| RATING |
RECOMMENDED
AND APPROVED |
*A |
Fluoroelastomer (FKM) - Viton |
| A |
Epichlorohydrin (ECO/CO) - Hydrin |
| *AA |
Fluoro Ethylene Propylene (FEP) - Teflon |
A |
Isobutylene Isoprene (IIR) - Butyl |
| A |
Perfluorinated Elastomer (FFKM) - Chemraz |
| A |
Perfluorinated Copolymer Elastomer (FFKM) - Kalraz |
| A |
Fluorinated Copolymer (FXM) - Fluoraz |
| *A |
Gylon - 3504, 3540, 3545, 3510 - Garlock Gylon |
*Best for Service |
|
|
NOT RECOMMENDED AND NOT
APPROVED |
NR |
Nitrile (NBR) - Buna-N |
NR |
Nitrile (NBR) - Buna-N Blends |
NR |
Hydrogenated Nitrile (HNBR) |
NR |
Ethylene Acrylic (EAM) - (EA) - Vamac |
NR |
Chlorinated Polyethylene (CPE) (CM) |
NR |
Chlorosulfanated Polyethylene (CSM) - Hypalon |
NR |
Silicone (VMQ) |
NR |
Chloroprene or Polychloroprene (CR) - Neoprene |
NR |
Nitrile - Black (NBR) |
NR |
Nitrile - White (NBR) |
NR |
Styrene Butadiene (SBR) - Buna-S |
NR |
Polyacrylate (ACM) |
NR |
Polyurethane (AU) (EU) |
NR |
Polybutadiene or Butadiene (BR) |
NR |
Modified Polyethylene (AQP) - Aero Quip |
NR |
Synthetic Isoprene (IR) - Synthetic Rubber |
|
|
|
NOT RECOMMENDED BUT MARGINAL |
B |
X-Link Polyethylene (XLPE) |
B |
Ethylene Propylene (EPDM) |
B |
Ethylene Propylene (EP) |
