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| American Seal & Packing |
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| Style | Type of Elastomer | Typical Shore A Hardness | Temperature Range °F(°C) | Relative Price |
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| Outer Heel | ||||
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| H1 | Hard, dense, rugged aramid fiber oil resistant - rubber composition | 95+ | -65 to +250 (-54 to +177) | Low |
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| H3 | Rigid dense - aramid fiber oil resistant - composition | 93 | -20 to +250 (-29 to +121) | Medium |
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| H5 | Hard, dense, special aramid fiber - high temperature rubber composition of ResistanŽ(special formulation of fluoroelastomer) | 95+ | -40 to +400 (-40 to +260) | High |
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| STH1 | Style H1 with metal reinforcement in heel, body | 95+ | -65 to +300 (-54 to +149) | Low |
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| Lip Element | ||||
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| L3 | Neoprene Nitrile | 55 | -40 to +200 (-40 to +93) | Medium |
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| L5 | Nitrile (replaces Style L10) | 77 | -20 to +250 (-29 to +149) | Low |
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| L7 | Nitrile | 89 | -30 to +300 (-34 to +149) | Low |
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| L8 | Neoprene - Fiber | 93 | -20 to +250 (-29 to +121) | Medium |
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| L16* | ResistanŽ (special formulation of fluoroelastomer) | 85 | -40 to +400 (-40 to +260) | High |
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| L17 | PTFE (Types TMA-L and TMA-S only) | -300 to +350 (-184 to +177) (+260)+500 intermittent | High | |
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| L50 | Alaska NitrileTM (special formulation of Nitrile Elastomer) | 85 | -50 to +250 (-46 to +121) | Medium |
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| L70 | Alaska NitrileTM (special formulation of Nitrile Elastomer) | 75 | -70 to +250 (-57 to +121) | Medium |
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| 1. | Other special application seal
materials are available - contact JM Clipper representative. | * | Style H5/L16 marked with narrow white band on heel body for identification purposes. |
| 2. | Specialty Materials for use with the F/L and SlipTite designs are available for varying service conditions. Contact your JM Clipper representative or our Nacogdoches customer service department. |