Conformity

Grade

Material

(Alphabetical Order)

A Excellent

Butyl, Chemraz (Perfluoro Elastomer), CPVC (Chlorinated Polyvinyl Chloride), Cross-Linked Polyethylene (PEX), Durachlor-51, EPR, Ethylene-Propylene, Vinyl-Polysiloxane Exafine, Fluorosilicone, Glass, Hastelloy-C, HDPE (High-Density Polyethylene), Inconel, Kalrez, Kel-F, (PCTFE), Kynar, Millable (Polyurethane Rubber, Heat Cured Rubber, Heat Vulcanized Rubber), PEEK (Polyether Ether Ketone), Polycarbonate, Poly(Methyl Methacrylate) (PMMA) Resin, PVC, PVDF (Polyviniliden Fluoride), Santoprene (Thermoplastic Vulcanizates), Silicone, Stainless Steel 304/316, Teflon (Polytetrafluoroethylene), Titanium, Vamac (Ethylene Acrylic Elastomer), Viton (Fluoropolymer Elastomer)

B Good

ABS Plastic, Aluminum (Dry Ozone), Brass, Bronze, Copper, EPDM (Ethylene Propylene Diene Monomer Rubber), Flexelene (Polyolefin), LDPE (Low-Density Polyethylene), Polyacrylate, Polyethelyne, Polysulfide, Polyacrylate, Stainless Steel (Other Grades), Tygon, Tyvek

C Fair

Acetal (Delrin), Aluminum (Wet Ozone), Cast Iron, Galvanized Steel, Hypalon, Hytrel, Monel, Neoprene, Polyamide (PA), Polypropylene

D Poor or Very Poor

Buna-N (Nitrile), Magnesium, Natural Rubber (Very Poor), Nylon (Very Poor), Steel (Carbon, Mild) (Very Poor), Zinc and Zinc Alloy