Rubber Compounding Materials
Vulcanization Materials
Activators
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Tradename
Composition
Supplier
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Properties
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Function
& Compounding
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Thanecure T9 (TDI Dimer)
R.D. Abbott Company, Inc. (RDAbbott)ï |
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Thanecure T9 is dimerized TDI and is used as a vulcanization agent for isocyanate cured millable urethanes. It is also used as an adhesion promoter for rubber to textile bonding.
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Akrochem PEG 3350
Polyethylene glycol
Akrochem Corp.ï |
Powder/Granules; sp.gr. 1.15; melt point 130°F; soluble in water
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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.
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Akrochem 9930 Zinc Oxide Transparent
Precipitated basic zinc carbonate
Akrochem Corp.ï |
White powder; sp. gr. 3.5; 99% through 200 mesh.
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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.
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Akrochem Zinc Oxide 35
Precipitated zinc oxide
Akrochem Corp.ï |
White to light yellow powder; sp.gr. 5.6; surface are 35 m2/gram.
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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.
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Akrochem Stearic Acid-TP
Mixture of stearic and palmitic acids
Akrochem Corp.ï |
White flakes; sp.gr. 0.85; iodine <1; Gardner color <1.
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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.
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Akro-Zinc Bar 85
Zinc oxide dispersion
Akrochem Corp.ï |
Sp.gr. 3.60, zinc oxide 85%; 6 lb. bar; 54 lb carton.
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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.
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Akroform PbOMC-90/EPR/P
Calcined litharge in EPR
Akrochem Corp.ï |
90% active MB in pellets form.
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NR and SR cure activator/acid acceptor in EPR.
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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.
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Vulcanizer, activator, acid acceptor; used in polychloroprene, Hypalon; recommended at 4.0 parts/100 RHC.
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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.
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Vulcanizer, activator, acid acceptor; used in polychloroprene, Hypalon; recommended at 4.0 parts/100 RHC.
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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.
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Dispersing agent and accelerator activator in rubber compounds.
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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.
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NR, SR activator reinforcer, good inorganic color; add directly to rubber, easy dispersing.
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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.
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Blow promoter for nitrogen blowing agents; also a cure activator for thiazole accelerators in CR, IIR, NBR, NR and SBR.
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Akroform Pb3O4-90/EPR/P
Red Lead in EPR
Akrochem Corp.ï |
90% active.
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Easy and safer handling; used primarily as ECO acid acceptor.
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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.
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For halogenated elastomers; vulcanizing and curing; activator, acid acceptor.
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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.
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For halogenated elastomers; vulcanizing and curing, activator, acid acceptor; high activity type MgO.
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Akrochem Untreated Zinc Oxides
Zinc oxide
Akrochem Corp.ï |
Sp.gr. 5.6; primary zinc oxide; odorless, non-toxic, fine white powder.
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NR, SR, latex activator, reinforcer, good inorganic color; add directly to rubber, as water dispersion to latex.
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Akrochem Oleic Acid
Primarily cis-9-octadecenoic acid (oleic)
Akrochem Corp.ï |
Oyster white liquid; sp.gr. 0.90
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Utilized as an activator, plasticizer in NR and SR where color or clarity are not critical; typical loading 2-10 phr.
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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.
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A 60% aqueous dispersion of a conventional activator for accelerator systems used in natural and synthetic latices.
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Zinox 350
Zinc oxide
American Chemetï |
Sp.gr. 4.9 g/cc; high surface area ZnO > 21m2/gm; precipitated; nodular; ± 99.5% -325 mesh; cream-off white.
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Activator for rubber; neoprene, butyl, nitrile, EPDM, SBR, latex, etc.
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Innovox 95
Calcium oxide, surface treated
Birch Chemicals Limitedï |
High purity calcium oxide, with consistent low particle size range and excellent dispersion, specifically packaged for rubber compounding.
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An efficient desiccant/moisture absorber for all commonly used elastomers giving protection from porosity or blistering of rubber products which are produced in low or high-temperature cure systems.
Available in pre-weighed sachets for direct mixer application.
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