Integra Doors offers MDF powder-coated doors in a variety of colors and styles. The doors are coated with an epoxy powder and then heated, which causes the powder to bond to the door's surface, completely sealing the door. This produces a tough, attractive product that has no seams in which bacteria can hide, Integra Doors adds. Powder coating doors also eliminates issues caused by delaminating vinyl or yellowed, cracked or chipped paint.