Hello, I am building a single SK n shed in Toplite thermal blocks, will Wethertex adhere to the blocks and provide adequate waterproofing? Regards Allen
Assuming the wall is clean dry and sound, we can recommend Wethertex HBS Flex-Coat Hi-Build Coating.
This paint is designed to go over render repairs and as such should cover texture of the Toplite/Aircrete blocks as we understand these have a fairly closed surface unlike standard breeze block.
For this application you will need to prime with Wethertex ST1 Quick Dry Stabilising Primer prior to application.