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Patio Sealer (Sample, 5 & 25 litre) - High Quality, Durable Sealer for Pre-cast Concrete Slabs & Flagstones

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Customer Reviews

I have used the patio sealant on my 25 year old patio after a complete clean with the patio extreme cleaner. I am so pleased with the result it looks amazing. It has given my old tired looking patio a new lease of life and I am very pleased with the results. I know how easy the patio will be to keep up to from now on because I used the drive sealant some years ago on my driveway and it has been perfect since. I found the sealant very easy to use and quick to apply using a sprayer and a brush for any pooling as my patio has riven flags and obviously I needed to take more care. Thank you smartseal E. Porter

By Elfi Porter

Smartseal is very helpful and the patio sealer that they advised is easy to use and very effective.

By Alan Wardle

Very gd

By Michelle Hives

Very easy to apply, a bit stinky though so wear a decent mask and suitable protective clothing, especially Wellys that you don't mind messing up. I used a roller on a broom handle to apply. Definitely needed two coats as the first sank right in, and the second coat deepened the pavers colour and left a nice sheen. If you have used setting grout on paving slabs (like I did) rain water will sit on top in small puddles rather than drain away, so be aware of that. I will be putting a 3rd coat on to even out slight colour variations after Karchering some very dirty pavers, but very happy with the results so far. The only reason I gave 4 stars is because I don't know what the long term performance will be, obviously. I am optimistic though.

By Richard Daniow

The product and roller set arrived last week. I have waited until now to do the job as the weather was not very settled. Two coats of the sealer have been applied to the patio. I am very happy with the finish and the way it was applied. I have enough left to give a refresher coat next year. I found the instructional videos on U Tube very helpful before starting the work. Many thanks.

By Paul Evans

Great product, the patio sealer is easy to apply with the roller. High odour so let your neighbours know. My only issue is I have about 7 litres left and am finding it really hard to dispose of. My council referred me to commercial waste, who do not take liquids.

By Chris R From Brighton

Used paint tray and rollers to apply the patio sealer. Easy application, and looks really good. Hopefully it will last a while as not cheap and I wouldnt want to be doing this too often Powerful fumes, so you may need a mask depending on your tolerance

By Jackie West

Just finished applying the 2nd coat of sealer on patio, looking good . Has given the patio a wet look appearance and hopefully keep it protected for a few years before it needs any further application.

By H HEER From Rochester

Used a sealer for the first time. Quite impressed with the sheen finish bringing back the original colours of the patio. Quick and Easy to use with a sprayer as had a very large area to cover. Highly recommended.

By Sandeep Patel From London

Took 2 coats and still patchy. Made light pink grouting cement between paving stones look like a mouldy grey. Regret using it tbh.

By A Burns From Devon

Cleaned and sealed a flagstoned patio originally laid 15 years ago, it brought the colour back to life. I used a roller to apply two coats of the sealant, which was easy to apply. Good product and worth the cost.

By Happy Customer

I took my time deciding which product to use on my newly laid slabs. I did try a sample of the sealer and was impressed with the finish, so ordered 2 x 5litre cans. Just completed 3 coats as the patio is new and the finish is just what I wanted. A nice satin, finish that brings out the aggregate shine and the colour is as though the slabs are wet. Spot on !

By Kevin Williams

I am so thrilled with this sealer. Used quite an expensive one last year and hasn't lasted at all. After doing a bit of looking about on the internet, I came across this. My 11 year old patio looks amazing! I used a sprayer to apply which was so quick and easy and much better than a roller which I'd previously used.

By Alison Francomb From Bristol

The patio sealer is a great product , outstanding results and Finnish, highly recommended. Resorted my concrete slabs to new.

By Gareth Williams

Fantastic patio sealer,really top notch product,I sealed about 42 sq.metres of concrete slabs,(with a sand and cement mortar)managed three coats in the same day,with just enough left for another coat. Really brought out the colour of my light grey slabs to a nice dark shade of grey. Added the anti slip product too,another quality product. Only time will tell how long it lasts,but I am confident Ill get three to four years before applying another coat,which smart seal recommend,and I am happy to do this. Great service too,phoned me back after a left a message seeking some advice. Really thrilled with the way it turned out. Will definitely use again

By Simon Thorpe From Nottingham

I have just purchased this product again after more than 5 years since I first used it. After jet washing all the filth from my patio and drive, I applied the first coat and already you could see an improvement in appearance, then after the second coat it is really brilliant. A really shiny finish with the colour coming through again. I would definitely recommend.

By Andrew Pritchard From Wirral

Brilliant product, worked perfectly. I now have a patio with colour again and wet look finish which is what I wanted. Can't recommend enough, fantastic advice on what exactly was needed. Quick delivery and saved me thousands in not having the patio relayed.

By Stuart Stroud

The patio sealer is very good and easy to apply, the result is well worth the effort.

By Keith Potts

Excellent speedy delivery. Product applied to new patio easily by brush (2 coats) and creates a glossy waterproof coating on the concrete paving slabs. It also enhances the colour of the slabs.

By L Spence From Hayle

I have only used the 'Sample Pot' of sealer on a small area on my patio, which was jet washed beforehand. Considering the patio was laid something like 20 years ago, and the surface was pretty filthy before jet washing, I'm impressed with the result. After 2 coats the original colour can now be seen with a very nice wet look finish. For that reason I will now be ordering a 25 litre can to do the whole patio and surrounding area.

By Michael Wanstall From Gravesend, Kent

I found the patio sealer easy to apply and second coat much quicker. It has a pleasing sheen and is easily brushed. Very happy with the product.

By Anita Taylor From salisbury

Prompt efficient service even in difficult times. Sealant for patio an excellent product, easy to apply & completely satisfied with the result.

By David Hughes From Ayr

Excellent product makes the patio like brand new agaib Thankyou

By Sandra Stafford

Excellent results! Patio has a new lease of life. Didn't realise how bad it was untill we used this product, so easy to apply with a roller gave it 2 coats as advised and looks brand new. Thank you! Will deffinately use again.

By Ashleigh Keenleyside

Excellent sealer, goes on easily with a roller. I used two coats on my patio and the slabs came up a treat.

By Gareth Williams From Denbigh

Very pleased with the patio sealer, easy to apply and enhances the slabs colour and leaves a lovely finish

By Toni Fridge

Very quick delivery, used a roller to apply the patio sealer and got the high gloss finish required. Would use again.

By Colin Tripp

Excellent product have already ordered again!

By Billy Crawford

I was about to give up on my tired old patio and then I came across Smartseal. This stuff is amazing, after using the sealer with a colour it has brought the patio back to life. Very happy.

By Andrew Fraser From Inverness

This is a great product already used the sealer and it left everything so easy to tidy up. I found that using a sprayer to apply this was much better than a roller.

By Peter Murdoch

Great service and very happy with the sealer

By Keith Fairclough

Now that I have tried this product out with a sample size and found it excellent, will order in a larger quantity when ready to seal my new patio. Also, very fast delivery. Thank you Regards

By Carole Elmer From johnelmer191@btinternet.com

Just started the 2nd 25l drum, you need to take your time and evenly coat the paving slabs, 2nd coat so much easier, I coated the patio early on Thursday morning and 2nd coat late evening, plenty of weather watching for the 2nd coat. Bird muck wiped away with no staining in between coats. I look forward to trying more products.

By Mark Tanner From EAH Property Services

It�s been 5 days since I applied the patio sealer and it is looking good. Keeping my fingers crossed that it will last. So far so good. I will purchase it again

By Samira Natafgi-Roberts

First Class. Sealer easy to apply. Brings life back to the patio.

By John Williams

Great product, complete transformed my paving!

By Elise Davies

I was a little sceptical after the first coat but once the second coat was applied I am very pleased with the finished product. Its actually brought some life into the patio. Thanks!

By John McCloskey From Coventry

Have not used the Sealer yet but my Patio has been brought back to as new with the use of your Cleaner extreme. Will review when completed Regards Ian

By Ian Wisdom From Bexleyheath

I give this product a rating of 5 but the container was damaged when it arrived

By Martyn Bryce

Faultless product and service


Really good product, after 2 coats I now have a nice protective coating to the patio and it looks much brighter and cleaner thanks to the patio clean extreme i used before this.

By Russell Dale From Birmingham

By Matthew Curness From West Wickham

Great product, great service

By Julie Markey From Wigan

Used this patio sealer on 2 jobs last week for my driveway and patio cleaning business, www.everbrightcleaning.co.uk . The results were amazing, very easy to use, pour sealer into a Sealer/Coating Scuttle, then use either a paint roller that can absorb sealer and apply by hand or on a long pole, or use a paint brush. 1st coat was dry in about 15 mins, it was very hot day, and second coat took about 20 mins . Much longer time periods must be allowed in less hot conditions for sealer to dry, do not use in damp wet conditions or with threat of rain in next 24 hours forecast. Always wear gloves and eye protection as well as breathing mask as fumes can make you feel sick if breathed in directly with no fresh air circulation. Summing up, very easy to use, great product at a reasonable price, with spectacular results.

By Russell Kerr From Norwich

Excellent easy to apply looks great and fast service

By Ian Taylor

Great product! Easy to use

By David Moore

Used this before, does what says on the label A++++

By Mark Garside From Stoke on trent

absolutely fabulous,my patio looks better now than when it was first laid,would certainly recommend this product.

By Clarinda Valerie Sen From Belfast

We have used this before, fantastic sealant, totally revives a tired patio. Yet again transformed our garden.

By Liz Mcculloch

Fantastic products. Resealed my fathers imprinted concrete driveway. After a thorough clean and 2 coats of the sealer (including anti skid) its regenerated the drive. Looks better than when it was laid and the previous occasion my father paid a "professional" to coat it, which lasted around 9 months and looked patchy. Highly recommended.

By Andy Buckler From West Midlands

i have used this sealer before it is a great product goes down well and drys quickly after two coats it has really enhanced the colour of my new two tone brown slabs

By Geoff From coventry

After receiving advice from Nigel at smart seal my imprinted concrete drive been revived as good as new. It was laid 5years ago and had no further treatment till now. It looks brilliant and the finish was perfect thanks to Nigel's advice of adding the anti slip agent to the sealant. If in doubt talk to Nigel.

By Mike irwin From Houghton le spring

After receiving advice from Nigel at smart seal my imprinted concrete drive been revived as good as new. It was laid 5years ago and had no further treatment till now. It looks brilliant and the finish was perfect thanks to Nigel's advice of adding the anti slip agent to the sealant. If in doubt talk to Nigel.

By Mike irwin From Houghton le spring

Product deserves 5 stars, delivery deserves 1 star. I waited in all day after paying for overnight carrier service. I was advised the delivery driver attended site but never left a card for missed delivery. I asked for the product to be left in the garage if there was no answer.I was later told it was not possible to leave the sealant in the garage due to the nature of the product. When the product was redelivered (3 days later) it came in the morning instead of the arranged time slot in the afternoon. as I wasn't in the sealant was left in the garage!

By Vince From Halstead

very good product, after a good clean of the patio the product went on very well and leaves a very good surface shine and good value for money compared to similar products from the sheds.

By Lee Wadsworth From Yateley

excellent product. patio lots like new shame about the fumes!!!

By john hillier From np25 3hr

Although I have use other Smartseal products this was my first time using the Patio Sealer. Using the recommended roller it went on easy and has given a great finish. You do need to make sure the patio is cleaned well beforehand as every stain and mark will remain. A great product. Thank you Smartseal.

By Paul From Chelmsford

Used the Patio sealer on some pre cast slabs and it has brought them up looking as good as new, well pleased with the product. will be dealing with you again

By Alan Weller From Hornchurch

Easy to apply, makes the patio look good as new. We've used it before and know that it will help protect against the worst of the weather during the winter, making the pressure washing next Spring much faster. Great service - fast delivery!

By Andrew From Surrey

eveybody loves my patio we have 6 dogs and it is very easy to keep clean easy to do no more green slabs smartseal is 1st class service!

By tracey gainey From heanor

Excellent Product does what it sayes on the tin.

By Barry From Kent

We have now used Smartseal several times finding the products and service are both great.

By Paul Williams From First Chpice Building & Home Improvements Ltd

I have now applied the colour tint I collected on Friday and we are very pleased with the result. It took two coats to get the colour as we wanted but I still have some colour tint left so I don't think I have applied too much. . I also have plenty of Sealer left if I need it in the future. . I would like to thank you for the technical advice and very friendly way you and all your staff operate even with just a residential customer like me. I will certainly recommend your company to anyone.

By Barrie Harvey From Chelmsford

Went further than I thought and I have enough left to re-coat in the spring

By R Davies From Slimbridge

Gives the high quality finish my customer really appreciate.

By Barry Hussey From Romsey Jet Cleaning

The patio sealer is brilliant, sealed incredibly well, ( we have to get used to droplets of water over the patio after rain though). Also it highlighted and brought out the colours in the stone wonderfully. Only comment we have is that if you put the sealer on the patio slabs that are used for steps (we have) then it could be a slip problem when those droplets freeze in the winter. (thats our fault not the sealer.) Product is brilliant, does what it says on the tin.

By Barry From North Yorkshire

Great product and as always great service from Smart Seal

By Milan Rajsic From Reading

bought the patio sealer and its brightened up the indian stone to a superb finish and the colour is amazing excellent 5 star

By paul From yorkshire

Great product, goes on well with perfect results each time.

By Mark From AllSeal

I purchased one tin of patio sealer to try on the front patio. The results were so good that I had to purchase a further two tins to treat the main patio at the rear of the property. As I had some sealer left over - I then treated my mother-in-law's patio. I lost a weekend - but gained a few "brownie points"!

By Michael Hatcher From Canterbury
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Patio Sealer for Pre-Cast Slabs and Flagstones

Protect patio slabs from staining and weed growth

We supply the best patio sealer for concrete paving slabs. Smartseal Patio Sealer has been developed to combat the constant problems of staining and weed growth and to enhance the colour and aesthetic appeal of new or mature patio slab.

This sealed surface will increase abrasion resistance and also protect the pointing from erosion and weed infestation and provide a barrier to contaminants thereby facilitating easy maintenance.

** DO NOT use on Natural Stone or Sandstone

  • Enhances natural colours of Pre-Cast Patio slabs
  • Brings old patios alive
  • Easy to apply Patio sealer with sprayer, roller or brush
  • Protects against loss of colour through UV light
  • Resists oil and stain penetration
  • Inhibits weed and algae growth
  • BS5750/ISO9000 quality approved Patio Sealer
  • For optimum results apply two coats
  • Suitable for most patio slabs
  • Average coverage 4-6 sq metres per litre

Recommended coverage 
First coat: approx 4sq metres per litre
Second coat: approx 5sq metres per litre



Smartseal Patio sealer can be applied using a sprayer unit or roller, at a rate of 4 m2 per litre (pavers) 1st coat & 5 m2 per litre 2nd coat. A two-coat spray application is required to fully cover the jointing sand. The sealer will be tack free within 2 hours at 20°C and foot traffic may be permitted after 4 hours. These times may be increased or reduced depending on the ambient temperature. During the curing cycle, protect from rain. Do not apply when the ground temperature is above 30°C or below 5°C. All equipment should be cleaned with Smartseal cleaning fluid after use.

De-icing salts should not be applied directly on Smartseal block paving, patio or concrete sealers. Salt chemically reduces the temperature at which water freezes and will result in water ingress into the concrete. Subsequent freezing may result in the concrete ‘seal’ being broken by the expansion of water as it freezes and white ‘pitted’ areas may become visible.


New Patios should be swept clean, ensuring there is sufficient pointing in the joints. Existing paving should be pressure washed to remove all surface debris. If the area is contaminated with weeds & moss then it should be treated with Smartseal Moss Clear. Oil should be removed using Smartseal Oil Remover. The treated area should then be left to dry and the joints re-sanded & compacted to the lower edge of the paver chamfers with clean kiln-dried sand. Moisture in the paver & sand will inhibit penetration of the sealer and produce whiteness.

Technical & Test Data

Smartseal Patio sealer has been tested by the TRL (Transport Research Laboratory) and certified that it meets the SRV (Skid Resistance Value) for all categories of paving for local authority pedestrian areas and when heavily trafficked is suitable for special applications where risks of skidding are high as laid down in the UK Highway Authorities Tender Specification. Copies available on request.

Specification Clause

“Newly laid Patio paving shall be treated with Smartseal Patio sealer to protect and stabilise the paving and pointing. application will enhance surface colour and increase abrasion resistance. All materials should comply with ISO9002 for Quality Assurance. All work should be carried out in conjunction with the manufacturer’s current technical data sheet and instructions for use”.

Health & Safety

Flammable liquid. Do not smoke. Keep application area well ventilated. Wear respirator when applying. Store in a cool place. Flash point 40°C (Abel-Closed Cup). Refer to the Health & Safety Data Sheet for further information.