Rubber Compounding Materials
Vulcanization Materials
Activators
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Tradename
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Composition
Supplier
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Properties
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Function
& Compounding
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Elast-O-Cal C-75
75% CaO dispersion in chlorinated paraffin
Rhein Chemie Corporationï |
Sp.gr. 2.30; firm paste dispersion in a chlorinated paraffin binder (see calcium oxide)
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A specially designed desiccant for CPE and other polymers where peroxide cure systems are utilized; it will not reduce the effectiveness of the peroxide system which does occur with naphthenic based desiccants.
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Elast-O-Cal P-90
90% CaO in DOP
Rhein Chemie Corporationï |
Sp.gr. 2.70; wetted powder in DOP carrier (see calcium oxide)
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An efficient moisture absorber for all commonly used elastomers imparting excellent protection against porosity or blistering in rubber products produced in low-pressure, high-temperature cure systems such as microwave units, LCM, hot air cures or fluidize baths.
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Elastomag 100
Magnesium oxide
H.M. Royal, Inc.ï |
White powders. sp. gr, 3.2, surface area 100m2/gm, avg, sp gr, 2.5; shipped in 50# multiwall bags and PE pouches; protect from air and moisture.
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For halogenated elastomers; vulcanizing and curing; activator, acid acceptor.
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Elastomag 100
Magnesium oxide
Akrochem Corp.ï |
White powders. sp. gr, 3.2, surface area 100m2/gm, avg, sp gr, 2.5; shipped in 50# multiwall bags and PE pouches; protect from air and moisture.
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For halogenated elastomers; vulcanizing and curing; activator, acid acceptor.
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Elastomag 170 Powder
Magnesium oxide
Akrochem Corp.ï |
White powder and micro pellets. sp. gr, 3.2; sa avg 170 m2/gr,; avg ps 2.2μ; shipped: 50 lb multiwall bags and PE pouches in cartons; protect from air and moisture.
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For halogenated elastomers; vulcanizing and curing, activator, acid acceptor; high activity type MgO.
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Elastomag 60
Magnesium oxide
H.M. Royal, Inc.ï |
White powder; sp. gr, 3.2; surface area 60m2/gr; shipped in 50# multiwall bags; protect from air and moisture.
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For halogenated elastomers; vulcanizing and curing; activator, acid acceptor.
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Emery 531
Tallow fatty acid
Cognisï |
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Activator
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FE(Ca(OH)2)-68
68% calcium hydroxide in Carnauba wax
Rhein Chemie Corporationï |
Sp.gr. 1.64; free flowing bead. (see Calcium Hydroxide).
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FE(Ca(OH)2)-68 dispersion is a protected form of calcium hydroxide for general use in fluoroelastomer compounding; will improve dispersion, property consistency, and reduce mixing time; for safe handling of calcium hydroxide, FE (Ca(OH)2)-6
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FE(CaO)-75
75% calcium oxide in Carnauba wax
Rhein Chemie Corporationï |
Sp.gr. 2.09; free flowing bead. (see Calcium Oxide).
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FE(CaO)-75 dispersion is a protected form of calcium oxide for general use in fluoroelastomer compounding; wwill improve dispersion, property consistency, and reduce mixing time; for safe handling of calcium oxide, FE(CaO)-75 should be specified.
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FE(MAG-HA)-55
55% magnesium oxide in Carnauba wax
Rhein Chemie Corporationï |
Sp.gr. 1.60; free flowing bead.
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FE(MAG-HA)-55 dispersion is a protected form of magnesium oxide for general use in fluoroelastomer compounding; will improve dispersion, property consistency, and reduce mixing time.
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Fluorocal H; Fluorocal O
Calcium hydroxide; calcium oxide
HB Chemicalï |
Tightly controlled particle size distribution for calcium hydroxide H-20, H-30; uniform, consistent particle size calcium oxide O-15.
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Intended for FKM compounds where superior dispersion and consistency is required; several grades and packages available; allows single pass FKM mixing.
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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 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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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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Hallco CAOP
Calcium hydroxide/DOP dispersion
The HallStar Co.ï |
Sp.gr. 1.05; (80% calcium hydroxide) finely dispersed in DOP; free flowing powder, dustless.
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Recommended for mill and internal mixing; offers better dispersion and safety.
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HT-10
Zinc oxide
Hydro Technologies (Canada)ï |
General purpose ZnO; BET 8-11 m2; sp.gr. 5.6; cream to off-white powder
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Medium surface area ZnO; NR and SR activator; semi-reinforcing and hiding pigment with higher activity; useful in adhesive formulations as a latex activator and supplemental gelling agent.
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HT-2C
Zinc oxide
Hydro Technologies (Canada)ï |
General purpose ZnO; BET 4-7 m2; sp.gr. 5.6; cream to off-white powder
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NR and SR activator; semi-reinforcing and hiding pigment.
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HT-3C
Zinc oxide
Hydro Technologies (Canada)ï |
General purpose ZnO; BET 4-8 m2; sp.gr. 5.6; cream to off-white powder
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NR and SR activator; semi-reinforcing and hiding pigment.
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HT-Active
Zinc oxide
Hydro Technologies (Canada)ï |
High surface area ZnO; BET 40 m2; sp.gr. 5.6; cream to off-white powder; zinc content > 97%; Pb content <25 ppm
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A highly dispersible zinc oxide especially suited for semi-transparent and latex compounds; its higher activity benefits compounds with reduced zinc oxide content; when used at higher levels, improves compression set, crosslink density and reduces cure time.
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