Cross posted this in the materials forum but i received nothing so i'm posting it here. << Mentor Note -- OP has been reminded not to cross-post at the PF >> So the application is in a pedal set for a racing simulator cockpit. The brake pedal has a high resolution pressure transducer that interprets the hydraulic pressure into an electrical signal via USB into the computer. The problem is that in order to provide a realistic brake force pedal resistance, i have to use rubber cylinders that counteract pedal movement. This is what gives me the pedal feel. The only problem is that the measured brake force lags behind pedal force due to the inherent damping within rubber. I wonder if theres something i can use (rubber or not) that has an extremely low damping characteristics, but is about as hard as a very low durometer polyurethane. I've tried different types of rubber, polyurethane foam, and solid polyurethane. Out of the 3, it seems normal rubber has the least damping, but it is not sufficient. Any tips?