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Two-component, hybrid polyurethane based, flexible sealing compound

  • Easy to apply
  • Thixotropic
  • Excellent resistance to chemicals acids, alkalis, salts, and other corrosive materials

Features and benefits

Cold-applied, elastomeric, twocomponent hybrid polyurethane-based sealing compound designed for detailing and repairing the Polyproof Ultra FB system and for filling imperfections on concrete surfaces.



POLYBIT® POLYPROOF EPU can be used for Corner detailing, sealing of overlaps and pile heads of the Polyproof Ultra FB system, to repair of the Polyproof Ultra Plus HDPE membrane, repair material for defects such as honeycombs, concrete blowholes, etc on concrete surfaces including vertical applications.
Available pack size: 2L

Documents and downloads

How to use


Pour the entire content of component B into the component A container and mix thoroughly and continuously for 2 to 3 minutes with a heavy-duty paddle mixer fitted to a high torque slow speed (300-400 rpm) drill to achieve a homogenous mixture


Apply the mixed sealing compound to the intended areas. The material should be applied to a minimum thickness of 2mm. 


Polyproof EPU is supplied in preweighed packs and part mixing is not recommended, as the cured product will not achieve its full properties even if there is a small variation in the mixing proportions. 

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Frequently asked questions

It is a cold-applied, elastomeric, two component
hybrid polyurethane-based sealing compound

Concrete must
be dried > 7 days

Shelf life is up to 6 months when stored
between 5 to 30ºC in accordance with the manufacturer’s