Structural Waterproofing

Koster KBE Liquid Film is a highly elastic, solvent-free sealing compound designed for priming substrates and detailing complex areas. Solvent-free, highly elastic bitumen / rubber based sealing compound. For high quality external waterproofing of construction members in ground contact, such as basements. Elongation: > 900%

Two-component, compression -resistant, elastic, fibrated, polymer modified bitumen thick film sealant for the secure waterproofing of buildings in accordance with DIN EN 18533, such as basements. Specially designed for spray application and therefore suitable for professionals.

Koster NB 1 Grey is a BBA Approved mineral based, sulphate resistant waterproofing system for positive and negative side waterproofing against pressurised water. It contains migratory crystallising and capillary-plugging agents. It can be used for waterproofing against ground moisture, and for non-pressurised and pressurised water. Waterproofing done with Koster NB 1 Grey is characterised by excellent resistance to pressure and abrasion as well as chemical and sulphate resistance.

Koster Polysil TG 500 is a thin liquid based on polymers and silicates. On salt burdened and on damp substrates it leads to a reduction of the pore volume and decreases the likelihood 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. Koster Polysil TG 500 also has strengthening and hydrophobing properties. The material is compatible with mortars, plasters, cementitious slurries and concrete.

Koster Repair Mortar Plus is a watertight, fast setting, slightly expanding repair mortar with excellent adhesion even to old building material substrates. With the addition of Koster SB Bonding Emulsion, it can be used as PCC (Polymer-modified cement concrete) mortar.

Koster SB Bonding Emulsion is a universally usable synthetic liquid for all cementitious mortars, plasters and sealing slurries. Koster SB Bonding Emulsion is solvent, plasticiser, and filler-free. When added to mineral based systems, the synthetic liquid increases elasticity and flexibility and reduces water absorption. Multi-purpose liquid plastising dispersion for use with all cement-based mortars, plasters and sealing slurries. Solvent free, plasticiser and filler free. The product provides a plastifying effect, increases the elasticity and reduces the water absorption of mineral systems. It is waterproof after full cure. Typical field of application; as an additive for waterproofing with NB 1 Grey.