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Chemical Information Overview  |  Chemical Product  |  Chemical Raw Material  |  Chemical Company
Akrochem Antioxidant 58
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2-Mercapto-4(5)-methyl benzimidazole, zinc salt
61617-00-3
Antioxidant 58 is a non-staining antioxidant that can be used in white or dark colored rubber compounds resulting in cured protection against oxygen, heat crazing, and rubber poisoning by metals.
It is not effective for antiflexcracking (except in polychloroprene where it markedly improves flexcracking resistance) or antiozonant conditions.
Antioxidant 58 can exhibit a brightening effect on transparent goods if not used in excess of 0.50 phr.
Antioxidant 58 is primarily used to improve rubber vulcanizate heat resistance.
It can be used at a 1.5 to 4.0 phr level for this purpose.
Protection afforded by this antioxidant depends to a large extent on the efficiency of the curing system.
It is only moderately effective when used alone in sulfur cured compounds.
It helps provides maximum protection in thiuram-cured and peroxide-cured vulcanizates for oxygen, heat and steam.
Superior aging synergistic effects can be obtained when Antioxidant 58 is used in conjunction with a phenolic or amine antioxidant.
Antioxidant 58 should not be used in food contact applications as it can impart a bitter taste to food.
1.5-4.0 phr
Appearance White powder
Specific Gravity 1.75
Melting Point Decomposes above 300ЎЖC
Storage Stability Over two years
Industrial field additive, plastic, polymer, resin, monomer
Akrochem Chemical Co
Phone 330-535-2100; 800-321-2260
Fax 330-535-8947
Homepage www.akrochem.com
E-mail kristenspurlock@akrochem.com
Address 255 Fountain St., Akron, OH 44304-1991
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