A Boysen Flat Latex pail contains Boysen Permacoat Flat Latex, a 100% acrylic, water-based paint with excellent hiding and durability for interior and exterior surfaces like concrete, plaster, and drywall. It's designed for a matte, non-glossy finish that resists dirt, requires fewer coats, and is easy to apply and clean up. These pails are available in various colors and sizes, with the "Permacoat" line being a reliable and long-lasting option for various building surfaces.