Rubber Compounding Materials
Vulcanization Materials
Activators


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Function & Compounding


Ekaland MMBI
Methyl-2-mercaptobenzimidazole
Harwick Standard Distribution Corporation
ï

Beige colored powder sp.gr. 1.25;melt point 273C

Acts as an activator in presence of basic accelerators and retarder in presence of acidic accelerators-especially dithiocarbamates


Elast-O-Cal 80
80% CaO in hydrotreated naphthenic oil binder
Rhein Chemie Corporation
ï

Sp.gr. 2.20; firm paste dispersion in a high flash hydrotreated naphthenic oil binder (see calcium oxide)

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


Elast-O-Cal 80FDA
80% Codex grade CaO dispersion in USP grade white
Rhein Chemie Corporation
ï

Sp.gr. 2.25; firm paste dispersion in a mineral oil binder (see calcium oxide)

Similar in function to Elast-O-Cal 80 except Codex grade calcium oxide is used in a binder of USP grade white mineral oil; it is designed for applications involving food and liquid contact such as potable water contacting items andfood handling belting.


Elast-O-Cal 80HT
80% CaO paste dispersion in paraffinic oil binder
Rhein Chemie Corporation
ï

Sp.gr. 2.25; firm paste dispersion in a 580°F flash point binder (see calcium oxide)

Similar to Elast-O-Cal 80 in function except the 580°F binder allows higher temperature curing operations without oil volatilization.


Elast-O-Cal 90
90% calcium oxide in oil binder
Rhein Chemie Corporation
ï

Sp.gr. 2.73; off-white wetted powder

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 fluidized bed units.


Elast-O-Cal C-75
75% CaO dispersion in chlorinated paraffin
Rhein Chemie Corporation
ï

Sp.gr. 2.30; firm paste dispersion in a chlorinated paraffin binder (see calcium oxide)

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.


Elast-O-Cal P-90
90% CaO in DOP
Rhein Chemie Corporation
ï

Sp.gr. 2.70; wetted powder in DOP carrier (see calcium oxide)

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.


Elastomag
Magnesium oxide
Rohm and Haas
ï

Sp.gr. 3.38; white, odorless, non-toxic, powder; fineness, 99.9% passes 325-mesh screen.

SR, latex activator; processing and curing aid; acid acceptor.


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.

For halogenated elastomers; vulcanizing and curing; activator, acid acceptor.


Elastomag 100
Magnesium oxide
Rohm and Haas
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.

For halogenated elastomers; vulcanizing and curing; activator, acid acceptor.





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.

For halogenated elastomers; vulcanizing and curing; activator, acid acceptor.


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.

For halogenated elastomers; vulcanizing and curing, activator, acid acceptor; high activity type MgO.


Elastomag 170 Powder
Magnesium oxide
Rohm and Haas
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.

For halogenated elastomers; vulcanizing and curing, activator, acid acceptor; high activity type MgO.


Elastomag 30
Magnesium oxide
Rohm and Haas
ï

White powder; sp. gr, 3.2; surface area 30m2/gr; shipped in 50# multiwall bags; protect from air and moisture.

For halogenated elastomers; vulcanizing and curing; activator, acid acceptor.


Elastomag 60
Magnesium oxide
Rohm and Haas
ï

White powder; sp. gr, 3.2; surface area 60m2/gr; shipped in 50# multiwall bags; protect from air and moisture.

For halogenated elastomers; vulcanizing and curing; activator, acid acceptor.


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.

For halogenated elastomers; vulcanizing and curing; activator, acid acceptor.


Elastomag 90
Magnesium oxide
Rohm and Haas
ï

White powder; sp. gr, 3.2; surface area 90m2/gr; shipped in 50# multiwall bags; protect from air and moisture.

For halogenated elastomers; vulcanizing and curing; activator, acid acceptor.


Emery 531
Tallow fatty acid
Cognis
ï

Activator


FE(Ca(OH)2)-68
68% calcium hydroxide in Carnauba wax
Rhein Chemie Corporation
ï

Sp.gr. 1.64; free flowing bead. (see Calcium Hydroxide).

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


FE(CaO)-75
75% calcium oxide in Carnauba wax
Rhein Chemie Corporation
ï

Sp.gr. 2.09; free flowing bead. (see Calcium Oxide).

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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Suppliers listed
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Harwick Standard Distribution Corporation

Rhein Chemie Corporation

Rohm and Haas

H.M. Royal, Inc.

Akrochem Corp.

Cognis

     

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