rubber blind plug grommet, mounting grommet rubber, and rubber air bladders
Design Engineer's Guide to Rubber Compounds
| NR - NATURAL |
NBR - NITRILE |
EPDM - ETHYLENE PROPYLENE |
| Good low temperature properties and long flex life. High resilience, elongation and tensile strength, and wide hardness range. Poor resistance to ozone, heat, oil and general weathering. |
Resistant to attack from mineral oils, petroleum solvents, fair resistance to heat and aging. Relatively poor cold resistance. Cannot be used where weather resistance is required. |
Excellent resistance to weather and ozone. High tensile strength. Good low temperature properties. Resistant to non-flammable hydraulic fluids (Skydrol). Non-resistant to mineral oils. |
| CR - NEOPRENE |
VMQ - SILICONE |
FKM - FLUOROELASTOMER |
| Good heat, flame, aging and weather resistance. Moderate chemical and oil resistance. Long flex life. Poor resistance to aromatic hydrocarbons. |
Excellent electrical properties, resistant up to very high temperatures and flexible to very low temperatures. Poor tensile and abrasion resistance compared to other elastomers. |
Excellent long term heat resistance and aging. Excellent hot oil, aliphatic and aromatic hydrocarbon resistance. Not very elastic. High cost polymer. |
| SBR |
URETHANE |
VITON |
| Non-oil resistant, economically priced synthetic rubber - especially noted for its low water absorption properties. |
Outstanding tensile and abrasion qualities - excellent resistance to wear, ozone, oxygen, kerosene & gasoline. |
In addition to its ability to withstand extreme temperatures, it is also fuel and oil resistant. |
|
BUTYL |
EPDM |
HYPALON |
NATURAL
RUBBER |
NEOPRENE |
| ASTM
D -2000 Classification |
AA |
BA |
CE |
AA |
BC |
| Durometer |
40-75 |
30-100 |
55-95 |
30-90 |
30-90 |
| Elongation |
F |
G |
F |
E |
E |
| Heat
Aging |
E |
E |
G |
G |
VG |
| Sunlight Aging |
G |
E |
E |
P |
G |
| Lubricating Oil Resistance |
P |
P |
G |
P |
G |
| Aromatic Oil Resistance |
P |
P |
P |
P |
F |
| Animal-Vegetable Oil Resistance |
E |
P |
G |
F |
E |
| Flame Resistance |
P |
P |
E |
P |
G |
| Tear Resistance |
G |
G |
E |
G |
G |
| Abrasion Resistance |
G |
G |
E |
E |
E |
| Compression Resistance |
F |
F |
G |
G |
F |
| Dielectric Strength |
G |
G |
G |
E |
F |
| Maximum Temperature |
250 |
350 |
250 |
210 |
260 |
| Minimum Temperature |
-50 |
-50 |
-35 |
-45 |
-50 |
|
NITRILE |
SILICONE |
SLYRENE |
URETHANE |
FLUOROE-LASTOME |
| ASTM D -2000 Classification |
BF |
GE |
AA |
BG |
HK |
| Durometer |
40-95 |
45-85 |
40-90 |
20-100 |
70- |
| Elongation |
G |
F |
G |
E |
G |
| Heat Aging |
E |
E |
G |
E |
E |
| Sunlight Aging |
G |
E |
P |
E |
E |
| Lubricating Oil Resistance |
E |
F |
P |
G |
G |
| Aromatic Oil Resistance |
G |
P |
P |
G |
G |
| Animal-Vegetable Oil Resistance |
G |
G |
F |
F |
G |
| Flame Resistance |
P |
F |
P |
P |
G |
| Tear Resistance |
F |
P |
F |
E |
F |
| Abrasion Resistance |
G |
P |
G |
E |
F |
| Compression Resistance |
G |
F |
F |
E |
G |
| Direct Strength |
P |
G |
E |
F |
G |
| Maximum Temperature |
280 |
550 |
215 |
250 |
500 |
| Minimum Temperature |
-40 |
-150 |
-50 |
-40 |
-40 |
| P = POOR |
F = FAIR |
G = GOOD |
VG = VERY GOOD |
E = EXCELLENT |
Jefferson Rubber Works, Inc. is a manufacturing agent building rubber blind plug grommet, mounting grommet rubber, and rubber air bladders. |
17 Coppage Drive Worcester, MA 01603 PH: (508) 791-3600 FX: (508) 798-2675
Jefferson Rubber Works, Inc. produces rubber, rubber grommets, rubber tubing, rubber grommet, rubber seal, rubber seals, rubber bushings and rubber molding in massachusetts MA. Our staff brings a broad spectrum of knowledge and keen insight to the operation, with years of experience in the rubber molding industry.
