Tradename
Composition ò
Supplier

Properties

Function & Compounding

Struktol Activator 73A
Mixture of zinc salts of aliphatic and aromatic carboxylic acids
Struktol Company of Americaï

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.

Akrochem E-9347 Urea OT
Oil treated urea
Akrochem Corp.ï

Sp.gr. 1.30; free flowing white powder, mp 129-134°C; slight water solubility.

Blow promoter for nitrogen blowing agents; also a cure activator for thiazole accelerators in CR, IIR, NBR, NR and SBR.

Polyethylene Glycol EF/Enviropeg Line
Polyethylene glycol
The Dow Chemical Companyï

Line includes Solids - Sp gr 1.22; white powder or flake PEG-E-3350, E-4000, E-6000,E-8000 and E-20,000; Melt pt.55-61°C Semi-solids - Sp.gr. 1.13; white E-1450 and E-2000; melt point 44-48° C Liquids - Sp.gr. 1.13 E-200 and E-400

Activator used in conjunction with high surface area silicas and internal lubricant in elastomeric compounds.

Akrochem PEG 3350
Polyethylene glycol
Akrochem Corp.ï

Powder/Granules; sp.gr. 1.15; melt point 130°F; soluble in water

As an activator for silica/mineral filled compounds; aso as a process aid/lubricant; typical dosages 1.5 to 3.0 phr; higher levels are used to add polarity to mircrowave-cured EPDMs.

Polyethylene Glycol EF/Enviropeg Line
Polyethylene glycol
Harwick Standard Distribution Corporationï

Line includes Solids - Sp gr 1.22; white powder or flake PEG-E-3350, E-4000, E-6000,E-8000 and E-20,000; Melt pt.55-61°C Semi-solids - Sp.gr. 1.13; white E-1450 and E-2000; melt point 44-48° C Liquids - Sp.gr. 1.13 E-200 and E-400

Activator used in conjunction with high surface area silicas and internal lubricant in elastomeric compounds.

Akrochem 9930 Zinc Oxide Transparent
Precipitated basic zinc carbonate
Akrochem Corp.ï

White powder; sp. gr. 3.5; 99% through 200 mesh.

Accelerator, activator of extremely fine particle size; particularly useful for transparent and translucent rubber articles (NR and SR); acid acceptor in CR adhesive where transparency is required; very good dispersion characteristics.

Akrochem Zinc Oxide 35
Precipitated zinc oxide
Akrochem Corp.ï

White to light yellow powder; sp.gr. 5.6; surface are 35 m²/gram.

Effective activator of extremely fine particle size; use in NR, SR and latex applications; high activity permits 20-30% reduction in loading compared to regular zinc oxide; useful in transparent and translucent rubber articles; crosslinking agent for CR and XNBR.

Akrochem Oleic Acid
Primarily cis-9-octadecenoic acid (oleic)
Akrochem Corp.ï

Oyster white liquid; sp.gr. 0.90

Utilized as an activator, plasticizer in NR and SR where color or clarity are not critical; typical loading 2-10 phr.

Poly-Dispersion ERD-90
Red Lead in an EPR binder
Rhein Chemie Corporationï

Sp.gr. 4.57; Red Lead, 90%; very fine dispersion in elastomeric slab form, scored, dusted and separated with PE.

To produce low water absorption polychloroprene compounds and EPDM wire; provides processing and handling safety, excellent dispersion, uniform cures curing activator for CR, IIR, CSM.

Akroform Pb₃O₄-90/EPR/P
Red Lead in EPR
Akrochem Corp.ï

90% active.

Easy and safer handling; used primarily as ECO acid acceptor.

Kenmix
Red lead/N 5/1
Flow Polymers LLCï

Sp.gr. 3.82

Activator in paste form in Kenflex N.

Kenmix
Red lead/N 9/1
Flow Polymers LLCï

Sp.gr. 4.93

Activator in paste form in Kenflex N.

Kenmix
Red lead/P 5/1
Flow Polymers LLCï

Sp.gr. 3.82

Activator in paste form in Kenflex P.

Kenmix
Red lead/P 9/1
Flow Polymers LLCï

Sp.gr. 4.93

Activator in paste form in Kenflex P.

Kenmix
Red lead/Sundex 790 9/1
Flow Polymers LLCï

Sp.gr. 4.81

Activator in paste form in Sundex 790.

Kenmix
Red lead/Sunpar 2280 9/1
Flow Polymers LLCï

Sp.gr. 4.7

Activator in paste form in Sunpar 2280.

Drimix
Ridacto 75 Powder
Flow Polymers LLCï

Sp.gr. 1.22

Free flowing powder form of Ridacto, an accelerator activator

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.

SA-590
Rubber grade, vegetable based stearic acid
Sovereign Chemical Companyï

Flake, sp. gr. 0.84

Vegetable based grade of stearic acid designed for use in rubber compounding as an activator; also used in esters for various lubricant applications as metal working and textile lubricants, and in the production soaps, emulsifiers, and metallic stearates.

Drimix
Silacto 75 Powder
Flow Polymers LLCï

Sp.gr. 1.25

Free flowing powder form of Silacto, an activator for silica containing stocks.

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