Wessex System 325: Surface preparation

It is important to ensure that thorough surface preparation is undertaken to enable the Wessex System 325 epoxy to develop maximum properties. The presence of contaminants such as paint, dirt, grease and moisture will provide a barrier or release coat and thus prevent or minimise adhesion.


Surfaces must be dry, free of contamination and, ideally, abraded.


Any unsound material must be cut back to uncover sound concrete. The surface must then be degreased.

Floor tiles and coverings

The under surface must be dry, free of contamination and lightly abraded. Some products, e.g. Vamac, are supplied to these requirements, but the under surface must be checked before the Wessex 325 epoxy is applied. If cloth-backed floorings are used, any release agent must be removed before bonding. If in any doubt, degrease and then abrade before applying the adhesive.


All previous surface pre-treatments should be removed, taking the surface back to bare metal. This should be abraded and then degreased.

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