wa88WA88 Water Based Adhesive 15L $ 300.90. ARDEX WA 88 is a water-based adhesive for internal & external multi-purpose use free of hazardous organic solvents. For use with ARDEXThe WA postcode area, also known as the Warrington postcode area, [2] is a group of sixteen postcode districts in North West England, within nine post ese cover north Cheshire