Hot Melt Hoses: The core of our Hot Melt heated hoses is made of high grade Telflon (PTFE) tubing and reinforced by stainless steel (304) that is braided around the outer surface of the core. The PTFE tubing is highly resistant to acids, solvents and hydrocarbons whereas, the stainless steel braid ensures resistance to pressure, flexing, vibration, and heat. All the Trasy’s Melt hoses go through pressure testing at twice the recommended operating pressure using water to ensure there are no defects. The outside of a standard hose is covered in a braided polyester which keeps you hot melt hoses from getting abrasions. There are additional materials offered for hose coverings such as, neoprene for water resistance, braided silicon treated with fiberglass for high heat resistance and coloured polyesters also available to help aid you in identification. If you have the original number for the hose from the manufacturer on the dispensing equipment then we can cross reference the hose for you.