HDPE lors – HDPE is available in many lors including natural, black, red, yellow, green, beige, blue, polar white, mocha brown, nutmeg, indigo, mercury gray, charcoal gray, slate gray, dolphin gray, sunshade, seafoam, and white/white. Engravable HDPE has an even wider variety of lor mbinations. HDPE sheet for O&P is available in natural.