Chem-Durance is an exclusive tubing formulation for the Masterflex peristaltic pump series. This co-extruded material has an inner liner that protects against chemically aggressive fluids, and a soft, flexible outer layer that allows it to be used in a peristaltic pump. Not only does this tubing offer excellent chemical compatibility, it also maintains good tubing life and durability, especially when operating under pressure. There is minimal spallation of the outer coating, requiring less maintenance on the pump. The flexible outer layer also allows for easier handling and loading into the pump head.