Can this be used on concrete block wall prior to painting with sandtex masonary paint?
We would not recommend using this product as an exterior primer before applying masonry paint. This would likely affect the long term adhesion and performance of the masonry paint as the PVA is not waterproof. We would suggest contacting Sandtex to discuss the right primer for your paint and wall.
Thanks for using Q&A, KC
Date published: 2017-04-12