We only sell top of the line, 100% solids, epoxy resin blends to ensure the highest quality installations while still protecting the environment. Epoxy resins are inherently free of odors, HAP, and volatile VOC emissions. They also provide superior adhesion and are virtually shrink free compared to styrene making them the best choice for CIPP applications. HammerHead® epoxy resins have a proven track record in conjunction with felt, woven or fiberglass liner materials.