Rubber Compounding Materials
Vulcanization Materials
Activators


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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.


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


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.


Grade 318 American Process
Zinc oxide
Perl Pigments, LLC
ï

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

Accelerator, activator, vulcanizer


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.


Daewoon
Zinc oxide
Intertex World Resources, Inc.
ï

Low purity, low cost transactivated zinc oxide.

General purpose rubber applications.


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.


CR-3
Zinc oxide
Harwick Standard Distribution Corporation
ï

High purity French process , white powder, sp.gr 5.6;large particle size,low surface area ; also available with surface treatment CR-30

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


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.


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.





HT-Active
Zinc oxide
Hydro Technologies (Canada)
ï

High surface area ZnO; BET 40 m2; sp.gr. 5.6; cream to off-white powder; zinc content > 97%; Pb content <25 ppm

A 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.


Grade 312
Zinc oxide
Perl Pigments, LLC
ï

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

Accelerator, activator, vulcanizer


Grade 185
Zinc oxide
Perl Pigments, LLC
ï

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

Accelerator, activator, vulcanizer


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.


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.


SR709
Zinc mono-methacrylate
Cray Valley, a brand of Total
ï

White crystalline powder; specific gravity @ 25°Cis 1.88.

An ultra-efficient sulfur activator which develops superior modulus/cross density with excellent scorch properties and reversion proptection.


Thanecure ZM
Zinc chloride dibenzothiazyl disulfide complex
TSE Industries Inc.
ï

Sp. gr. 1.80; yellowish powder

Activator for sulfur and peroxide cross-linkable polyurethane rubber.


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.


Struktol ZEH
Zinc 2-ethylhexanoate
Struktol Company of America
ï

Specific gravity: 1.20, zinc content: 24% max, viscosity at 25°C (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.


Stearic acid, SA 590
Vegetable based stearic acid, rubber grade
Sovereign Chemical Company
ï

Flake, sp.gr. 0.84

see SA-590





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Click companies below for more information about Activators

Suppliers listed
on this page

Western Reserve Chemical

Lanxess Corporation

Perl Pigments, LLC

Harwick Standard Distribution Corporation

Intertex World Resources, Inc.

Hydro Technologies (Canada)

Akrochem Corp.

Cray Valley, a brand of Total

TSE Industries Inc.

Struktol Company of America

Sovereign Chemical Company

     

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