Looking after a freshly sealed driveway on the Central Coast.

The first 72 hours.

Light foot traffic after 24 hours, a car after 48 to 72 hours, and no sharp turning for a week. Penetrating silane and siloxane sealers are quicker because they soak in rather than forming a film, they are usually rain-safe within about six hours. Topical acrylics and polyurethanes need the full 72 hours before a warm tyre touches them, and they are the ones that get scuffed by an impatient three-point turn on day two. We will tell you which product went on your slab and give you the actual number for it, not a generic one.

Two things people do in those 72 hours that cost them the coat: they let the dog out onto it, and they put the wheelie bin back. Paws and a loaded bin wheel both leave marks in an uncured film that never come out.

Hot tyre pickup: the big one.

Hot tyre pickup is when a warm tyre grips a topical sealer that has not fully hardened and lifts it off the slab, leaving two bare patches shaped exactly like your tyres. It is the single most common way a good seal gets ruined on the Central Coast, because people park a car that has just driven back from Sydney up the M1 onto a three-day-old coat. Sixty minutes on the freeway puts real heat into a tyre.

Avoid it by keeping the car off for the first week, and after that by parking a hot car in the shade or letting it cool for twenty minutes before it sits. Penetrating sealers cannot suffer from it at all, which is one more reason we default to them on plain concrete, as covered on our concrete sealing page.

Do not put anything flat on it.

For the first month, keep cardboard, plastic sheeting, rubber mats, pot plants and jack stands off a topically sealed slab. A film sealer is still releasing solvent for weeks after it looks dry, and anything laid flat traps that solvent underneath and leaves a permanent pale ghost of itself. We have seen a perfect job carrying the outline of a moving box for the life of the coat.

How to clean it, and what never to use.

A soft broom, a pH-neutral cleaner and a garden hose handles almost everything. If you use a pressure washer, keep it under about 1,500 psi with a 25 to 40 degree fan tip held well back, and never use a turbo nozzle. High pressure at close range strips a topical sealer as effectively as any paint stripper, and we get called to plenty of driveways where the owner cleaned the seal straight off the concrete and then wondered why it stopped beading.

The never list is short and it is absolute:

• Acid washes. They eat the sealer and etch the concrete underneath.
• Chlorine and pool salt. Bad news generally, and a real issue on the poolside driveways at Green Point and Kincumber where backwash runs across the slab.
• Petrol, thinners, brake cleaner. Solvents dissolve a film sealer on contact.
• Wire brushes and steel scrapers. Obvious, but people still attack a stain with them.
• Bleach on moss. It works for a fortnight, damages the coat, and the moss comes back because the cause was moisture, not the moss.

The free thing that matters most near the beach.

If you live near the water, do one extra thing and it costs nothing: give the driveway a plain fresh-water rinse every month or so. Onshore salt spray settles on a beachfront driveway at Terrigal, Wamberal or Umina continuously, and even a good sealer is only slowing the chloride down, not stopping it. Hosing the salt off before it accumulates is the cheapest thing you can do to extend the life of the coat, and it costs five minutes. A slab a few kilometres back in the Wyong valley does not need this at all.

Leaf litter is not cosmetic.

Under a mature spotted gum or a jacaranda, leaf litter left sitting on a damp slab leaches tannin, and tannin will tea-stain even through a worn topical coat. Blow or sweep the driveway after a big drop rather than letting it compost in place over a wet fortnight. Same with the pile of clippings after you mow. This is the whole reason a sealed driveway under trees still looks better than a bare one after ten years: the stains sit on top long enough for you to get to them.

Paver driveways have one extra job.

If you have pavers, check the joints once a year. A joint-stabilising seal locks the sand, but if you have washed sand out with a pressure washer or a downpipe is discharging across the joints, top it up and reseal that section before pavers start rocking. Rocking pavers chip their own edges, and a chipped paver is a replacement, not a repair. See paver sealing.

Fix spills the same day.

The point of a seal is that you get a window. Oil, brake fluid, red wine and bin rust all sit on the surface for a day or two instead of wicking in immediately. Use that window. Absorb the bulk with kitty litter, then wash with a pH-neutral cleaner. Do not reach for the degreaser bottle unless you have to, and if you do, rinse thoroughly and expect that spot to need attention at the next coat. Under the Protection of the Environment Operations Act 1997 that degreaser runoff must not reach the stormwater system either, and on this coast stormwater goes to Brisbane Water and Tuggerah Lakes.

When is the next coat due?

On the Central Coast, expect roughly five to seven years from a penetrating seal a few kilometres back from the water, three to five years on the beachfront, and two to four years from a topical decorative or wet-look coat anywhere near salt air. Do not go by the date though, go by the water-drop test: tip a cup of water on it, and if it stops beading and starts soaking in, it is due, whatever the calendar says. There is more on this in our reseal frequency guide and the early tells are listed on our warning signs page.

What a maintenance coat costs.

The good news about looking after it properly is that the next job is a fraction of the first one, because the prep is the expensive part.

Worked example. A 60m² Erina plain concrete driveway, sealed on time and rinsed occasionally. At 2026 rates the reseal is a light pressure clean at $3 to $7 per square metre plus a penetrating coat at $6 to $11 per square metre: roughly $540 to $1,080, one day. The same driveway left until it is scaled and moss-bound needs a moss and lichen treatment at $3 to $8 per square metre, crack repairs at $25 to $90 each and heavier prep before it can take anything, and if the surface has gone it is a resurface at $45 to $90 per square metre, so $2,700 to $5,400. Aftercare is not fussiness, it is the difference between a $700 job and a $4,000 one. Full rates are on the pricing page, and timing your coat is covered on our seasonal guide.

Aftercare questions.

How long before I can drive on a newly sealed driveway?

Light foot traffic after 24 hours, a car after 48 to 72 hours, and no sharp turning for a week. Penetrating silane and siloxane sealers are quicker because they soak in rather than forming a film, they are usually rain-safe within about six hours. Topical acrylics and polyurethanes need the full 72 hours before a warm tyre touches them, and they are the ones that get scuffed by an impatient three-point turn on day two.

What is hot tyre pickup and how do I avoid it?

Hot tyre pickup is when a warm tyre grips a topical sealer that has not fully hardened and lifts it off the slab, leaving two bare patches shaped exactly like your tyres. It is the single most common way a good seal gets ruined on the Central Coast, because people park a car that has just driven back from Sydney onto a three-day-old coat. Avoid it by keeping the car off for the first week, and after that by parking a hot car in the shade or letting it cool before it sits. Penetrating sealers cannot suffer from it at all.

How should I clean a sealed driveway?

A soft broom, a pH-neutral cleaner and a garden hose handles almost everything. If you use a pressure washer, keep it under about 1,500 psi with a 25 to 40 degree fan tip held well back, and never use a turbo nozzle. High pressure at close range strips a topical sealer as effectively as any paint stripper. Avoid acid washes, chlorine, petrol, paint thinners and stiff wire brushes entirely.

Do I need to do anything different if I live near the beach?

Yes, one thing, and it is free. Give the driveway a plain fresh-water rinse every month or so. Onshore salt spray settles on a beachfront driveway at Terrigal, Wamberal or Umina continuously, and even a good sealer is only slowing the chloride down, not stopping it. Hosing the salt off before it accumulates is the cheapest thing you can do to extend the life of the coat, and it costs nothing but five minutes.

When does a sealed driveway need its next coat?

On the Central Coast, expect roughly five to seven years from a penetrating seal a few kilometres back from the water, three to five years on the beachfront, and two to four years from a topical decorative or wet-look coat anywhere near salt air. Do not go by the date though, go by the water-drop test: if water stops beading and starts soaking in, it is due, whatever the calendar says.