

We no longer stock this product, but can recommend Britannia Aquashield Primer as a great alternative.
Provides vital stabilisation of highly friable/porous surfaces such as concrete, asbestos cladding, sheeting and guttering prior to the application of 803 Smooth Waterproof Roof Coating or 802 HB Waterproof Roof Coating ensuring they are able to deliver optimum waterproofing performance.
• Ready to use
• Rainfall immediately after application has no adverse effect
• Solvent based
![]() | Question: Need to seal overlaps on pressed cement roofing sheets then seal full sheets. Will also need fungicidal treatment. Please advise which products in which order and if use of re-enforcing is needed for joints. Standard double garage size. |
Answer from Rawlins’ Technical Team: As a minimum we would recommend cleaning the surface, applying Britannia Fungicidal Wash Solution and allowing to act. Wash down and allow to dry and prime with Britannia Durashield FD Primer and allow to dry. Scrim joints using Britannia Reinforcing Scrim in a basecoat of Britannia Durashield. When dry, apply a final coat of Britannia Durashield to entire area. | |