Home » News » lored HDPE board » Thickness 5 to 20mm temporarytile HDPE board hot sale. High-Density Polyethylene (HDPE) HDPE is substantially more rigid than LDPE. In thin gauges, HDPE can be vacuum and pressure formed and is an excellent material for plastic welding. It has good chemical resistance, is available in FDA-, USDA- and NSF 51