KEY MORTAR WALL SYSTEM is a 100% solids, vertical grade troweled epoxy mortar designed to form a high impact, abrasion and corrosion resistant mortar for vertical surfaces. Typical uses for Key Mortar Wall System are added impact resistant in industrial areas, patching and surfacing deteriorated concrete walls, drainage trenches. Key Mortar Wall System requires the use of appropriate epoxy primer and bonds well to concrete, concrete block, metal and wood substrates.