FlexproofX® 1
1-component sealing compound

FlexproofX® 1 has been designed as an external building seal for temporary or permanent exposure to water.


FlexproofX® 1 has proven itself to be particularly durable. Its long-lasting sealing properties are the result of its special composition based on a patented, prepolymer mixture that prevents water absorption. The high bending and adhesive tensile strength values also make FlexproofX® 1 the ideal product for high loads with which cracks and joints (crack bridging tested up to 5mm at 4 bar), as well as surfaces can be kept permanently and securely watertight. It also dries extremely quickly.


The one-component sealing compound (with building regulations certifi cation) is suitable for use with or without reinforcement fabric as an external, strip-form seal for construction joints and crack-control joints. FlexproofX® 1 can also be used as a full-surface external seal. Its reactivity, in particular to hydroxyl groups (as they can also be found in concrete), makes FlexproofX® 1 the fi rst choice product for reinforced concrete constructions. Even non-mineral materials can be extremely well sealed with FlexproofX® 1. On glass and metal, etc., where no free hydroxyl groups area available, FlexproofX® 1 reacts on contact with water. And this is regardless of whether it is added, comes from air humidity or from a neighbouring substrate. The sealing effect always occurs. Its application is straight forward. The compound can be applied horizontally, vertically or above your head using a roller, a brush or a scraper. No primer is needed, the substrate can also be damp and it dries extremely quickly.

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