Capaproof PU W

Dual-component polyurethane waterproofing membrane, without solvents (suitable for contact with drinking water)

• Solvent-free
• Approvedfor contact with drinking water
• High elasticity
• High performance

100% solids, dual-component polyurethane elastomer that produces a waterproof, aromatic, continuous, elastic, thixotropic membrane that adheres completely to the substrate without joints or overlaps as well as being 100% watertight, with properties that make it excellent for application in areas that must be watertight, not exposed to sunlight, and in contact with water for human consumption.
The material complies with the parameters analysed under Spanish Royal Decree 140:2003 and its amendments included in Royal Decree 902/2018. It has WRAS approval for the British market for contact with water for human consumption under BS-6920.
It is CE marked on the basis of a Declaration of Performance (DoP) drawn up in accordance with EU regulation 305/2011 (89/106/EC).


Polyurethane membrane system for waterproofing and coating in:
• Tanks, reservoirs or container elements, concrete substrates, and where there is contact with potable water (not exposed to UV rays).
NOTE: consult our technical department for application on other types of substrates or settings.


It comes in a kit comprising 12.2 kg + 2.8 kg metal drums.

Recomended thickness and consumption

The recommended thickness of the Capaproof PU DW membrane is between 1.5 to 2 mm thick, therefore the yields of the product will be between 2.05 to 2.75 kg/m2.


The recommendations for use are based on our knowledge and experience. The technical data have been obtained under normal laboratory conditions and may vary depending on the conditions of installation. As the conditions of application are beyond our control, the information in this sheet does not imply any liability on the part of the company.


Declaraciones Medioambientales

Concienciados con el medioambiente