Viton® VTR-8500 is a developmental peroxide cured polymer intended to be an upgrade to Viton® GLT. VTR-8500 utilizes an Advanced Polymer Architecture technology which includes a new peroxide cure site along with an optimized molecular weight distribution designed to deliver a polymer which:- Cures exceptionally fast to a high state of cure
- Shows improved mold release/mold fouling properties compared to GLT and GLT 305
- Shows improved mold flow, less shear sensitivity, and lower extruder die swell for a ~65 Mooney FKM
- Shows excellent physical properties with high elongation in either the original or aging tests
- Shows similar to improved heat, fluids, and low temperature resistance compared to GLT
- Shows excellent compression set resistance with little (2 hr at 232°C ) or no postcure
It is recommended if mixing in an internal mixer to use at least a 70% load factor. The recommended process aid for VTR-8500 is 0.5 phr of Armeen® 18D. Information provided by manufacturer. |