Rubber Compounding Materials
Vulcanization Materials
Activators


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Tradename
Composition ò
Supplier

Properties

Function & Compounding


Rhenofit 1987
Combination of activating substances based on urea
Rhein Chemie Corporation
ï

Sp.gr. approx. 1.5; white powder.

Curing activator and promoter for reinforcing fillers


Rhenofit 2642
Combination of activating substances based on urea bound to high activity silica
Rhein Chemie Corporation
ï

Sp.gr.. approx. 1.50; white powder, slightly hygroscopic

Accelerator activator for the vulcanization of CO and ECO.


Rhenofit 1600
Combination of urea derivatives and dispersing agent
Rhein Chemie Corporation
ï

Sp.gr. approx. 1.25; light-colored aqueous paste

Blow promoter and deodorizer as well as vulcanization activator with built-in scorch retarder.


Kenmix
Diak #1/N 2/1
Flow Polymers LLC
ï

Sp.gr. 1.15

Activator in paste form in Kenflex N.


Kenmix
Diak #1/P 2/1
Flow Polymers LLC
ï

Sp.gr. 1.15

Activator in paste form in Kenflex P.


D-B-A Accelerator
Dibenzylamine-monobenzylamine blend
Chemtura
ï

Sp.gr. 1.01; pale-yellow free flowing liquid; good storage stability.

For NR, SBR rubbers and latices, NR reclaim; affects air cures ranging from 24 hrs. at room temp to 20 min at 100°C; retarded by clay and other acidic materials; action with xanthates or carbon disulfide enhanced by thiazoles and thiurams; non-discoloring, non-staining; vulcanization requires zinc oxide and sulfur; fatty acids not necessary and can retard cure; can apply carbon disulfide by painting or dipping compounds thus eliminating danger of precure; for processing and applications see C-P-B.


Zinc Oxide FlowSperse
Different percentages of zinc oxide on various carriers.
Flow Polymers LLC
ï

Elastomeric dispersion.

Activator for natural and synthetic rubber.


Kenmix
Dyphos/P 70/30
Flow Polymers LLC
ï

Sp.gr. 2.34

Activator in paste form in Kenflex P.


Kenmix
Dythal/P 80/20
Flow Polymers LLC
ï

Sp.gr. 2.7

Activator in paste form in Kenflex P.


Plastomag 170
Elastomag 170 (magnesium oxide) and naphthenic oil
H.M. Royal, Inc.
ï

Sp.gr. 2.45; bead form; oil agglomerated ultrafine particles.

For halogenated elastomers; vulcanizing and curing agent; activator; acid acceptor; pelleted product improves handling conditions.





SR 206 DLC-A
Ethylene dimethacrylate 72% liquid on silica powder
Natrochem
ï

Sp.gr. 1.05, off-white dustless powder polymerizable; shipped bag.

For peroxide cure of BR, CR, EPDM, EPM, IR, NBR, acrylics, urethanes, plasticizers during mixing; hardener.


Stearic Acid Quimic 1070
Fatty acid
Dynasol
ï

Triple pressed, white flake

Activator, plasticizer, softener


Stearic Acid Quimic 1012
Fatty Acid
Dynasol
ï

Rubber grade sp. gr, 0.84, white flake

Rubber activator, plasticizer, softener


Actafoam R3
Fatty acid salts dispersion
Chemtura
ï

Sp.gr. 1.05; amber liquid; lead free; for use in FDA approved applications.

Activator-stabilizer for foamable thermoplastic compounds; replacement for a portion of the normal zinc oxide level in sponge rubber compounding.


Poly-Dispersion T(HRL)D-90
Fine particle size litharge in an EPDM binder
Rhein Chemie Corporation
ï

Sp.gr. 4.75; litharge 90%; very fine dispersion in elastomeric slab form, scored, dusted, and separated with PE.

chlorosulfonated polyethylene stabilizer, add in first step in mixing cycle; provides processing and handling safety, excellent dispersion, uniform cures.


Unipaste (P II)
Finely ground urea with fatty acid compounds.
DJ Semichem
ï

Fine white powde; avoid moisture conditions.

Used as accelerator/activator for nitrogen releasing CBA; used as companion to DNPT blown sponges to reduce odors in sponges.


Struktol Zimag 29/43A
Free-flowing granulate consisting of: 29% zinc oxide, 43% magnesium oxide and 28% wetting and dispersing agent.
Struktol Company of America, LLC
ï

Specific gravity: 2.11, bulk density: 800 (kg/m3), ash content: 70%, appearance: gray powder.

A cross-linking agent consisting of a 2:3 ratio of zinc oxide to magnesium oxide for chloroprene compounds to reduce scorch; dosage: 4-8 phr.


Kadox 911
French process zinc oxide
The HallStar Co.
ï

99.6% ZNO; 99.99% through 325 mesh; 0.12 average micron particle size.

Fine particle size and high purity zinc oxide.


Zoco 604
French process zinc oxide
CMM
ï

High quality, odorless, white powder; surface area 4.00-6.00; sp.gr, 5.6; meets ASTM D79.

NR, SR latex activator, reinforcer and hiding pigment; medium cure rate.


Kadox 720
French process zinc oxide
The HallStar Co.
ï

99.6% ZNO, 99.99% through 325 mesh; 0.21 average micron particle size

Activator with moderate reinforcement and good dispersion.





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Click companies below for more information about Activators

Suppliers listed
on this page

Rhein Chemie Corporation

Flow Polymers LLC

Chemtura

H.M. Royal, Inc.

Natrochem

Dynasol

DJ Semichem

Struktol Company of America, LLC

The HallStar Co.

CMM

     

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