Water-repellent and breathable, Stormdry Repointing Additive No.1 (500ml) is a BBA approved, water diluted concentrate mortar waterproofer that is added to cement/sand and lime/sand mortar mixtures, which imparts water-repellency to the mortar whilst still allowing it to breathe.
Stormdry Repointing Additives are designed to enhance the waterproofing characteristics of mortar mixes used for repointing. They are diluted with water before being used as a gauging solution.
We offer next day
(standard delivery £9.50 excl VAT)