Koster Mortar Tight is a waterproofing liquid additive which prevents the transmission of water through renders, screeds, and/or sealing slurries. The additive Improves the density of the mortar structure, making mortar water repellent (hydrophobic), while providing self-healing of microcracks through crystallization. Mortar Tight increases the
Koster Mortar Tight is a waterproofing liquid additive which prevents the transmission of water through renders, screeds, and/or sealing slurries.
The additive Improves the density of the mortar structure, making mortar water repellent (hydrophobic), while providing self-healing of microcracks through crystallization.
Mortar Tight increases the impermeability of mortars and slurries against moisture, dampness, hydrostatic pressure and driving rain.
Key features
Waterproof liquid additive
Positive and negative side waterproofing
Free of chlorides and nitrates
Substrate does not have to be continually kept wet to cure
Inhibits salt movement in the substrate when used as a system together with Koster Polysil TG 500
Easy application
Seamless application
Suitable for new construction and repair on existing structures
Horizontal and vertical application
Koster Mortar Tight, is free from chlorides and nitrates
Koster Mortar Tight is the perfect solution for waterproofing:
