Rubber Compounding Materials
Vulcanization Materials
Activators


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Stan-Mag AG
Magnesium oxide
Harwick Standard Distribution Corporation
ï

Sp.gr. 3.22; surface area- 140 m2g;powder

A high activity, high surface area magnesium oxide for stabilizing chlorinated polymers- CR,CSM,and CPE


PolyBound 463 Mag Oxide-70
70% magnesium oxide encapsulated in proprietary binder
Harwick Standard Distribution Corporation
ï

Sp. gr. 1.83; crumb

Polymer bound powder form of MgO easy to handle; dust free form incorporates rapidly during mixing.


Stan-Mag Bar
65% MgO in a proprietary binder
Harwick Standard Distribution Corporation
ï

Sp.gr. 1.80;bar form

Medium-high activity grade MgO used as an activator, acid acceptor and scorch protector for halogenated polymers such as CR and CSM


Natro-Cel TATM-A
72% Triallyl Trimelliate on silica powder
Harwick Standard Distribution Corporation
ï

Sp.gr. 1.15;Dustless powder

Excellent activator for cured EPDM and CPE.


Mixland + Zinc oxide Masterbatch
Zinc oxide -80 % active in a proprietary Mixland + binder
Harwick Standard Distribution Corporation
ï

Pellets- 140 micron filtered

Dispersion for easy incorporation;see also CR Zinc oxides


Natro-Cel 35-A
72% trimethyl propane trimethacrylate on silica powder
Harwick Standard Distribution Corporation
ï

Sp.gr. 1.23; dustless powder

Co-agent for peroxide cured elastomers


Calcium Oxide HP
High purity calcium oxide
The HallStar Co.
ï

A high purity, very dry, conveniently packaged calcium oxide for rubber compounding.

Used in fluoroelastomer compounding; also used as a desiccant in compounding for continuous cures.


Kadox 911C
French process zinc oxide, surface treated
The HallStar Co.
ï

99.1% ZNO; 99.98% through 325 mesh; 0.12 average micron particle size.

Surface treatment promotes rapid incorporation and dispersion into rubber.


Kadox 911
French process zinc oxide
The HallStar Co.
ï

99.6% ZNO; 99.99% through 325 mesh; 0.12 average micron particle size.

Fine particle size and high purity zinc oxide.


Kadox 720-C
French process zinc oxide, surface coated
The HallStar Co.
ï

99.2% ZNO; 99.99% through 325 mesh; 0.21 average micron particle size.

Surface treatment lends better processing and dispersion properties to the standard zinc oxide.





Kadox 720
French process zinc oxide
The HallStar Co.
ï

99.6% ZNO, 99.99% through 325 mesh; 0.21 average micron particle size

Activator with moderate reinforcement and good dispersion.


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.

Recommended for mill and internal mixing; offers better dispersion and safety.


Stearic Acid
Rubber grade stearic acid
The HallStar Co.
ï

Sp.gr. 0.84' white flakes, mild fat odor; non-toxic; mp, 70°C; idine no, 9.5, titre 52°C, acid number 197-209.

For NR, SRs (except IIR), latexes; activator; plasticizer; softener; gives acid-type activation; improves processing; aids filler and pigment dispersion; add directly.


Suprmix Triethanolamine 85
Triethanolamine - silicate blend
The HallStar Co.
ï

Sp.gr. 1.277; light buff, non-dusting powder; pressure sensitive; shipped: fiber drums.

NR, SBR, latex activator; dispersing agent; use in Hi-Sil, Silene and Zeolite loaded stocks; use 3-6% on filler content.


Calcium Hydroxide HP
High purity calcium hydroxide
The HallStar Co.
ï

Sp.gr. 2.08; Odorless, dry powder; conveniently packaged.

For NR, SRs, fluoroelastomers, latexes; speeds up cure; prevents product porosity; add directly.


Kenmix
Maglite D/P 50/50
Flow Polymers LLC
ï

Sp.gr. 1.54

Activator in paste form in Kenflex P.


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.


Kenmix
Red lead/P 9/1
Flow Polymers LLC
ï

Sp.gr. 4.93

Activator in paste form in Kenflex P.


Kenmix
Maglite D/N 50/50
Flow Polymers LLC
ï

Sp.gr. 1.54

Activator in paste form in Kenflex N.


Kenmix
Red lead/N 5/1
Flow Polymers LLC
ï

Sp.gr. 3.82

Activator in paste form in Kenflex N.





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Harwick Standard Distribution Corporation

The HallStar Co.

Flow Polymers LLC

     

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