Sandstone Sealer

£55.00£195.00 inc. VAT

(22 customer reviews)

UK’s Most Advanced Patio Sealer

A high performance outdoor patio and path sandstone sealer. Quick drying, 100% breathable patio sealer allowing for vapour transmission with a durable satin finish


Super Sealer Saver Deal!

3 bottles for the price of 2*

Take advantage of our bundle 3-for-2 saver offer. Order our special 3 for 2 package and get 15 litres (3 bottles) for the price of 10 Litres (2 bottles) – third bottle is FOC! This outstanding value offer won’t be around forever so take advantage now!

*Only available for retail customers, cannot be used in conjunction with discount coupons or trade pricing. Returns: On special promotional offers (including but not limited to 3-for-2 deals), all purchased items must be returned, unopened and in good condition for a full refund (minus shipping). The third item (no 3) of the 3-for-2 deal is supplied Free of Charge (FOC) as part of this offer and has no monetary value – it is considered your extra item and is counted last in returns & refunds (first paid item = no 1, 2nd paid item = no 2, 3rd item FOC = no 3). If you keep or use one or more of the promotional products and decide to return any goods, we will refund the value of the returned items excluding the third item (no 3) in the offer. For example, if you purchase 3 items at £60 each on a 3-for-2 you pay £120 total: You use one item and send the 2 remaining items back – we calculate your refund based on you using a paid item (no 1) and are returning the other paid item (no 2) and the FOC item (no 3) making the refund total £60. If you purchase 3 items at £45 each on 3-for-2 and pay £90: you use two items (no 1 & no 2) we count these as paid items, making the third bottle the FOC item (no 3). If you send back the third item you will not qualify for any refund as it is assumed as the FOC item.

Latest Product Reviews…

“Very very easy to paint on, goes a long way too!”
B Davis, Croydon

5 star rating

“Great product if you want the sandstone to look slick and get rid of that drab, dusty look it has. I put 3 coats on my patio and it has a lovely glossy finish now. Recommended!”
Charlie Frost

5 star rating

Universeal Sandstone Sealer

Patio Protection

Usage Guidelines

Drying Time: 45-60 mins
Applications/Coats: 1-3 Coats
Application Method: Roller / Sprayer / Brush
Dilution: Undiluted


Download a PDF Safety Data Sheet
Download a PDF Technical Application Guide


Universeal Sandstone Sealer is the ideal outdoor sealer for sandstone patio & paths. Quick drying, 100% breathable patio sealer allowing for vapour transmission with a durable satin finish.

Universeal Sandstone Sealer is a high quality water-based polymerised protective coating that creates a strong durable finish on all kinds of outdoor natural sandstone, including patios and pathways. Universeal Sandstone Sealer is very easy to apply, is self levelling and penetrates the substrate to protect against oil and water-based stains.

Universeal Sandstone Sealer offers excellent stain protection. It is a colour enhancing, impregnating sealant suitable for all types of popular UK sandstone, including rainbow sandstone, Indian sandstone, beige sandstone, raj sandstone and more.

Special Features

  • Suitable for all popular natural stone types including Limestone & Slate
  • Quick drying easy application
  • 100% breathable allowing for vapour transmission
  • Durable, stain-resistant protection with a satin sheen finish
  • Enhances natural colours
  • Low odour water based formula
  • Long lasting protection


  1. Always perform a test in an inconspicuous area on-site to check suitability of product, prior to use – read these instructions fully before application.
  2. The surface to be treated must be completely dry and clean.
  3. 1st coat (impregnation): Apply Universeal Sandstone Sealer at a ratio of 150ml/m2 with a low pressure sprayer, natural fibre brush, paint pad or sponge until overall saturation of the stone surface. Within 10 minutes, check that the application has evenly covered the surface; make sure the solution is well distributed to allow for full, even absorption.
  4. 2nd coat (surface protection): Apply wet on wet within 15 minutes of the first coat (while the stone is still wet inside), working in the opposite direction to the first application for a balanced, even finish at a reduced ratio of 100ml/m2. Make sure that the formulation is applied evenly.
  5. Always allow a minimum of 2-3 hours drying time before limited footfall to ensure maximum long-term protection.

Please Note:

Application range: 5°c – 20°c. In colder conditions the drying time may be extended, do not walk upon or apply further coats until the sealer is completely dry.  Areas not to be sealed must be protected with masking materials.


Apply undiluted. Approximately 8-10m2 per litre / coat.
Coverage will vary depending on surface texture and porosity.

Storage Information:

Product lifespan symbolsProduct shelf life is 12 months from production date (shown on cap) when unopened and stored at room temperature. After opening, use within 3 months.


The amount of gloss/sheen effect can be controlled by the number of coats applied. The recommended 2 coats will give a soft, subtle gloss finish – add more coats for extra gloss. Do not over apply the product as it may result in moisture issues, leading to stickiness, white patches & blistering/flaking.


H302: Harmful if swallowed.
H319: Causes serious eye irritation.

P102: Keep out of reach of children.
P233: Keep container tightly closed.
P262: Do not get in eyes, on skin, or on clothing.
P264: Wash skin thoroughly after handling.
P301+330+331: IF SWALLOWED: rinse mouth. Do NOT induce vomiting.
P302+350: IF ON SKIN: Gently wash with plenty of soap and water.
P305+351+338: IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
P333+313: If skin irritation or rash occurs: Get medical advice.

Product SDS sheet available to download from the downloads tab.

Typical Applications…

Additional information

Weight 6 kg
Dimensions 20 × 18 × 30 cm
Size Option:

3 for 2 offer, 5 Litre, 25 Litre

22 reviews for Sandstone Sealer

  1. Charlie Frost

    Great product if you want the sandstone to look slick and get rid of that drab, dusty look it has. I put 3 coats on my patio and it has a lovely glossy finish now. Recommended!

  2. B Davis, Croydon

    Very very easy to paint on, goes a long way too!

  3. Paul Fredericks – Patio & Paving Contractor

    You don’t mind paying a bit for a product when its good, I was told by this company that it is a high quality sealer and they weren’t exaggerating. Good service and I’ll be coming back to try more of your products, thank you



  5. Cyrille & Maureen – Bouremouth

    Very helpful company, I requested a quick delivery and received this product the following morning in time to do over the weekend. We are very pleased with the Sandstone Sealer. It’s made our Black Paving look like new again. Thank you to Amanda @Universeal for being very helpful and excellent delivery service.

  6. Lisa Sprockett – Kettering

    Very pleased with my purchase, after contacting the suppliers they gave me very good advice. My sandstone paving looks as good as new after using the cleaners and this sealer, I would strongly recommend this company and it’s products.

  7. Chris Greg

    This product has transformed our Sandstone paving, the technical man said this product was a new formula for them and that I would be very pleased, I have to say I definitely very happy with the results!!

    The good thing is it actually did a lot more than it said on the label so I have a 5 litre tub to send back for a refund which has saved me money.

    Very refreshing to deal with a very friendly and helpful company, highly recommend this product and the company.

  8. Wayne Tyler – Channel Islands

    This is a good product, very easy to apply and dried within an hour even in this colder weather. Really pleased with the look, gives a nice finish.

  9. Steve Parsons – Exeter

    Really pleased with this product, easy to apply and dried very quickly. After a horrible winter my Patio looks nice and clean and sealed now.

  10. Bob C – Stockport

    Arrived next day and was really easy to use

  11. Jason Smith

    Thanks for your positive feedback Paul

  12. David & Shirley from Norwich

    Great service, the product arrived very quickly and we are very pleased with the results, our patio looks something like it did when it was first laid.

    We used the 10% discount code on the website when ordering and because we ordered 4 x 5L we were given an extra 10% by the lady in the sales office, Universal are a nice company to deal with we are very pleased with our purchase and would definitely use them again.

  13. The Websters – Honiton

    We are very please with the results, easy to apply and super quick delivery

  14. Steve Hudson – Dorset

    Great finish look…Very Happy!!

  15. Susan McCann – Sterling

    Great advice and customer service, the product did exactly what I was advised…VERY PLEASED!!

    Very Professional Company & Products

  16. Steve & Nicola – Windermere

    We had a sandstone patio laid last year, foolishly we didn’t seal it, through the winter it has gone all green and looks terrible. We had been recommended Universeal products, I spoke with Jason who was very helpful, he certainly knows his stuff. He advised that we buy some of their outdoor cleaner which really did work well it brought the patio back to brand new again We now sealed with 2 coats of the sandstone sealer and it looks fantastic. Can’t wait for the better weather to arrive so we can start using it again, big thank you to Jason and his colleagues for a professional service, the products are everything he said they would be.

    Very happy customer, I will definitely be recommending to my friends

    Steve & Nicola Jefferson-Ramsey

  17. Georgia Cotes – Bristol

    Very pleased, product arrived the next day and our Sandstone Patio looks as good as new again.



  19. Charles Moore – East Sussex

    Super fast delivery, great product A++



  21. Janie Timms – Sunningdale

    The sealer arrived the following morning just in time for the weekend, very pleased with the finish

  22. Joan Harpe – Lymington

    Highly recommend, product was very easy to apply and dried within 1 hour, we are very happy with our purchase, thank you.

  23. Nick Craney – Newcastle

    Thank you for delivering the product before the Easter Bank Holiday, we’ve applied the sealer and our patio looks great.

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