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Liquid applied multi-purpose waterproofing coating: KÖSTER 21

Standing for “waterproofing in the 21st century” the product´s name expresses the combination of many advantages from different waterproofing materials and its applicability in a very broad range of application areas.

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Viscoplastic 2- component PU injection resin for the restoration of structural strength in cracks and joints . Solvent free, low viscosity. Compressive strength >80 N/mm² , tensile strength 14 N/mm².

Fields of application: In combination with KÖSTER IN 1 for the permanent sealing and bridging (where structural strength is required) of water bearing cracks and joints in concrete.It can be used without pre-injection for closing dry cracks and joints. KÖSTER IN 3 is used in cases where crack f lanks or unequal structural members have to be bonded together and acquire structural strength.



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