Wecryl 337

2C Self-levelling Mortar

Brief Description

Wecryl 337 is a flexibilised self-levelling mortar for WestWood waterproofing and surfacing systems that are suitable for pedestrian and vehicular traffic. It is used as a protective coating on top of the waterproofing layer or as a high-build coating.


2-component, rapid-curing, flexibilised and filled PMMA-based (polymethyl- methacrylate) self-levelling mortar

RAL colours

Wecryl 337
is available in the following standard colours:

RAL 7035 light grey


Wecryl 337 is used as a protective or high-build coating. Its load-distributing effect protects the waterproofing layer against the impact of traffic. In the case of areas subject to mechanical loads and that are either free from cracks or have only hairline cracks, it is used as a high-build coating without the waterproofing layer. Furthermore it is used as an equalising mortar under WestWood systems to smooth over damaged patches and up to 10 mm height differences. Essentially it can be used in the same way for waterproofing balconies and multi-storey car parks.

Properties and advantages

  • Versatile product – can be used as waterproofing protection and high-build layer
  • Product for areas exposed to mechanical loads (pedestrians, vehicles)
  • More manageable and convenient application quantities
  • Time-saving on account of easy mixing process that does not require special equipment
  • Fully bonded to the substrate, therefore no flow paths for water
  • Easy, rapid, dust-free application
  • Fast-curing
  • Can also be applied at sub-zero temperatures
  • Can be applied to almost all substrates, including variable substrates
  • (when combined with WestWood Primers)
  • Partial quantities can be applied
  • Solvent-free


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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