weberdry PUR seal

Product formerly named: formerly weberdry 350 PU


Liquid applied polyurethane waterproofing membrane uv resistant weberdry PUR seal is a 1-component liquid applied membrane made of polyurethane specially designed for waterproofing. Its outstanding performances allow protection and waterproofing of many areas such as:
€- Water supply channel
€- Water storage tanks
€- Flowerbeds and fountains
€- Flat rooftops
€- Crack bridging
€- Under-tile wet areas (pools, bathrooms, balconies, terraces...)
When applied, weberdry PUR seal creates a continuous watertight seal. It allows moisture vapor transmission. It has also excellent adhesion to almost any surface: concrete, metal, bitumen membranes, acrylic paints €¦It keeps outstanding performances for a very long period. 
weberdry PUR seal maintains its properties with a service temperature from -40ºC to + 90ºC. 
weberdry PUR seal is applicable by brush, roller or spray gun.


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

  • Brittle substrate must be primed with weberdry prime 310 PU primer
  • On stable, sound and well-prepared concrete surfaces, weberdry PUR seal diluted 5% with Xylene may be used as a primer coat
  • weberdry prime 310 PU or primer coat should be allowed to dry for 2 to 3 hours. 
  • All cracks and expansion joints are to be sealed with weber jointseal PU, at least 2 days before application of weberdry PUR seal.

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

Features and benefits

  • Easy to apply
  • Long-lasting waterproofing 
  • Permanent high elasticity
  • Good chemical resistance 
  • UV resistant


  • Once open the pail should be used as weberdry PUR seal cures by reaction with air moisture
  • Not to be apply over 0.5 mm per layer.
  • Tools are to be cleaned before polymerization with Xylene 

This product fits for these following projects