Wethan 141

1C PUR primer for mineral substrates

Brief Description

Wethan 141 is a one-component product used to prime absorbent substrates before these are subsequently coated with Wethan polyurethane waterproofing systems.


1-component, fast-curing polyurethane-based resin primer

RAL colours

Wethan 141
is available in the following standard colours:



Wethan 141 is generally used as a fast-curing primer for absorbent substrates such as concrete, mortar, wood etc., before they are subsequently waterproofed with Wethan polyurethane systems. Wethan 141 is used to close pores in the substrate. It also improves the adhesion of the coating material while at the same time stabilising the substrate.

Properties and advantages

  • Low viscosity
  • Easy and fast application
  • Fast-curing
  • Good penetrating properties, even at low temperatures
  • Resistant to a wide range of chemicals


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Postal address

WestWood Liquid Technologies Ltd.
31 Morris Road,
Nuffield Industrial Estate
Poole, Dorset BH17 0GG
United Kingdom

+44 800 808 5480

Trade Association

  • LRWA
  • DIBt
  • NFRC
  • EOTA
  • BPA
  • BBA