Rubber Compounding Materials
Vulcanization Materials
Activators


347 items found
Search by for

Tradename ò
Composition
Supplier

Properties

Function & Compounding


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 U
Magnesium oxide
HB Chemical
ï

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

White powder or flakes.

Single, double, triple pressed.


Stearic Acid F-1000
Stearic acid
Harwick Standard Distribution Corporation
ï

Stearic acid, 70-75%; non-toxic white powder; color (Lovibond), 10.0Y/15R; titer, 58-62C; 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-1500
Stearic acid
Harwick Standard Distribution Corporation
ï

Non-toxic white powder; faint odor; titer, 58-62C; iodine number, 15 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 Standard Distribution Corporation
ï

Non-toxic off-white powder, faint odor; titre - minimum 52C, 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 Standard Distribution Corporation
ï

Non-toxic off-white powder, faint odor; titre - minimum 50C, 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 Standard Distribution Corporation
ï

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

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





Stearic Acid Quimic 1012
Fatty Acid
Dynasol
ï

Rubber grade sp. gr, 0.84, white flake

Rubber activator, plasticizer, softener


Stearic Acid Quimic 1070
Fatty acid
Dynasol
ï

Triple pressed, white flake

Activator, plasticizer, softener


Stearic Acid R Prill
stearic acid
HB Chemical
ï

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 Company
ï

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
ï

Dropping Point: 105-117C, 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
ï

Dropping point: 94-106C; 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.


Struktol WB 700A
Zinc oxide 91%; dispersing agent 9%
Struktol Company of America
ï

Specific gravity: 3.85; bulk density: 1,200; ash content: 91%; appearance: non-dusting powder

A non-dusting powder and is preferably used, where high amounts of dispersing agents are undesirable; shorter mixing time can be achieved compared to powered zinc oxide due to faster incorporation and the temperature of the compound is increased only slightly, which is an advantage in scorchy stocks; can be used in small dosages due to the uniform dispersion of the zinc oxide; formation of agglomerates, variations of the physical values and brittleness of the vulcanized rubber are reduced; physical properties of the vulcanizates are improved, especially after aging.


Struktol WB 900A
Magnesium oxide dispersion
Struktol Company of America
ï

Specific gravity: 2.09, magnesium oxide: 75+/-1, appearance: tan bead

Struktol metal oxide preparations may be used in rubber compounds where the dispersion of untreated metal oxides gives rise to problems; they reduce sticking to the rotor blades and mill rolls; WB 900A provides protection against humidity and carbon dioxide.; reduces the scorch risk of polychloroprene compounds.


Struktol ZEH
Zinc 2-ethylhexanoate
Struktol Company of America
ï

Specific gravity: 1.20, zinc content: 24% max, viscosity at 25C (mPa-s): 7000 max, appearance: high viscosity liquid

A rubber soluble zinc soap used as an activator for natural rubber; used instead of stearic acid and reduces stress relaxation and primary creep of NR-vulcanizates, especially in combination with soluble EV-systems; dosage: 1-3 phr.


Struktol ZEH-DL
Zinc 2-ethylhexanoate coated on silica powder
Struktol Company of America
ï

Specific gravity: 1.46, zinc content: 16.6% max, silica content: 33.3%, appearance: light powder

Rubber soluble activator for natural rubber compounds when used in place of stearic acid improves stress relaxation and primary creep of NR compounds; especially effective with soluble EU-systems; concentrations - 1.5 - 4.5 Phr.





Go to Page
Prev  9 10 11 12 13 14 15 16 17 18  Next
Show items at a time

Ø Main Menu
Ø Subscribe

Click companies below for more information about Activators

Suppliers listed
on this page

HB Chemical

The HallStar Co.

H.M. Royal, Inc.

R.E. Carroll Inc.

Harwick Standard Distribution Corporation

Dynasol

Sovereign Chemical Company

Struktol Company of America

     

This page, and all contents, are Copyright (c) 2018 Rubber World Magazine.
This site was created by Rubber World Magazine's Electronic Publishing Division, Akron, Ohio.