CMI WaterGuard 390 is a ready-to-use, transparent, solvent-based impregnator for use in the protection of natural or synthetic stones, porous tiles and masonry against water staining. It reduces water absorption of the substrates whilst allows water vapour permeability to breathe. It is suitable to be used at both internal and external area.
- Moisture sealer for natural stones, quarry tiles, terrazzo, facing bricks etc.
- Water-repellant coating for treatment on cementitious tile grout.