Sigma-Aldrich
Platinum-rhodium alloy, Pt90Rh10
Platinum-tungsten alloy, Pt92W8
Platinum/Iridium
Plumieride
Polyacrylamide/Acrylate
Polyamide-Nylon 12
Polyamide-Nylon 4, 6
Polyamide-Nylon 6