weberdry 390 PU

Product formerly named: formerly Waterproof.390 PU


One-component cold applied polyurethane waterproofing coating weberdry 390 PU is liquid-applied polyurethane waterproofing membrane highly permanent elastic, cold applied and cold curing, one component polyurethane membrane used for long lasting waterproofing.
weberdry 390 PU is based on pure elastomeric hydrophobic polyurethane resins, which result in excellent mechanical, chemical, thermal and natural element resistance properties.
Cures by reaction with ground and air moisture.


Surface of application

Wall, Floor, Roof

Available packaging

Lebanon Syria Jordan KSA UAE Qatar Kuwait Oman
6 kg 6 kg 6 kg 6 kg 6 kg 6 kg 6 kg 6 kg
25 kg 25 kg 25 kg 25 kg 25 kg 25 kg 25 kg 25 kg

Documentation and brochures

To know before applying

  • Careful sealing of existing cracks and joints before the application is extremely important for long lasting waterproofing results with weber jointseal PU or weber jointseal PU MC sealant
  • Brittle substrate must be primed with weberdry prime 310 PU.
  • On stable, sound and well-prepared concrete surfaces, no primer is necessary.

For more information please refer to the technical data sheet of the product

Features and benefits

  • Waterproofing of wet areas (under tiling)
  • Easy to apply
  • Seamless membrane
  • Full surface adherence
  • Resistant to water and frost


  • Once open the pail should be used as weberdry 390 BPU cures by reaction with air moisture
  • weberdry 390 BPU is slippery when wet. In order to avoid slipperiness, sprinkle suitable aggregates onto the still wet coating to create an anti-slip surface

This product fits for these following projects