Silastic LS-2840, a 40 durometer, uncatalyzed fluorosilicone rubber base from Dow Corning, outperformed fluorocarbon rubber in a recent independent study conducted by at Rapra Technology. Silastic LS-2840 is engineered for automotive electrical protection, fluid delivery and static sealing applications such as seals, gaskets and hoses. The material retains its properties over a wide temperature range, is resistant to solvents, and can be moulded, extruded and calendared, and is easily pigmented to meet design requirements. It can also be blended with other durometer fluorosilicone rubbers to produce materials with intermediate durometers and proprieties.