Sigma-Aldrich
Platinum-rhodium alloy, Pt90Rh10
Platinum-tungsten alloy, Pt92W8
Platinum/Iridium
Polyacrylamide/Acrylate
Polyamide-Nylon 12
Polyamide-Nylon 12-30% Glass Fiber Reinforced
Polyamide-Nylon 4, 6