Primer Layer

Low-viscosity primer for mineral substrates

Brief Description

Wecryl 171 is a low-viscosity primer for mineral substrates before WestWood waterproofing or surfacing products are applied. Good penetrating power makes this product a superior deep-acting primer that also closes pores and stabilises the substrate.


2-component, fast-curing, low-viscosity, PMMA-based primer (PMMA = polymethyl methacrylate)

RAL colours

Wecryl 171
is available in the following standard colours:



Wecryl 171 is used for pre-treating (as primer and barrier) slightly absorbent mineral substrates (concrete, screed etc.) in preparation for the subsequent application of WestWood waterproofing / surfacing products. It offers improved effectiveness in closing pores and pinholes.

Properties and advantages

  • Easy and fast application
  • Low viscosity
  • Good residual dust control
  • Hydrolysis- and alkali-resistant
  • Fills pores, pinholes and cracks
  • Very good wetting and penetrating properties
  • Surface-stabilising


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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