Patio Sealer – Water-based Paving & Patio Sealant
A water-based patio sealer that protects without changing the look of your paving. This impregnating sealer soaks into natural stone, concrete and other porous surfaces, so they strongly repel water, oil and grease — guarding against staining and frost damage, indoors or out.
- Natural finish — minimal change to colour or texture
- Repels water, oils and grease
- Protects against frost damage and staining
Free expert advice · Fast UK delivery · 01257 266696
£57.64
A good patio sealer protects your paving without changing how it looks. NCC Water-based Paving & Patio Sealer is an impregnating patio sealant that soaks into the surface rather than sitting on top of it. As a result, your stone keeps its natural colour and texture, while gaining strong protection against water, oil, grease and frost.
Why seal your patio?
Most natural stone and concrete paving is porous. So it absorbs water, and with it dirt, oil, food and drink spills. Over winter, absorbed water freezes and expands, which can damage the surface.
Sealing closes that door. A sealed patio resists staining, sheds water, and is far easier to clean — which means it keeps looking good for longer with less work.
Where to use this patio sealant
- Natural stone paving — sandstone, limestone, granite, slate and marble
- Reconstituted stone, concrete paving and block paving
- Quarry tiles and brickwork
- Indoor floors as well as outdoor patios and terraces
- Vertical surfaces such as walls, as well as horizontal paving
A natural finish — not a wet look
This is an impregnating sealer, so it dries with a natural finish and minimal change to the stone’s colour and texture. If you want a richer, enhanced colour instead, see our Stone Sealer & Enhancer. For porcelain paving, use the Porcelain Tile Protector.
How to apply it
First, make sure the paving is clean and completely dry. Remove any dirt, algae or stains beforehand — our paving cleaners range will help if needed.
Then apply the sealer evenly with a roller, brush or sprayer, working in manageable sections. Avoid puddling or over-application. Finally, allow it to soak in and dry fully before using the area.
For best results, seal on a dry day with no rain forecast, and check the technical data sheet for coverage and drying times.
Do I need to seal my patio?
If your paving is porous — most natural stone and concrete is — then sealing is worthwhile. It stops water, oil and dirt soaking in, reduces staining, and protects against frost damage over winter. Porcelain, being non-porous, doesn't strictly need sealing, though a protector can still make cleaning easier.
What is the best patio sealer?
For most patios, a water-based impregnating patio sealer is the best choice. It protects from within, keeps the natural look of the stone, and is easy to apply. If you want to deepen the colour instead, choose an enhancing sealer.
Will this sealer change the colour of my paving?
No. It dries with a natural finish and minimal change to the stone's colour and texture. For a richer, enhanced colour, use our Stone Sealer & Enhancer instead.
How long does patio sealer last?
It depends on the surface, the weather and how much traffic the area gets. As a guide, expect to reseal every few years — you'll know it's time when water stops beading on the surface.
Can I use it on block paving and indoors?
Yes. It suits block paving, concrete and most porous mineral surfaces, and it can be used internally as well as externally — including on vertical surfaces such as walls.
When can I seal a newly laid or newly grouted patio?
Allow the paving and joints to harden and fully cure first — a minimum of 28 days for newly laid, freshly grouted or repointed joints. The surface must also be completely dry, as sealing over damp paving traps moisture.
| Product type | Water-based impregnating sealer |
| Finish | Natural — minimal colour change |
| Suitable surfaces | Natural stone, reconstituted stone, concrete, block paving, quarry tiles, brick |
| Use | Internal and external; horizontal and vertical |
| Protects against | Water, oil and grease staining, frost damage |
| Application | Roller, brush or sprayer onto clean, dry paving |
| SKU | 3010 |
Sealing after grouting or repointing
If you've just laid, grouted or repointed a patio, allow the joints to harden and fully cure — a minimum of 28 days — before sealing. For jointing and repointing, see our GftK paving joint mortars, or read our guide on choosing the right grout.
Buy from the UK's paving specialists
NCC Streetscape supplies professional paving products across the UK, with free technical advice on every order. Not sure whether your paving needs sealing, or which sealer suits it? Call 01257 266696 or email sales@nccstreetscape.co.uk — a couple of photos of your paving always helps.
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