Dynamite® 221 Clear
Acrylic Primer & Sizing
Dynamite® 221 Acrylic Primer & Sizing is a water-based wallcovering primer and sizing formulated to provide trouble-free wallcovering installations over difficult-to-bond surfaces such as existing vinyl wallcovering, glossy paint, foil, Mylar®, ceramic tile and glass. On porous surfaces such as drywall and plaster, Dynamite® 221 Acrylic Primer & Sizing reduces the degree of porosity, allowing the adhesive to bond uniformly to the wall surface. Dynamite® 221 also provides a greater level of slip when matching patterns and butting seams.