Rubber Compounding Materials
Vulcanization Materials
Activators


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Starmag CX-50
Magnesium oxide
HB Chemical
ï

Surface area 42 m2/g; iodine absorption 50 mg/g; bulk density 0.51 g/ml, fine white powder; recommended for Viton, Fluorel; med. activity because of its superior dispersion.

Excellent processing and superior dispensability.


Starmag CX-150
Magnesium oxide
HB Chemical
ï

Surface area 135 m2/g; iodine absorption 145 mg/g; bulk density 0.35 g/ml; fine white powder

Excellent processing and dispersion; recommended for fluoroelastomer compounding; high activity; known for superior dispersability.


Starmag 150
Magnesium oxide
HB Chemical
ï

Surface area 135 m2/g; iodine absorption 155 mg./g; bulk density 0.35 g/ml; fine white powder

High activity for use with Neoprene and other chlorinated polymers; acts as an acid acceptor and high temperature aging improver.


Stan-Mag Products
Magnesium oxide
Harwick Standard
ï

A variety of of magnesium oxide based products in powder, bead, or bar form


Stan-Mag MLW
Lightly calcined magnesium oxide
HEXPOL Compounding
ï

Sp.gr. 3.22; surface area- 115m2/g; 98% passes 325 mesh

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


Stan-Mag MLW
Lightly calcined magnesium oxide
Harwick Standard
ï

Sp.gr. 3.22; surface area- 115m2/g; 98% passes 325 mesh

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


Stan-Mag Mini Beads
Medium light calcined, high activity magnesium oxide in a paraffinic oil binder system
Harwick Standard
ï

Sp.gr. 1.80; small bead form; 65% activity.

Pre-wet form which is non-dusty, free flowing and protected from the deleterious affects of humidity; use for rapid dispersion in halogenated polymers as an acid acceptor, scorch protector and curative.


Stan-Mag Mini Beads
Medium light calcined, high activity magnesium oxide in a paraffinic oil binder system
HEXPOL Compounding
ï

Sp.gr. 1.80; small bead form; 65% activity.

Pre-wet form which is non-dusty, free flowing and protected from the deleterious affects of humidity; use for rapid dispersion in halogenated polymers as an acid acceptor, scorch protector and curative.


Stan-Mag MBZ
Co-dispersion of Magnesia and Zinc
Harwick Standard
ï

Free flowing powder, 2.0 sp. gr., 65% active

Proprietary blend of zinc and magnesium oxides for polychloroprene vulcanization. Designed for use at 3 - 5 phr in polychloroprene to replace all magnesium and zinc oxide in a formulation.


Stan-Mag DS-2 Bar
57% Magnesium Oxide
HEXPOL Compounding
ï

Sp. gr. 1.80

A high activity, very high surface area magnesium oxide for use as an acid acceptor in chlorinated polymers CR,CSM and CPE





Stan-Mag DS2
Magnesium oxide
HEXPOL Compounding
ï

Sp.gr. 3.22;surface area- 165 m2g; powder

A high activity ,high surface area magnesium oxide for use as an acid acceptor in chlorinated polymers CR,CSM and CPE


Stan-Mag DS2
Magnesium oxide
Harwick Standard
ï

Sp.gr. 3.22;surface area- 165 m2g; powder

A high activity ,high surface area magnesium oxide for use as an acid acceptor in chlorinated polymers CR,CSM and CPE


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


Stan-Mag Bar
65% Magnesium Oxide in napthenic oil
HEXPOL Compounding
ï

Sp. gr. 1.80

A high activity, high surface area magnesium oxide for use as an acid acceptor in chlorinated polymers CR,CSM and CPE


Stan-Mag AG
Magnesium oxide
HEXPOL Compounding
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


Stan-Mag AG
Magnesium oxide
Harwick Standard
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


Stan-Mag 1326 HR
A proprietary blend of zinc and magnesium oxides.
Harwick Standard
ï

Sp.gr. 3.17; powder

Component blend vulcanization system for CR polymers


Stan-Mag 112
Magnesium oxide
Harwick Standard
ï

Sp.gr 3.22;surface area- 35 m2/g;powder

Low activity,low surafce area magnesium oxide


SR709
Zinc mono-methacrylate
Cray Valley, a brand of Total
ï

White crystalline powder; specific gravity @ 25°Cis 1.88.

An ultra-efficient sulfur activator which develops superior modulus/cross density with excellent scorch properties and reversion proptection.


SR 206 DLC-A
Ethylene dimethacrylate 72% liquid on silica powder
Natrochem
ï

Sp.gr. 1.05, off-white dustless powder polymerizable; shipped bag.

For peroxide cure of BR, CR, EPDM, EPM, IR, NBR, acrylics, urethanes, plasticizers during mixing; hardener.





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HB Chemical

Harwick Standard

HEXPOL Compounding

Cray Valley, a brand of Total

Natrochem

     

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