How Our TurnKey™ Glass Is Made | Back-Painted Glass Video See how Bendheim’s back-painted glass is made! Our proprietary HardShell® color coatings are specifically formulated for non-porous glass surfaces and are baked on for superior quality and durability. They are available in a virtually unlimited range of colors and can be applied to any type of glass – fire- polished, matte, or textured. Ultra-White Back-Painted Glass Panels