Rubber Compounding Materials
Vulcanization Materials
Activators


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Properties

Function & Compounding


Kenmix
Dyphos/P 70/30
Flow Polymers LLC
ï

Sp.gr. 2.34

Activator in paste form in Kenflex P.


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

Elastomeric dispersion.

Activator for natural and synthetic rubber.


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.


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

Sp.gr. 1.15

Activator in paste form in Kenflex P.


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

Sp.gr. 1.15

Activator in paste form in Kenflex N.


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.


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 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


Westco CAO-90
Calcium oxide dispersion
Western Reserve Chemical
ï

Sp.gr. 2.44; 86% min. calcium oxide in a high viscosity process oil

Activator; dessicant, absorbs moisture and prevents porosity in rubber.


Westco CAO-80
Calcium oxide disp.
Western Reserve Chemical
ï

Sp.gr. 2.1; a fine dispersion of CAO in a high viscosity processing oil.

Activator, desiccant, absorbs moisture and prevents porosity.





Parasec R
Calcium oxide (75% active)
Parabor Industria E Comercio de Produtos Quimicos LTDA
ï

Creamy-gray powder; sp.gr. 2.20.

Dessicant in compounding for continuous cures; prevents porosity in rubber vulcanizates; acceleration activator.


Fluorocal H; Fluorocal O
Calcium hydroxide; calcium oxide
HB Chemical
ï

Tightly controlled particle size distribution for calcium hydroxide H-20, H-30; uniform, consistent particle size calcium oxide O-15.

Intended for FKM compounds where superior dispersion and consistency is required; several grades and packages available; allows single pass FKM mixing.


Hallco CAOP
Calcium hydroxide/DOP dispersion
The HallStar Co.
ï

Sp.gr. 1.05; (80% calcium hydroxide) finely dispersed in DOP; free flowing powder, dustless.

Recommended for mill and internal mixing; offers better dispersion and safety.


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.


Kenmix
C-5 paste
Flow Polymers LLC
ï

Activator for polysulfide compounds.


Zinc Oxide Transparent
Basic zinc carbonate
Lanxess Corporation
ï

Sp. gr, 3.5; white to light yellowish powder; zinc content as zinc oxide approx. 72%; shipped: bag.

A very highly disperse accelerator activator without pigmenting properties; excellent in the manufacture of transparent rubber goods and adhesives; acts as an activator in latex applications


Kenmix
Barium carbonate/P 80/20
Flow Polymers LLC
ï

Sp.gr. 2.57

Activator in paste form in Kenflex P.


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.


Zinc Oxide Dispersion - Taber brand
American and French zinc oxide and SBR
Taber Inc.
ï

A polymer masterbatch of 80% American or French zinc oxide and SBR.

Improve dispersion and processing.


Rhenofit 2120
Active magnesium oxide
Rhein Chemie Corporation
ï

Sp.gr. 3.57; white powder

An active magnesium oxide especially selected for the use in the rubber processing industry; improves the processing safety of rubber compounds based on CR, CSM, CM and CIIR; raises the critical temperature of basic accelerators and thus prevents scorching; In acid accelerators, the activiting temperature of acid accelerators is decreased; in polymers containing chlorine, especially CR, it serves as an acid acceptor and thus improves the aging properties of the vulcanizates; in cold cured rubber coated fabrics, Rhenofit 2120 is used to neutralize acid traces; moduli are generally increased by its addition.





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Click companies below for more information about Activators

Suppliers listed
on this page

Flow Polymers LLC

Chemtura

Rhein Chemie Corporation

Western Reserve Chemical

Parabor Industria E Comercio de Produtos Quimicos LTDA

HB Chemical

The HallStar Co.

Akrochem Corp.

Lanxess Corporation

Akron Dispersions, Inc.

Taber Inc.

     

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