DrySeal Masonry Protection Cream – Deep-Penetrating Water-Repellent For Brick, Stone & Masonry
 
Wykamol DrySeal is a BBA-approved, high-performance masonry protection cream designed to penetrate deeply into brick, stone, concrete and other porous masonry surfaces. It forms a long-lasting, breathable silicone barrier that repels rainwater, prevents penetrating damp, protects against frost damage and reduces salt efflorescence.
 
DrySeal’s unique thixotropic cream formula allows it to be easily applied by brush, roller or spray without running, even on vertical surfaces. Once absorbed, the active ingredients chemically bond within the masonry to create a clear, water-repellent finish that maintains full vapour permeability.
Suitable for both domestic and commercial use, DrySeal helps keep walls dry, protect cavity wall insulation, and prolong the life of external façades.
 
Advantages
 
Deep-penetrating masonry protection cream
BBA-approved for professional use
Highly water-repellent – reduces penetrating damp
Prevents frost damage and salt spalling
Allows the wall to breathe (vapour permeable)
Suitable for brick, stone, concrete, render & blockwork
Thixotropic formula – no drips, runs or sagging
One-coat application for most substrates
Improves thermal performance by keeping walls dry
Ideal for protecting cavity wall insulation
 
Typical Applications
 
External brick and stone walls
Masonry suffering from penetrating damp
Protection of cavity wall insulation from moisture ingress
Coastal or exposed elevations subject to driving rain
Heritage structures where breathability is essential
Rendered surfaces needing water-repellent treatment
Pre-treatment before painting or façade coatings
 
Coverage & Application
 
Approx. 20–25 m² per 3L tub (varies by porosity)
Apply by brush, roller or low-pressure sprayer
Suitable for use on damp but not saturated masonry
Absorbs into surface within 30–60 minutes
Dries clear; no sheen or surface film
Only one coat required in most cases
 
Technical Data
 
Property
Value
Form
Thixotropic masonry cream
Approval
BBA-certified
Coverage
20–25 m² per 3L
Vapour Permeability
Fully breathable
Water Repellency
High (silicone penetration barrier)
Application
Brush, roller, spray
Use
External masonry
 
Why Choose DrySeal?
 
As one of the UK’s leading specialist masonry water-repellents, DrySeal provides professional-grade protection against penetrating damp while retaining full breathability. Its BBA certification ensures reliable long-term performance, even on highly porous or weather-exposed masonry. For homeowners, surveyors and contractors, DrySeal offers a fast, reliable and cost-effective solution to ongoing damp problems in external walls.
 
Frequently Asked Questions
 
What is DrySeal Masonry Protection Cream used for?
 
DrySeal is a water-repelling, salt-inhibiting masonry protection cream suitable for all types of masonry, designed to prevent rain penetration and allow the structure to breathe.
 
Can DrySeal be applied on damp or porous surfaces?

Yes. The thixotropic cream can be applied even on damp masonry and penetrates into porous substrates, reacting to form a permanent chemically-bonded silicone coating.
 
How many square metres will one tub cover?

Coverage is approximately 20-25 m² per 3 litre tub, depending on substrate porosity and conditions.
 
Is the surface still breathable after treatment?

Yes. After drying clear, DrySeal prevents liquid water ingress but remains vapour permeable, allowing the masonry to breathe.
 
What certification does DrySeal have?

DrySeal is BBA-approved and suitable for professional specification in external masonry waterproofing.