Brightside polyurethane is the most technically advanced one-part polyurethane available. Brightside now contains Teflon for better resistance to staining and abrasion. Brightside uses polyflow 4000, a unique polyurethane resin, which yields excellent flow and levelling characteristics as well as incredible abrasion and chemical resistance. Specially formulated to resist UV damage, this one part polyurethane give the look of a two part polyurethane with the application ease of a one part enamel.