HST-1 is a multi-layer single-side (MLS) heat shrink tubing from DSG Canusa. It is a medium wall tubing that is highly flexible and offers superior abrasion and chemical resistance. In order to provide optimal protection and environmentally friendly performance, HST-1 is both flame-retardant and halogen-free. It has excellent resistance to moisture and is UL approved. HST-1 is widely used to insulate and protect cables, wires, and other industrial products from environmental hazards and to provide an aesthetically pleasing finish.