Please note: Due to issues caused by Covid-19, allow 5 to 7 working days for delivery. If your delivery is overdue, please email
Payment Methods Accepted
Buy with confidence

'BLOCK MAGIC' Sealer BLACK (sample 5 & 25 L) Re-colour Old Block Paving - ALWAYS- Apply 2nd coat of CLEAR Sealer

StarStarStarStarStar 20 Reviews|(5/5)
Please select a size
In Stock In Stock

Customer Reviews

Amazing product. Gives brilliant coverage using only one coat with excellent results. Really easy to apply. Customer support is really great. Highly recommend this sealer which will give your old patio a new lease of life.

By Claire Ecclestone From Cheshire

All I can say is wow . The result is amazing. We had a red block paved drive and have changed the colour to black. It has totally transformed the front of the house

By Mike Johnson From Wirral

Excellent completed my drive what a stunning look now thank you.

By Vince Di Salvo

1st Class company and product. Sup quick delivery......... Just keep stirring the product from start to finish. I wouldn't buy from any other company. My drive looks the dogs bits. 👍👍👍👍👍👍👍👍 Thank you SMARTSEAL.

By Mark Williams From Thorpe le Soken

Unreal product. Transformed my dated pink block paving stones to an ultra modern looking jet black stone. Really easy to put down (just make sure you clean the paving down properly first) One coat is plenty (which I didnt believe at first, but it is) you'll still need to buy a good clear resin sealer (buy off ebay) for the sealer coat (give it two coats) but I could not rate the product highly enough.

By Ant Bennett From

Great product... must mix well and during process. Beautiful finish.

By Mark Williams From Thorpe le Soken

Gives an excellent finish, is easy to place, and when covered by clear sealer gives a water resistant surface

By Richard Bows From Rutland

I like the colour transformation but unfortunately it seems a little patchy. I've tried applying a second coat but it doesn't seem to help at all. I mixed the product thoroughly before and during the process so I can't explain why this has happened. I'm hoping the clear sealant will help.

By Lauren Quinn From Liverpool

Good product


Great product. Does exactly what it says it does.

By David Taylor

Not sure if I was using it wrong but after I had used about a quarter of the tin to paint the bricks, the liquid became thicker when poured and the next set of bricks painted were much darker in colour than the first set. Reponse from Smartseal - Please make sure to mix product thoroughly before and during use. This should avoid the possibility of this issue.

By William Erskine

Used on my black pavers around my resin drive, they now look amazing. Excellent product.

By Richard Hawkins From Andover

Covers well

By Keith Miles

Excellent product used on my charcoal block paving around the perimeter of my drive then used the sealer. looks realy smart.

By stephen draycott From Newcastle-under-lyme

Quick delivery. Good coverage and appears a very good product. I will now be ordering the full 25l drum.


Excellent product, really smartened up my charcoal block paving around the perimeter of my drive. You can see the paint penetrating the block as you are painting.

By John Clarke

Hi. Yes extremely impressed with the product and the service. I can now look back at the transformed driveway. Thanks guys.

By Nizar Chagpar From Harrow

After receiving advice from a representative of Smartseal I purchased 5 litres of the black block magic . I used this on some new coping stones and this stuff has worked a treat. I used a paint brush to apply 2 coats and they are now a nice black colour . Thanks Smartseal

By Robert Hill

Great service, good advice, placed order for the sealer on monday and delivery came Wednesday thanks very much will 100% use your products again

By Andrea French From Gateshead

Great stuff, easy to apply. Finnish with the gloss seal and the drive is like new.

By Hope From Sunderland
Read more reviews

Leave A Review

Product Rating  *  *  *  *  *

*All submissions will be checked by our administration team before appearing on the site. Please be patient as we will try and approve your comments as quickly as possible.

Ask Us A Question


Step-by-Step Video Guide

Add colour to your block paving to make it look like new.

Smartseal "Block Magic" is a blend of liquid pigments and acrylic resins that soaks deeply into paving, totally transforming and protecting block paving driveways and patios. 'Block Magic' replaces the colour that sun, rain, vehicles and pressure washing has taken away. Apply one coat of 'Block Magic' by brush or roller, leave to dry, re-sand the joints and apply 2nd coat of clear sealer.


 Transforms Old Block Paving

  • Recolours and Protects
  • UV Stable
  • Colour Fast
  • Stain Resistant
  • Hardwearing
  • Other Colours Available

See Technical section below for more information.



Liquid UV stable pigments blended with acrylic resins and solvents create "block magic". Developed by Smartseal with older block paving in mind, it will not only recolour block paving but protect the paving from future colour loss, weeds algae and staining.

'Block Magic' Coloured Paving Sealer is applied by roller, at a rate of approx 3.0m2 per litre. Make sure the colour has dried evenly across the block paving before appying a clear second coat of sealer.Prior to applying sealer, sweep kiln dried sand into the joints and ideally compact with 'wacker plate'.The sealer will be tack free within 2 hours at 20C and foot traffic may be permitted after 4 hours. Vehicles should be kept off the sealed area for a minimum of 24 hours at 20C. These times may be increased or reduced depending on the ambient temperature.
Ensure no rain is forecast for at least 6 hours after application. Do not apply when the ground temperature is above 25C or below 12C.
All equipment should be cleaned with Smartseal cleaning fluid after use.

Deicing salts should not be applied directly on sealed block paving or concrete sealers.
Salt chemically reduces the temperature at which water freezes and will result in water ingress into the pavers.
Subsequent freezing may result in the paving 'sealer' being broken by the expansion of water as it freezes and white 'pitted' areas may become visible.


*** If your Block Paving has been previously sealed - to ensure compatibility, please contact us here before ordering:

Existing paving should be pressure washed to remove all surface debris and muck from the joints.
If the area is contaminated with weeds & moss then it should be treated with Smartseal moss clear or weed killer.
Oil and other stains should be removed using Smartseal Driveway Cleaner or 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 Block Paving 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 block paving shall be treated with Smartseal block paving sealer to protect and stabilise jointing sand and 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, gtloves and goggles when applying. Store in a cool place. Flash point 40C (Abel-Closed Cup). Refer to the Health & Safety Data Sheet for further information.