These Forgefix Pipe Clips are made from heat resistant polypropylene, designed to withstand the temperature changes in most central heating systems. They are effective with temperatures of up to 100°C. They each come complete with a hardened masonry nail, which is easy to fix and durable. APPLICATION:Used when fitting most types of pipe work. Ensure when fitting that goggles are used. Polypropylene, also known as polypropene, is a thermoplastic polymer used in a wide variety of applications. An addition polymer made from the monomer propylene, it is rugged and unusually resistant to many chemical solvents, bases and acids.Select Option 11mm16mm22mm28mm Add to Basket Quantity