| |
O-Ring Duro-meter
Hardness
|
This is an example of hardness as
the quality and hardness will very from one manufacture to another
according to the compounds used |
|
Shore 00 |
20 |
|
30 |
35 |
40 |
|
50 |
55 |
60 |
|
70 |
|
80 |
|
|
90 |
95 |
98 |
|
|
|
|
|
|
|
|
|
Shore A |
|
|
|
|
|
|
|
10 |
20 |
|
30 |
35 |
40 |
50 |
|
60 |
70 |
80 |
|
90 |
95 |
100 |
|
|
|
|
|
Shore D |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
19 |
22 |
29 |
35 |
|
45 |
55 |
|
65 |
|
75 |
| |
|
Softest |
|
|
|
|
Medium |
|
|
|
|
Medium Hard |
|
|
|
|
|
|
Hardest |
|
Rubber band: 35 Shore A
Rubber tire: 55 Shore A
Rubber shoe heel: 70 Shore A
Tool Box Wheel: 95 Shore A |
| |
| |
| |
Buna-N
(Nitrile/NBR)
Abrasion Resistance Good
Tearing
resistance Fair
Temperature range: -30 F to +230 F*
Synthetic Lube Resistance good
Compression Set
resistance
Fair |
One of the most common seals in airguns
Black in Color |
Viton
(Fluorocarbon)
Compression set low.
Temperature range: -20 F to +400 F* |
|
Viton ETP
(Viton Extreme)
Excellent chemical resistance vs. standard Viton
Other properties
similar to
standard Viton®.
Basic temperature range: -5 F to +400 F* |
|
Silicone
Compression set
resistance Good
Poor tear and abrasion
resistance strength.
Poor resistance to oils.
Temperature range: -65 F to +400 F* |
Not much use for this ring in airguns
Red In Color |
EPDM / EPR
(Ethylene Propylene)
Compression set
resistance Good
Abrasion resistance Good
Temperature range: -65 F to +250 F* |
|
PTFE
Excellent
temperature range.: -250 F to +450 F*
Various chemical and fuel resistance.
Low coefficient of friction.
Non-elastic.
Excellent tear and abrasion strength
Compression Set is Fair |
Good for CO2 wet or dry
White in Color |
Neoprene
(Chloroprene)
Good resistance
to petroleum oils.
Low compression set and good
abrasion strength..
Temperature range: -40 F to +225 F* |
|
Urethane
(polyurethane)
Excellent
wear/abrasion resistance.
Tearing
resistance Good
Low compression set & chemical
resistance.
Basic temperature range: -20 F to
+180 F* |
Do not require Back-Up Rings. Excellent Wear & Tear Resistance,
1000 to 3000 Pounds Max PSI Depending on Rating 00-70/00-90 |
Airguns, BB Guns, Pellet guns,
Air rifles, Air Gun. Crosman 2240, Crosman 2250, Crosman 160, Crosman 1322,
Gamo, Walther, Scott Air Arms, Beretta, Daisy, Colt, Chinese Air Guns
Chinese XS-B50 Chinese B21, 10 Meter practice target. Chinese Import Air
Guns B50, B51, B18, B21, B22, XS-B3, QB78, Co2, QB79, Target, Pump Repeater,
Airgun Repair Service, Air gun Repair Service,
Pellet Gun Service. Custom Main Springs, Airgun Lube, Airgun Repair, Air gun
Repair, Spring Grease
Copyright ©
2006-2007 airgunsmith .com all rights reserved |
|
