A primer for mineral substrates before waterproofing with cementitious waterproofing slurries. In case of masonry restoration the product is used during substrate preparation for restoration plaster systems in order to harden the substrate and immobilize salts.
KÖSTER Polysil TG 500 is a low viscous, substrate solidifying, hydrophobizing combination product on a polymer / silicate basis for the protection of mineral substrates. On salt containing and moist substrates, it causes a reduction of the pore volume and thereby prevents the renewed formation of salt efflorescence.
KÖSTER Polysil TG 500 is a thin fluid product based on a polymers and silicates. On salt burdened and on damp substrates it leads to a reduction of the pore volume and decreases the likelyhood of new salt efflorescence development. It also increases the chemical and mechanical resistance of mineral building materials. Depending on the substrate, the product penetrates the surface up to 2 cm deep.
KÖSTER Polysil TG 500 also has strengthening and hydrophobing properties. The material is compatible with mortars, plasters, cementitious slurries, and concrete.
Application temperature min. + 5 °C
Specific gravity 1.03 g/cm³
Surface transparent, slightly sticky
Application of next layer:
-after 30 minutes – cementitious building materials
-after min 24 hours – acrylate and silicate paints