Rubber Compounding Materials
Vulcanization Materials
Activators


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Grade 312
Zinc oxide
Perl Pigments, LLC
ï

ZnO-99.3%, Pb-.09%, Fe-.02%, CD-.03%, sulfur-.10%, insoluble-.08%.

Accelerator, activator, vulcanizer


CR-30
Zinc oxide
Harwick Standard Distribution Corporation
ï

High purity French process , white powder, sp.gr 5.6;large particle size,low surface area and treated with propionic acid

For natural and synthetic rubbers and latices as cure activator and/or vulcanizer; add directly to rubber; surface treated grade provides easier, faster incorporation.


HTR
Zinc oxide
Hydro Technologies (Canada)
ï

High surface area ZnO; BET 30 m2; sp.gr. 5.6; cream to off-white powder; zinc content >97%; Pb content <25 ppm

Slightly lower in surface area than HT Active; highly dispersible zinc oxide especially suited for semi-transparent and latex compounds; its higher activity benefits compounds with reduced zinc oxide content; when used at higher levels, improves compression set, crosslink density and reduces cure time.


CR 40
Zinc oxide
Western Reserve Chemical
ï

White powder; 99.9% passes through 325 mesh; sp. gr. 5.6; 99.9% zinc oxide; surface area 5 m2/g; surface treated with propionic acid.

Activator; surface treated to improve dispersion into rubber.


CR 41
Zinc oxide
Western Reserve Chemical
ï

White powder; 99.9% passes through 325 mesh; sp. gr. 5.6; 99.9% zinc oxide; surface area 6 m2/g.

Fine particle size, fast curing.


CR 4 USP
Zinc oxide
Western Reserve Chemical
ï

White powder; 99.9% passes through 325 mesh; sp. gr. 5.6; 99.9% zinc oxide; heavy metal content, carbonate content and alakalinity pass USP tests.

Activator; meets USP specifications.


HT-10
Zinc oxide
Hydro Technologies (Canada)
ï

General purpose ZnO; BET 8-11 m2; sp.gr. 5.6; cream to off-white powder

Medium surface area ZnO; NR and SR activator; semi-reinforcing and hiding pigment with higher activity; useful in adhesive formulations as a latex activator and supplemental gelling agent.


HT-3C
Zinc oxide
Hydro Technologies (Canada)
ï

General purpose ZnO; BET 4-8 m2; sp.gr. 5.6; cream to off-white powder

NR and SR activator; semi-reinforcing and hiding pigment.


CR-4
Zinc oxide
Harwick Standard Distribution Corporation
ï

High purity French process ,white powder, sp.gr. 5.6; medium particle size and medium surface area; available with surface treatment (CR-40)

For natural and synthetic rubbers and latices as cure activator and/or vulcanizer; add directly to rubber.


CR-42
Zinc oxide
Harwick Standard Distribution Corporation
ï

High purity French process, white powder,sp.gr 5.6; small particle size and high surface area available with surface treatment (CR-420)

For natural and synthetic rubbers and latices as cure activator where high reactivity and high purity are required.





HT-2C
Zinc oxide
Hydro Technologies (Canada)
ï

General purpose ZnO; BET 4-7 m2; sp.gr. 5.6; cream to off-white powder

NR and SR activator; semi-reinforcing and hiding pigment.


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.


Zinkoxyd Aktiv
Zinc oxide
Lanxess Corporation
ï

Sp. gr, 5.0; white to light yellowish powder; zinc oxide content min. 93; BET surface area approx. 45 m2/g; shipped: bag.

A very highly disperse activator; excellent for the manufacture of semi transparent rubber goods or goods with reduced zinc oxide content; when added at high levels imparts improved shape retention and provides highly elastic vulcanizates; used as an activator in latex compounds resulting low levels of zinc in latex compounds


Ken-Zinc
Zinc oxide - bar form
Flow Polymers LLC
ï

Activator in bar form


Mixland + Zinc oxide Masterbatch
Zinc oxide -80 % active in a proprietary Mixland + binder
Harwick Standard Distribution Corporation
ï

Pellets- 140 micron filtered

Dispersion for easy incorporation;see also CR Zinc oxides


ZnO, Sovsperse ZnO-85
Zinc oxide 85% active dispersed in an elastomeric binder
Sovereign Chemical Company
ï

Sp.gr. 3.10; small granules

Activator in sulfur based cure systems and a vulcanizer for halobutyl rubbers


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.


Zic-Stick '85'
Zinc oxide dispersion
Rhein Chemie Corporation
ï

Sp.gr. 3.66; zinc oxide content approx 90%; very fine dispersion of highly active zinc oxide

Activator for NR and SRs; vulcanizer for polychloroprene and other halogenated elastomers; superior activity coupled with rapid complete incorporation enables 3 parts of Zic Stick 85 to replace 5 parts of zinc oxide powder in most applications.


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.


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.





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Click companies below for more information about Activators

Suppliers listed
on this page

Perl Pigments, LLC

Harwick Standard Distribution Corporation

Hydro Technologies (Canada)

Western Reserve Chemical

American Chemet

Lanxess Corporation

Flow Polymers LLC

Sovereign Chemical Company

Struktol Company of America

Rhein Chemie Corporation

Akrochem Corp.

     

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