Dynamite® 222 White Acrylic Primer & Sizing is a premium-grade water-based wallcovering primer and sizing that properly prepares a wide range of surfaces prior to hanging any type of wallcovering, including pre-pasted materials. It has excellent hiding power that easily covers existing paint, wallcovering patterns, or color variations in the wall surface. This product can be tinted to match the background color of the wallcovering to avoid visible seams. Dynamite 222 provides a long-lasting protection barrier between the wallcovering and the wall surface. It protects the drywall like an oil-based primer and adheres to glossy surfaces like an acrylic primer.