Rubber Compounding Materials
Vulcanization Materials
Activators


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Akroform PbOMC-90/EPR/P
Calcined litharge in EPR
Akrochem Corp.
ï

90% active MB in pellets form.

NR and SR cure activator/acid acceptor in EPR.


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 Stearic Acid-TP
Mixture of stearic and palmitic acids
Akrochem Corp.
ï

White flakes; sp.gr. 0.85; iodine <1; Gardner color <1.

High purity triple pressed (TP) stearic acid used in rubber compounding as an activator; excellent color, low iodine; plasticizer, process aid and internal/external lubricant.


Akro-Zinc Bar 85
Zinc oxide dispersion
Akrochem Corp.
ï

Sp.gr. 3.60, zinc oxide 85%; 6 lb. bar; 54 lb carton.

Use in place of zinc oxide powder on a part for part basis; use for applications where a pre-wetted product is desirable; G type Neoprenes where addition of zinc oxide late in mix is indicated; low hardness compounds where zinc oxide dispersion is amust.


Akro-Mag Green Label Bar
Magnesium oxide dispersion
Akrochem Corp.
ï

Sp.gr. 1.56; very fine dispersion; protected from loss of activity; cream color to dark tan 3lb. poly wrapped bars; easy dispersion; good storage stability; slightly less active magnesium oxide than Akro-Mag yellow bar.

Vulcanizer, activator, acid acceptor; used in polychloroprene, Hypalon; recommended at 4.0 parts/100 RHC.


Akro-Mag Blue Label Bar
Magnesium oxide dispersion
Akrochem Corp.
ï

Sp.gr. 1.51; very fine dispersion; protected from loss of activity; cream color to dark tan. 3 lb bars, easy dispersing; good storage stability; all magnesium oxide is Elastomag 170 grade; highest activity type; superior protection.

Vulcanizer, activator, acid acceptor; used in polychloroprene, Hypalon; recommended at 4.0 parts/100 RHC.


Akrochem Stearic Acid-Rubber Grade (RG)
Stearic acid
Akrochem Corp.
ï

Titer 52-64°C; iodine value 10 max.; acid no. 193-213; saponification no. 193-214; Gardner color 10 max.

Dispersing agent and accelerator activator in rubber compounds.


Akrochem Untreated Zinc Oxides
Zinc oxide
Akrochem Corp.
ï

Sp.gr. 5.6; primary zinc oxide; odorless, non-toxic, fine white powder.

NR, SR, latex activator, reinforcer, good inorganic color; add directly to rubber, as water dispersion to latex.


Akrochem Treated Zinc Oxides
Zinc oxide surface treated with proprionic acid
Akrochem Corp.
ï

Sp.gr. 5.6; primary zinc oxide; odorless, non-toxic, fine white powder.

NR, SR activator reinforcer, good inorganic color; add directly to rubber, easy dispersing.





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.


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.


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

90% active.

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


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.


Elastomag 170 Powder
Magnesium oxide
Akrochem Corp.
ï

White powder and micro pellets. sp. gr, 3.2; sa avg 170 m2/gr,; avg ps 2.2μ; shipped: 50 lb multiwall bags and PE pouches in cartons; protect from air and moisture.

For halogenated elastomers; vulcanizing and curing, activator, acid acceptor; high activity type MgO.


Elastomag 100
Magnesium oxide
Akrochem Corp.
ï

White powders. sp. gr, 3.2, surface area 100m2/gm, avg, sp gr, 2.5; shipped in 50# multiwall bags and PE pouches; protect from air and moisture.

For halogenated elastomers; vulcanizing and curing; activator, acid acceptor.


Bostex 422
Aqueous dispersion of zinc oxide
Akron Dispersions, Inc.
ï

Off white liquid; total solids 59.5-63.5%; pH - 9.0-11.0.

A 60% aqueous dispersion of a conventional activator for accelerator systems used in natural and synthetic latices.


TEA DLD
Triethanolamine (99%) on silica binder.
Akron Dispersions, Inc.
ï

Sp.gr. 1.414; light gray to tan, dustless, free-flowing powder.

Activator for NR and SBR; neutralizes acidity of clay.


TATM DLD
Triallyl trimellitate on silica binder.
Akron Dispersions, Inc.
ï

Sp.gr. 1.415; off white, dustless, free-flowing powder.

Activator for peroxide vulcanization.


Zinox 350
Zinc oxide
American Chemet
ï

Sp.gr. 4.9 g/cc; high surface area ZnO > 21m2/gm; precipitated; nodular; ± 99.5% -325 mesh; cream-off white.

Activator for rubber; neoprene, butyl, nitrile, EPDM, SBR, latex, etc.





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