Rubber Compounding Materials
Vulcanization Materials
Activators
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Tradename
ò
Composition
Supplier
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Properties
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Function
& Compounding
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Scorchguard "O"
Magnesium oxide dispersion
Rhein Chemie Corporationï |
Sp.gr. 1.90; buff-gray bars; very fine dispersion, protected from loss of activity
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Used in chloroprene and chlorosulfanated polyethylene; gives superior protection against scorch, at process temperatures while giving excellent acceleration and vulcanization rates at cure temperatures; further aids processing by rapid incorporationand elimination of sticking to the mixer; retarder for halobutyls
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SR 203 DLC-A
72% liquid tetrahydrofurfuryl methacrylate on silica powder
Natrochemï |
Off-white dustless powder; shipped bag.
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Vulcanizing coagent for peroxide cure, plasticizer during mixing; hardener.
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SR 206 DLC-A
Ethylene dimethacrylate 72% liquid on silica powder
Natrochemï |
Sp.gr. 1.05, off-white dustless powder polymerizable; shipped bag.
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For peroxide cure of BR, CR, EPDM, EPM, IR, NBR, acrylics, urethanes, plasticizers during mixing; hardener.
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SR709
Zinc mono-methacrylate
Cray Valley, a brand of Totalï |
White crystalline powder; specific gravity @ 25°Cis 1.88.
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An ultra-efficient sulfur activator which develops superior modulus/cross density with excellent scorch properties and reversion proptection.
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Stan- Mag 112
Magnesium oxide
Harwick Standard Distribution Corporationï |
Sp.gr 3.22;surface area- 35 m2/g;powder
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Low activity,low surafce area magnesium oxide
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Stan-Mag 1326 HR
A proprietary blend of zinc and magnesium oxides.
Harwick Standard Distribution Corporationï |
Sp.gr. 3.17; powder
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Component blend vulcanization system for CR polymers
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Stan-Mag AG
Magnesium oxide
Harwick Standard Distribution Corporationï |
Sp.gr. 3.22; surface area- 140 m2g;powder
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A high activity, high surface area magnesium oxide for stabilizing chlorinated polymers- CR,CSM,and CPE
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Stan-Mag AG
Magnesium oxide
HEXPOL Compoundingï |
Sp.gr. 3.22; surface area- 140 m2g;powder
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A high activity, high surface area magnesium oxide for stabilizing chlorinated polymers- CR,CSM,and CPE
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Stan-Mag Bar
65% Magnesium Oxide in napthenic oil
HEXPOL Compoundingï |
Sp. gr. 1.80
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A high activity, high surface area magnesium oxide for use as an acid acceptor in chlorinated polymers CR,CSM and CPE
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Stan-Mag Bar
65% MgO in a proprietary binder
Harwick Standard Distribution Corporationï |
Sp.gr. 1.80;bar form
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Medium-high activity grade MgO used as an activator, acid acceptor and scorch protector for halogenated polymers such as CR and CSM
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Stan-Mag DS2
Magnesium oxide
Harwick Standard Distribution Corporationï |
Sp.gr. 3.22;surface area- 165 m2g; powder
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A high activity ,high surface area magnesium oxide for use as an acid acceptor in chlorinated polymers CR,CSM and CPE
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Stan-Mag DS2
Magnesium oxide
HEXPOL Compoundingï |
Sp.gr. 3.22;surface area- 165 m2g; powder
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A high activity ,high surface area magnesium oxide for use as an acid acceptor in chlorinated polymers CR,CSM and CPE
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Stan-Mag DS-2 Bar
57% Magnesium Oxide
HEXPOL Compoundingï |
Sp. gr. 1.80
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A high activity, very high surface area magnesium oxide for use as an acid acceptor in chlorinated polymers CR,CSM and CPE
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Stan-Mag Mini Beads
Medium light calcined, high activity magnesium oxide in a paraffinic oil binder system
Harwick Standard Distribution Corporationï |
Sp.gr. 1.80; small bead form; 65% activity.
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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.
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Stan-Mag Mini Beads
Medium light calcined, high activity magnesium oxide in a paraffinic oil binder system
HEXPOL Compoundingï |
Sp.gr. 1.80; small bead form; 65% activity.
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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.
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Stan-Mag MLW
Lightly calcined magnesium oxide
HEXPOL Compoundingï |
Sp.gr. 3.22; surface area- 115m2/g; 98% passes 325 mesh
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Medium-high activity and surface area grade used as an activator, acid acceptor and scorch protector for halogenated polymers CR, CSM and CPE
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Stan-Mag MLW
Lightly calcined magnesium oxide
Harwick Standard Distribution Corporationï |
Sp.gr. 3.22; surface area- 115m2/g; 98% passes 325 mesh
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Medium-high activity and surface area grade used as an activator, acid acceptor and scorch protector for halogenated polymers CR, CSM and CPE
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Stan-Mag Products
Magnesium oxide
Harwick Standard Distribution Corporationï |
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A variety of of magnesium oxide based products in powder, bead, or bar form
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Starmag 150
Magnesium oxide
HB Chemicalï |
Surface area 135 m2/g; iodine absorption 155 mg./g; bulk density 0.35 g/ml; fine white powder
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High activity for use with Neoprene and other chlorinated polymers; acts as an acid acceptor and high temperature aging improver.
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Starmag CX-150
Magnesium oxide
HB Chemicalï |
Surface area 135 m2/g; iodine absorption 145 mg/g; bulk density 0.35 g/ml; fine white powder
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Excellent processing and dispersion; recommended for fluoroelastomer compounding; high activity; known for superior dispersability.
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