Stormdry Masonry Waterproofing Cream (5L) 25-Year BBA Approved Exterior Brick, Stone, Concrete, Stone, Mortar, Sandstone Sealer

Product information

Brick, stone and mortar are highly water-absorbent. Wind-driven rain on your home’s walls causes damp patches, blistering paint, an increased likelihood of mould growth and faster heat loss.The British Board of Agrément has certified that one coat of Stormdry Cream will protect walls from moisture ingress for at least 25 years.

• Guarantee - Statutory
• Store in a cool, well ventilated area. Keep container tightly closed. Protect from frost
• Apply by brush, roller or spray. Larger areas can be covered more quickly using roller application. Details such as around windows are best covered by brush. Care should be taken to ensure that Stormdry Cream does not splash onto glass, paintwork, patios, plants, etc. Any splashes should be cleaned away with warm soapy water to avoid staining. After application, tools should be cleaned immediately with warm, soapy water. Stormdry Cream appears white immediately after treatment, making it easy to tell which areas have been treated. After 15 – 20 minutes from application the cream starts to penetrate into the masonry and the whiteness will fade over time. After 24 – 48 hours the wall will have returned to its original appearance, there may be some slight darkening which will fade over time. The masonry will generally be resistant to light rain after 2 – 4 hours. As Stormdry Cream is formulated to penetrate deeply into masonry it can take up to two months for a noticeable “beading effect” to appear when rainfall strikes the wall.

Features and benefits

Stormdry Masonry Protection Cream prevents rain penetration and is scientifically proven to “help improve the energy efficiency of dwellings by reducing heat loss, leading to lower heating requirements.” It is also widely compatible with common building materials, and has been proven to reduce water absorption on more than 50 substrates. It has been applied to over 30,000 properties, ranging from small domestic properties to large residential buildings and even commercial projects. Stormdry Cream goes on white then dries clear, allowing you to easily see where you’ve already applied for consistent coverage. Once applied, it absorbs into and bonds with walls, making them waterproof without changing their appearance.

• PREMIUM High-Strength Wall Water Seal for Brick, Stone, Mortar, Sandstone and Granite.
• 25 YEAR PROTECTION Stormdry’s cream-based formulation allows it to Penetrate Deeply forming an invisible Water Repellent barrier in a Single Coat Application
• BREATHABLE Allows masonry to breathe and dry naturally. Easy to Apply Penetrating Damp Treatment that maintains thermal properties of cavity wall insulation
• COLOURLESS brick sealer. Fully cured Stormdry brick damp seal will maintain natural appearance of the wall
• INDEPENDENTLY APPROVED, TESTED & VERIFIED: ✔️ BBA Approved (Certificate Number: 15/5198); ✔️ Verified by the Energy Savings Trust as an energy saving method; ✔️ Tested by University of Portsmouth