Rubber Compounding Materials
Vulcanization Materials
Activators
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Tradename
Composition
Supplier
ò
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Properties
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Function
& Compounding
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Zinkoxyd Aktiv
Zinc oxide
Lanxess Corporationï |
Sp. gr, 5.0; white to light yellowish powder; zinc oxide content min. 93; BET surface area approx. 45 m2/g; shipped: bag.
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A very highly disperse activator; excellent for the manufacture of semi transparent rubber goods or goods with reduced zinc oxide content; when added at high levels imparts improved shape retention and provides highly elastic vulcanizates; used as an activator in latex compounds resulting low levels of zinc in latex compounds
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Dynamide
Urea powder formulated to improve processing and functionality.
Littlern Corporationï |
Sp.gr. 1.34; fine white powder; avg. particle size less than 10 micron.
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Activator for nitrogen blowing agents; lowers decomposition temperature; reduces odor produced by some blowing agents; secondary accelerator; component of nitrosamine-free curing systems.
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Mor-Cal 90
ECM Chemicals, LLCï |
Sp.gr. 2.61 (typical); 90% by weight, powdered dispersion of pulverized CaO in oil; available in 5-25 lb. perweighs
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Desiccant; minimizes porosity due to moisture in LCM rubber extrudates.
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Mor-Cal 95
ECM Chemicals, LLCï |
Sp.gr. 2.91 (typical); 95% by weight, powdered dispersion of pulverized CaO in oil; available in 5 up to 25 lb preweighs
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Desiccant; minimizes porosity in rubber compounds due to moisture.
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TEA-DLC-A
72% triethanolamine on silica powder
Natrochemï |
Sp.gr. 1.30; dustless powder; shipped: bag.
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NR, SBR activator; neutralizes clay acidity; add directly; incorporates rapidly.
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Natro-Cel TATM-A
72% Triallyl Trimelliate on silica powder
Natrochemï |
Sp.gr. 1.15;Dustless powder
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Excellent activator for cured EPDM and CPE.
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SR 206 DLC-A
Ethylene dimethacrylate 72% liquid on silica powder
Natrochemï |
Sp.gr. 1.05, off-white dustless powder polymerizable; shipped bag.
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For peroxide cure of BR, CR, EPDM, EPM, IR, NBR, acrylics, urethanes, plasticizers during mixing; hardener.
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Natro-Cel 35-A
72% trimethyl propane trimethacrylate on silica powder
Natrochemï |
Sp.gr. 1.23; dustless powder
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Co-agent for peroxide cured elastomers
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SR 203 DLC-A
72% liquid tetrahydrofurfuryl methacrylate on silica powder
Natrochemï |
Off-white dustless powder; shipped bag.
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Vulcanizing coagent for peroxide cure, plasticizer during mixing; hardener.
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Parasec R
Calcium oxide (75% active)
Parabor Industria E Comercio de Produtos Quimicos LTDAï |
Creamy-gray powder; sp.gr. 2.20.
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Dessicant in compounding for continuous cures; prevents porosity in rubber vulcanizates; acceleration activator.
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Parax Fluor
High purity calcium hydroxide
Parabor Industria E Comercio de Produtos Quimicos LTDAï |
Sp.gr. 2.10; white powder.
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Used in fluoroelastomers.
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Paramag O
Magnesium oxide
Parabor Industria E Comercio de Produtos Quimicos LTDAï |
Fine white powder; sp.gr. 3.30.
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Activator - acid acceptor for CR and fluoroelastomers.
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Actone
Surface coated urea
Parabor Industria E Comercio de Produtos Quimicos LTDAï |
Fine white powder; sp. gr. 1.32; slightly hygroscopic.
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Activator for blowing agents; reduces odor of DNPT blowing agents; activator for MBT, MBTS and dithiocarbamates.
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Grade 185
Zinc oxide
Perl Pigments, LLCï |
ZnO-99.3%, Pb-.09%, Fe-.02%, CD-.03%, sulfur-.10%, insoluble-.08%.
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Accelerator, activator, vulcanizer
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Grade 318 American Process
Zinc oxide
Perl Pigments, LLCï |
ZnO-99.3%, Pb-.09%, Fe-.02%, CD-.03%, sulfur-.10%, insoluble-.08%.
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Accelerator, activator, vulcanizer
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Grade 318T American Process
Zinc oxide treated
Perl Pigments, LLCï |
ZnO-99.3%, Pb-.09%, Fe-.02%, CD-.03%, sulfur-.10%, insoluble-.08%.
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Accelerator, activator, vulcanizer
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Grade 312
Zinc oxide
Perl Pigments, LLCï |
ZnO-99.3%, Pb-.09%, Fe-.02%, CD-.03%, sulfur-.10%, insoluble-.08%.
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Accelerator, activator, vulcanizer
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Polydex PPD(ZNO)75
75% zinc oxide in light process oil
Polychem Dispersionsï |
Sp.gr. 2.43; zinc oxide in a paste form.
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Paste form for better incorporation in soft compounds or for late mixer additions.
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Polydox C-80
80% CaO in a napthenic oil binder
Polychem Dispersionsï |
Sp.gr. 2.07; calcium oxide paste dispersion
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An efficient moisture absorber for all commonly used elastomers giving protection from porosity or blistering of rubber products produced in low or high-temperature cure systems.
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Polydox C-90
90% CaO, oil treated
Polychem Dispersionsï |
Sp.gr. 2.43; calcium oxide, oil treated in a powder form.
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Similar to Polydex C-80; is also used as a dessicant in vinyl plastisols
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