2 x Bostik Cementone Water Seal 5L Waterproof Brick Stone Rain Damage Protection

  
2 x Bostik Cementone Water Seal 5L Waterproof Brick Stone Rain Damage Protection. The Cementone fast drying water-seal is a durable, water-repellent solution for porous external walls & fascias. The water seal from Cementone deposits a rainproof resin in the capabilities of the substrate which expands on reaction with residual moisture and almost completely reduces the rain penetration, whilst allowing the substrate to breathe.