Tradename
Composition ò
Supplier

Properties

Function & Compounding

Mastermix Zinc Oxide 4849 Slab-90
90% Zinc Oxide in an EPR binder
HEXPOL Compoundingï

Sp. gr. 3.73

Dispersed form of medium surface area zinc oxide for use in natural and synthetic rubbers.

Mastermix Zinc Oxide 5118 Slab-90
90% Zinc Oxide in an EPR binder
HEXPOL Compoundingï

Sp. gr. 3.75

Dispersed form of a high surface area zinc oxide for use in natural and synthetic rubbers.

Litharge 33 Sublimed
99.0% PbO red lead content 0.04%, Free lead content
Flow Polymers LLCï

Sp.gr. 9.5.

Used in rubber compounding similarly to litharge 28 where a smaller particle size is desired; a uniformly high purity material with a light tan color.

Stan-Mag 1326 HR
A proprietary blend of zinc and magnesium oxides.
Harwick Standardï

Sp.gr. 3.17; powder

Component blend vulcanization system for CR polymers

Rhenofit 2120
Active magnesium oxide
Rhein Chemie Corporationï

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.

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.

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.

Kenmix
Barium carbonate/P 80/20
Flow Polymers LLCï

Sp.gr. 2.57

Activator in paste form in Kenflex P.

Zinc Oxide Transparent
Basic zinc carbonate
Lanxess Corporationï

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
C-5 paste
Flow Polymers LLCï

Activator for polysulfide compounds.

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.

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.

Fluorocal H; Fluorocal O
Calcium hydroxide; calcium oxide
HB Chemicalï

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.

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

Creamy-gray powder; sp.gr. 2.20.

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

Westco CAO-80
Calcium oxide disp.
Western Reserve Chemicalï

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

Activator, desiccant, absorbs moisture and prevents porosity.

Westco CAO-90
Calcium oxide dispersion
Western Reserve Chemicalï

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

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

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.

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.

Stan-Mag MBZ
Co-dispersion of Magnesia and Zinc
Harwick Standardï

Free flowing powder, 2.0 sp. gr., 65% active

Proprietary blend of zinc and magnesium oxides for polychloroprene vulcanization. Designed for use at 3 - 5 phr in polychloroprene to replace all magnesium and zinc oxide in a formulation.

Rhenofit 1987
Combination of activating substances based on urea
Rhein Chemie Corporationï

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 Corporationï

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

Accelerator activator for the vulcanization of CO and ECO.

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