Warp's 4X3CC 4-Mill Clear Poly Film, 3'X200'"Warp'S" Polyethylene Sheeting Warp Bros., a family owned and operated company since 1924, and now in our third generation of family leadership, is still committed to producing GENUINE, TOP QUALITY, FULL WEIGHT PLASTICS for the home and industry. All Warp's Genuine Poly Cover Plastic Sheeting is guaranteed to be Full Weight, Full Measure and Thickness. always. Meets Building Code Specs. Warp's has made construction and consumer sheeting longer than