Breathable Masonry Waterproofing H2O Bloc 5 Litre
The ultimate in non-visible weather proofing for older porous masonry.
Applied by roller, brush or spray, the H2Obloc quickly forms a water impervious barrier on your brickwork.
The pore Structure of the of the cured H2O Bloc, allows the passage of water vapour, ensuring the Masonry can still breathe.
It is essential to allow retained moisture to evaporate out of the masonry in order to prevent spalling of the face brickwork , during periods of frost.
H20 Bloc data sheet.