This water based deck adhesive is to be used as the main area adhesive with the ClassicBond system. Coverage 5 litres will cover approximately 20 - 25m2. Description This high strength low odour water based acrylic adhesive is specifically designed for use with ClassicBond and Firestone EPDM roofing membranes to a range of deck surfaces.   Designed to be roller applied to flat roof surfaces.   ClassicBond WBA will bond ClassicBond EPDM membrane to a range of conventional timber roof surfaces e.g. plywood, OSB. All boards should be resistant to moisture but not sealed with adhesive repellent waxes or other nonabsorbent systems. If in doubt a small test area should be laid.  Certain roof surfaces may not be suitable for use with this adhesive, for example, non-porous roof decks or those of low vapour permeability, i.e. metal or existing GRP.