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Sandtex Microseal Smooth Masonry Paint
A smooth exterior masonry paint with a breathable, weather resistant finish that helps protect against peeling, mould and algae growth.
Features
- Smooth exterior masonry paint for walls, render, concrete and stone
- Breathable Microseal coating helps reduce peeling and blistering
- Shower resistant in just 1 hour to help protect against unexpected rain
- Helps resist mould, algae, cracking and flaking caused by harsh weather
- Ideal for refreshing tired render, weathered masonry and uneven walls
- Smooth matt finish improves the appearance of exterior surfaces
- Water based, low odour formula with up to 15 years protection
- 99% solvent free with recycled plastic packaging
Brand
Drying time
3 hrs
Coverage
Up to 14 m2 per litre
No. of coats
2
Size
150ml Sample
1L
2.5L
5L
MPN
Please Select Size/Option
GTIN
Please Select Size/Option
Overview
Sandtex Microseal Ultra Smooth Masonry Paint is a smooth exterior wall coating designed to protect and refresh weathered masonry surfaces. Its breathable Microseal technology helps prevent water ingress while allowing trapped moisture to escape, helping reduce peeling, blistering and flaking caused by harsh weather conditions. Ideal for exterior walls, render, roughcast, concrete, stone and previously painted masonry surfaces.
The smooth matt finish helps improve the appearance of tired render, uneven walls and ageing exterior surfaces while providing a durable, dirt resistant coating that stands up to the changing UK climate. Shower resistant in just 1 hour, it is suitable for a wide range of exterior projects where a long lasting, low maintenance finish is required.
For rough or uneven masonry surfaces, or to help disguise hairline cracking, see Sandtex Microseal Textured Masonry Paint.
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Preparation
Preparation
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All surfaces must be sound, clean, dry and free from anything that will interfere with the adhesion of Sandtex paint.
- New surfaces usually require little preparation, but must be completely dried out before painting
- Treat any organic growth with a suitable mould and mildew cleaner, before brushing down the masonry surfaces to avoid spreading live spores - re-apply after brushing if necessary
- Remove all loose and flaking material by scraping or brushing with a stiff bristle brush (not wire)
- Chalking, weathered, powdery and porous surfaces should be brushed down and treated with a suitable stabilising solution
Application
Application
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Always do a test area before starting any project to check product suitability and final finish. Follow the manufacturer's instructions on the container at all times. Do not apply if there is a risk of rain or frost or if the temperature will fall below 8°C (46°F) during drying.
Please Note: This product is not suitable for common or fletton type bricks.
- Stir the paint thoroughly before and periodically during use.
- Apply Sandtex Smooth Masonry Paint with a masonry brush or exterior roller
- For best results, 2 coats are recommended
- Leave 3-4 hours drying time between coats
- When over-painting darker colours an extra coat may be required
F.A.Q.
F.A.Q.
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Can this paint be used in a spray gun?
Can you use Sandtex Smooth Masonry Paint on Monocouche?
Will this product be ok for external wood?
Can I use Sandtex Smooth Masonry Paint for interior bricks in a shed?
Is the Sandtex Microseal Paint thin or is it as good as the Sandtex Trade High Cover Smooth Paint?
Can I paint a concrete floor outside with Sandtex Smooth Masonry Paint?
Is the Sandtex Microseal Ultra Smooth Masonry Paint any good for an internal garage breeze block wall or is there a better option?
Yes, we recommend application by either a good quality masonry brush, exterior roller, or airless spray.
Can you use Sandtex Smooth Masonry Paint on Monocouche?
Monocouche can be painted to change its colour or refresh its appearance. Sandtex do not list monocouche specifically as a commonly used substrate so we would advise a test area before use.
Will this product be ok for external wood?
It is not designed for this kind of substrate. Instead, consider Sandtex 10 Year Exterior Multi-Surface Gloss Paint.
Can I use Sandtex Smooth Masonry Paint for interior bricks in a shed?
If the bricks are sound and dry then yes, this is a great option.
Is the Sandtex Microseal Paint thin or is it as good as the Sandtex Trade High Cover Smooth Paint?
The retail version is slightly thicker than the trade paint to make it easier to apply for the less experienced user.
Can I paint a concrete floor outside with Sandtex Smooth Masonry Paint?
We wouldn't advise this paint on this type of surface as it isn't durable enough under foot.
Is the Sandtex Microseal Ultra Smooth Masonry Paint any good for an internal garage breeze block wall or is there a better option?
Sandtex Smooth Masonry Paint is suitable for use on an internal garage breeze block wall, as it provides a durable, smooth finish designed to withstand various conditions, which is beneficial in spaces like garages.
Datasheets
Reviews
Reviews
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43 customer reviews
5.0/5.0
based on last 18+ months
5 stars
39
4 stars
4
3 stars
0
2 stars
0
1 star
0
Superb paint!
Love the colour of the French Grey, easy to apply and it covers well.
Would highly recommend this paint!
Sarah. FRENCH GREY - C4400Q, 5L (01/12/25)
Good coverage
This paint colour is very warm-looking, not at all overpowering. It goes well with the cream paint on the other half of the pair of semi-detached bungalows.
Mrs O Burrows. SOMERSET PINK - W6810M, 5L (03/11/25)
Brilliant company
This product is exactly what I was looking for at a fraction of the price from other websites. It goes on easily with a brush or because of the project I'm using it for a sponge.
Neil Balmforth. BRICK RED - Y0141W, 5L (01/11/25)
Cheapest around
I ordered a 12 x 5 litre tins of paint from here as they were the cheapest around, imagine my surprise when I got a huge multi buy discount at checkout ???
Steve Whelan. SANDBLAST - B1670L, 5L (31/10/25)
Done the job well
3 x 5 litre. Bought them, used them. Pleased with the brick wall finish.
Would buy again.
HUGH CAMPBELL. BRICK RED - Y0141W, 5L (15/10/25)
Good quality paint
A smooth masonry paint which is easy to apply and has a nice Matt finish
Richard. Black, 1L (14/10/25)
Exactly what we needed
Lovely to be able to buy a small amount of the paint we wanted.
Marilyn Reid. LIGHT CREAM - A7710Y, 150ml Sample (04/10/25)
Good product, great colour
I have used this paint to cover bare concrete panels in an agricultural shed. It’s taken 2 coats (3 in places) but thats not the fault of the paint (I’m not the best decorator!)
The colour is fantastic, fresh, bright & creamy.
Linda Chapman. COTTON BELT - C6850K, 5L (01/10/25)
Easy to use
Flows easily and doesn’t drip everywhere! Magnolia a lovely cream colour. Had used a Cornish Cream tester which turned a lemon colour on the wall.
SM. Magnolia, 5L (12/09/25)
This is a good product for exterior block walls if used to makers instructions, it takes several coats but is good
Does what it says on the can
Richard Chapman. PLYMOUTH GREY - A6480D, 5L (06/08/25)
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