Tradename ò
Composition
Supplier

Properties

Function & Compounding

Stan-Mag MLW
Lightly calcined magnesium oxide
HB Chemicalï

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
RheTech Colors - A HEXPOL Companyï

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 P-170
65% MgO
RheTech Colors - A HEXPOL Companyï

Sp. Gr. 1.71

This is a very high activity Magnesium Oxide (MgO) encapsulated in a napthenic oil to produce a dustless powder form and protect the MgO from hydration. Product is normally used in Rubber Compounding.

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

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

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

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

Starmag CX-50
Magnesium oxide
HB Chemicalï

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 U
Magnesium oxide
HB Chemicalï

Surface area 145 m²/g; iodine absorption 160 mg/g; bulk density 0.43 g/ml; fine white powder

Highest activity for use in Neoprene G, W, TW types; acts as an acid acceptor in rubber and styrenic resins, CR contact adhesives; recommended for SMC thickener.

Stearic Acid
Stearic acid
H.M. Royal, Inc.ï

Sp.gr. 0.84; white powder, flakes, slabs; mild fat odor; non-toxic; mp, 126-133°F; iodine No, 0-15; mp and Iodine number both depend on purity (whether single, double or triple-pressed).

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

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.

Stearic Acid - Industrene
Stearic acid
R.E. Carroll Inc.ï

White powder or flakes.

Single, double, triple pressed.

Stearic Acid F-1500
Stearic acid
Harwick Standardï

Non-toxic white powder; faint odor; titer, 58-62°C; iodine number, 6 max.; acid number, 200-207; sap number 201-208.

Rubber activator; dispersing agent; lubricant; stabilizer; processing aid; latex activator.

Stearic Acid F-2000
Stearic acid
Harwick Standardï

Non-toxic off-white powder, faint odor; titre - minimum 52°C, iodine number 20 maximum; acid number - 195 minimum.

Rubber grade lower cost grade of stearic acid used to activate rubber and latex, as a dispersing agent, lubricant, stabilizer, and processing aid.

Stearic acid F-2500
Vegetable based stearic acid
Harwick Standardï

Non-toxic off-white powder, faint odor; titre - minimum 50°C, iodine number 10 maximum; acid number - 195 minimum.

Vegetable based grade of stearic acid used to activate rubber and latex, as a dispersing agent, lubricant, stabilizer, and processing aid

Stearic Acid F-300
Stearic acid
Harwick Standardï

Stearic acid; non-toxic white powder; color (Lovibond), 1.5Y/0.2R; titer, 58-61°C; iodine number 1 max.; acid number 200-206.

Rubber activator; dispersing agent; lubricant; stabilizer; processing aid; latex activator.

Stearic Acid Quimic 1012
Fatty Acid
Dynasolï

Rubber grade sp. gr, 0.84, white flake

Rubber activator, plasticizer, softener

Stearic Acid Quimic 1070
Fatty acid
Dynasolï

Triple pressed, white flake

Activator, plasticizer, softener

Stearic Acid R Prill
stearic acid
HB Chemicalï

Prilled rubber grade stearic acid.

Rubber activator, dispersing agent, lubricant, stabilizer, processing aid.

Stearic acid, SA 590
Vegetable based stearic acid, rubber grade
Sovereign Chemical Companyï

Flake, sp.gr. 0.84

see SA-590

Struktol Activator 73A
Mixture of zinc salts of aliphatic and aromatic carboxylic acids
Struktol Company of America, LLCï

Dropping Point: 105-117°C, Specific Gravity: 1.24, Zinc Content: 20% max, Appearance: antique white pastilles

Improvements include: prolonged reversion time, higher modulus, less heat build-up under dynamic load, and reduced compression set at elevated temperatures.

Struktol Activator 73LM
Mixture of zinc salts of aliphatic and aromatic carboxylic acids
Struktol Company of America, LLCï

Dropping point: 94-106°C; specific gravity: 1.15; zinc content: 12% max; appearance: antique white pastilles

Effective activator for sulfur vulcanization, used at 2 - 5 phr, designed for lower temperature mixes compared to Activator 73A.

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