing it is legitimate: the sealer stabilises the kiln dried sand in the joints and slows weed growth. Pattern imprinted concrete is the second, and it genuinely does need recoating on a cycle because its colour lives in a thin surface layer. The third is resin bonded, which sounds almost identical to resin bound and is not the same thing at all. Bonded work is made by spreading adhesive over a base and broadcasting dry chippings across it, so the tops of the stones are never coated. It looks sharper when new, sheds stone over time, and is sometimes recoated as a result. When somebody tells you resin driveways need sealing, they are usually thinking of one of these three, and quite often they genuinely do not know the difference.

The permeability problem

There is one consequence of sealing that matters more than appearance. A resin bound surface laid over an open-graded base is permeable, meaning water passes through the voids between the stones rather than running off into the road. That is why most Lincoln front driveways can be replaced without a planning application.

Cast iron drainage grate set into a hard surface to carry away rainwater

Coat that surface and you start bridging the voids. Do it thoroughly and you have effectively converted a permeable driveway into an impermeable one, which changes where the water goes and, if the frontage is more than five square metres with no soakaway or border to drain onto, changes your planning position too. The Planning Portal guidance on paving a front garden sets out the thresholds. It is an odd outcome to pay for: several hundred pounds to make your driveway drain worse and to move it out of permitted development.

Lincoln water, shade and the green film

What people are usually reacting to when they start researching sealers is not a fault in the resin at all. Of the calls we take in Lincoln about a driveway that has stopped looking its best, most come down to one of two local things: white marks after washing, or a green tinge across the shadier half of the drive.

Moss and algae growing in the joints of a shaded paved surface

Lincoln sits on limestone and the mains water here is hard, so a driveway washed down on a hot afternoon can dry with a faint mineral bloom on it. That is limescale from the tap, not damage to the surface, and it clears with a rinse or the next decent shower. The green film is a different story and it is about aspect rather than material. North-facing frontages in the West End terraces, the shaded side of the older Burton Road properties and anywhere under a mature lime or sycamore will grow algae on any surface you put down. Sealing does not prevent it, because the algae grows on top of whatever is there. A moss and algae treatment in autumn does, and it costs a fraction of a coating.

What actually keeps a resin drive looking new

Maintenance on a resin bound driveway is genuinely light, which is most of the reason people choose it. It is not zero, though, and the small habits matter more than any product you can buy.

Sweeping fallen leaves and debris from a paved driveway with a stiff brush

Sweep leaves off before they sit and rot, especially through October and November, because decaying leaf matter is what feeds the green growth people later blame on the surface. Wash once a year with water and a mild detergent. If you pressure wash, keep the pressure moderate, use a fan nozzle and hold it a good distance back rather than gouging at one spot. Deal with spills reasonably promptly. And leave the surface alone otherwise. We go through the seasonal routine in more detail in our guide to cleaning and maintaining a resin driveway in Lincoln, and the striking thing about that list is how short it is.

If someone offers to seal your driveway

Doorstep offers to seal, restore or refresh a driveway are common enough across Lincolnshire to be worth naming. The pitch tends to follow the same shape: the caller happens to be working nearby, has material left over, notices your drive looks tired and can do it today for cash at a discount that expires this afternoon.

Tradesman in high visibility clothing holding a clipboard at a front door

Ask three questions and the conversation usually ends by itself. Which product are you applying, and can I see the data sheet? Is my driveway resin bound or resin bonded, and how can you tell from where you are standing? Will this affect the manufacturer’s guarantee on the system that was installed? A contractor who works with these materials answers all three without hesitating. It is also worth checking whether the resin system on your drive holds a certificate from the British Board of Agrément, because certified systems come with defined installation and maintenance requirements that a random coating is not part of. Whatever you decide, do not pay a deposit at the door.

When a surface treatment does have a place

To be fair to sealers, there are narrow cases where a treatment on resin makes sense, and pretending otherwise would be as unhelpful as the leaflets. An anti-slip additive can be specified in the resin itself on a steep drive, and there are plenty of steep frontages on the slopes below the cathedral where that is a sensible conversation to have at the quote stage rather than years later.

Similarly, an older resin bonded surface that is shedding chippings can reasonably be recoated as a holding measure while you decide what to do properly. What none of these cases involve is a healthy resin bound driveway being coated because a stranger said it should be. If your drive looks tired and you are not sure why, the useful next step is finding out the cause. Send us a photograph and we will tell you what you are actually looking at. Get a free quote in Lincoln.