Stormdry 5L Masonry Waterproofing Cream

Code: 129720
  • £104.99
  • (FREE UK Delivery)
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What is Stormdry Masonry Protection Cream?

Stormdry is a deeply penetrating water repellent cream for brick, stone, and concrete . Due to its cream-based formulation it is able to penetrate more deeply into masonry than standard liquid-applied water seal products.


Stormdry is based on proven silane/siloxane technology and works by lining the pores of the masonry rather than blocking them - allowing the wall to continue to breathe. This is in contrast to many standard brick sealer and stone sealer products which coat the masonry with a thin film.


Stormdry is easy to apply using a brush or roller and only a single coat application is required - many competing water repellent products require two coats.


25-Year Durability

Stormdry is the only colourless masonry water repellent treatment that carries BBA approval (cert. number 15/5198). After extensive testing to determine continued water-repellency after aggressive freeze-thaw and UV exposure, the BBA issued a certificate with the followiung durability statement:


the product will remain effective as a masonry water repellent for 25 years.

Energy Saving

By providing in-depth protection against moisture ingress, stormdry is able to energy save. Tests carried out by the University of Portsmouth demonstrate that energy savings of up to 29% are possible by keeping walls dry using Stormdry. This is because dry walls are better insulators than wet walls.


Flood Protection

Used in conjunction with Stormdry Repointing Additive No.2, stormdy aids flood resistance of masonry without altering its appearance.


Stormdry - Preparation & Application

Stormdry should only be applied to dry, porous surfaces. It should not be applied over sealed or painted surfaces and is intended for aboveground use only. Only apply when rain is not forecast for the next 24 hours. For the treatment to be successful it is essential to check all joint and roof connections. Hairline cracks up to 0.3mm can be ‘bridged’ by Stormdry, however, it may be necessary to fill cracks in brick/ stonework and repoint using a suitable sand/lime or sand/cement mortar incorporating Stormdry Repointing Additive. Dirty surfaces should be cleaned before the application of Stormdry Masonry Protection Cream to the recommendations given in BS8221-1:2000, “Code of practice for cleaning and surface repair of buildings. Cleaning of natural stones, brick, terracotta and concrete.” DO NOT USE DETERGENTS. Application to structures containing high levels of salt should be avoided.


Test Area

Stormdry has been formulated to be colourless once cured. However, very slight darkening may occur when it is applied to some substrates. Although this will usually fade over time, a small, representative and inconspicuous test area should always be treated before full treatment begins.


Showing 3 of our total 4 reviews, with an average rating of 5 stars. Read all 4 reviews for Stormdry 5L Masonry Waterproofing Cream.
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Review Summary - 5 out of 5 based on 4 ratings.
November 5, 2019 | PAUL JACOBS
5L Masonry Waterproofing Cream

It is expensive but its really good quality stuff, literally does what it says, easy to apply its like a thick yogurt , doesn't go far on rough surface bricks as you have to brush it in well to the grooves and cracks etc .watch the video it explains how to use it really well.
I would defiantly recommend this product and has 25yr guarantee.

October 7, 2019 | Sue Vickery
5L Masonry Waterproofing Cream

It does what it says on tin

September 7, 2019 | Gill, Wallasey, Merseyside
5L Masonry Waterproofing Cream

Fantastic product. Swift and easy transaction. Arrived in record time.

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