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hydrin
Hydrin
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Common Name
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Hydrin
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ASTM D-2000 Classification
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CH, DK, DJ
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Military (MIL STD 417)
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SB
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Chemical Definition
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Epichlorohydrin
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General Characteristics
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Durometer Range (Shore A)
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40 - 90
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Tensile Range (P.S.I.)
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500 - 2500
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Elongation (Max. %)
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350
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Compression Set
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Good
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Resilience - Rebound
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Good
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Abrasion Resistance
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Good
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Tear Resistance
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Good
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Solvent Resistance
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Good
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Oil Resistance
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Excellent
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Low Temperature Usage (F°)
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-15° to -50°
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High Temperature Usage (F°)
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to 225°
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Aging Weather - Sunlight
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Good
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Adhesion to Metal
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Good
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Comment
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Epichlorohydrin is an outstanding polymer, exhibiting most of the better qualities of nitrile and neoprene, but having additional plus features: oil and solvent resistance is very good. Hydrin has especially low swell in gasoline; low temperature performance is better than either nitrile or neoprene, and offers much less torsional stiffness at sub zero temperatures; high temperature endurance is good up to 250°F.; resilience is good and compression set is fairly good in many compounds; abrasion is equivalent to the nitriles; and ozone weathering and water resistance are very good.
Epichlorohydrin is generally attacked by ketones, esters, aldehydes, chlorinated and nitro hydrocarbons.
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