Rubber Compounding Materials
Vulcanization Materials
Activators


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Kenmix
Red lead/N 5/1
Kenrich Petrochemicals, Inc.
ï

Sp.gr. 3.82

Activator in paste form in Kenflex N.


Kenmix
Red lead/P 5/1
Kenrich Petrochemicals, Inc.
ï

Sp.gr. 3.82

Activator in paste form in Kenflex P.


Kenmix
Red lead/N 9/1
Kenrich Petrochemicals, Inc.
ï

Sp.gr. 4.93

Activator in paste form in Kenflex N.


Kenmix
Red lead/P 9/1
Kenrich Petrochemicals, Inc.
ï

Sp.gr. 4.93

Activator in paste form in Kenflex P.


Kenmix
Red lead/Sundex 790 9/1
Kenrich Petrochemicals, Inc.
ï

Sp.gr. 4.81

Activator in paste form in Sundex 790.


Kenmix
Red lead/Sunpar 2280 9/1
Kenrich Petrochemicals, Inc.
ï

Sp.gr. 4.7

Activator in paste form in Sunpar 2280.


Kenmix
Litharge/N 9/1
Kenrich Petrochemicals, Inc.
ï

Sp.gr. 5.11

Activator in paste form in Kenflex N.


Ken-Zinc
Zinc oxide - bar form
Kenrich Petrochemicals, Inc.
ï

Activator in bar form


Laurex
Zinc salts of lauric and related fatty acids
Chemtura
ï

Sp.gr. 1.18; tan flaked solid; mp about 107-118°C, but not definitely specified; good storage stability.

For CR, NBR, NR, SBR and their latices; recommended for tire carcass and tread compounds, extruded stocks, proof goods; activates thiazole accelerators and their derivatives; evens out and advances curing rates of off-grade rubbers deficient in natural fatty acids. Low blooming from cured and uncured compounds; much less blooming than many other fatty acid softeners; non-discoloring; melts, disperses readily.


Litharge 33 Sublimed
99.0% PbO red lead content 0.04%, Free lead content
Flow Polymers LLC
ï

Sp.gr. 9.5.

Used in rubber compounding similarly to litharge 28 where a smaller particle size is desired; a uniformly high purity material with a light tan color.





Litharge FlowSperse
Various percentages of litharge in different carriers
Flow Polymers LLC
ï

Paste and elastomeric dispersions.

Activator for NR and SRs.


Mag-Beads
Magnesium oxide beads
Rhein Chemie Corporation
ï

Sp.gr. 1.76; odorless, tan, free-flowing beads in high flash organic binder.

For CR, CSM, PE, NBR, polysulfides; activator, acid acceptor and vulcanizing agent; this dispersion in bead form resists hydration, handles easily and incorporates rapidly.


Magnesium Oxide

Brenntag Specialties, Inc.
ï

Magnesium oxide


Magnesium Oxide (MgO)

Rhein Chemie Corporation
ï

See also Mag-Paste, Mag-Beads, Rhenofit 2060, Rhenofit 2120, Rhenofit 2150, Rhenofit D/A, Rhenogran G-1, Rhenofit G-3, Rhenogran MgO-75, Scorchguard O


Magox Premium
Magnesium oxide
Premier Magnesia, LLC
ï

Odorless, high surface area, non-toxic white powder; available in bulk or 50 lb. poly-lined bags.

For CR, CSM, PE, NBR, polysulfides; vulcanizing agent; activator; acid acceptor; useful in adhesives and polyester sheet molding compounds.


Mastermix Activator (Caytur 4) 4961 Slab-70
70% Caytur 4 in an EPR binder
Hexpol Compounding- Specialty Products
ï

Sp. gr. 1.39

Dispersed form of Caytur 4 - Partial complex of zinc chloride with 2,2'-dibenzothiazyl disulfide (MBTS) for use in natural and synthetic rubbers.


Mastermix Bismate 4817 Slab-75
75% Bismate in an EPDM binder
Hexpol Compounding- Specialty Products
ï

Sp. gr. 1.53

Dispersed form of Bismate for use in natural and synthetic rubbers.


Mastermix Calcium Oxide 6119 Paste-80
80% Calcium Oxide in a DIDP binder
Harwick Standard Distribution Corporation
ï

Sp. gr. 2.27

Dispersed form of Calcium Oxide for use in natural and synthetic rubbers.


Mastermix Calcium Oxide 6119 Paste-80
80% Calcium Oxide in a DIDP binder
Hexpol Compounding- Specialty Products
ï

Sp. gr. 2.27

Dispersed form of Calcium Oxide for use in natural and synthetic rubbers.


Mastermix CalMag 5903 Slab-45
45% active 2:1 blend of calcium hydroxide and magnesium oxide in an FKM (genuine Viton) binder.
Harwick Standard Distribution Corporation
ï

Sp. gr. 1.94.

A convenient dispersed blend of activators for FKM compounds.





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Click companies below for more information about Activators

Suppliers listed
on this page

Kenrich Petrochemicals, Inc.

Chemtura

Flow Polymers LLC

Rhein Chemie Corporation

Brenntag Specialties, Inc.

Premier Magnesia, LLC

Hexpol Compounding- Specialty Products

Harwick Standard Distribution Corporation

     

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