MAPEI SM Primer Fast is a ready-to-use, fast-drying, quick-tacking, waterbased, pressure-sensitive, nonhydrolyzable latex primer for use under MAPEI’s peel-and-stick sheet membranes on residential and commercial indoor or outdoor floors. MAPEI SM Primer Fast greatly increases the bond of MAPEI’s peel-and-stick sheet membranes to concrete, plywood and other approved, properly prepared floors. It can be applied with a roller or brush, is white in color and dries clear.

• Fully compatible with MAPEI's peel-and-stick sheet membranes, notably Mapeguard 2
• Easy to apply with roller or brush
• High coverage rate, for economical installation
• Fast-drying, allowing sheet membrane installation after about 15 minutes
• Dries clear, so that layout lines remain visible after application
• Bonds to a variety of substrates