Rubber Compounding Materials
Vulcanization Materials
Activators


347 items found
Search by for

Tradename
Composition
Supplier ñ

Properties

Function & Compounding


Westco MO-140
Magnesium oxide
Western Reserve Chemical
ï

Fine white powder; surface area 45 m2/g.

Scorch retarder, curing agent and acid acceptor in polychloroprene and other chlorinated polymers.


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.


CR 4
ZnO
Western Reserve Chemical
ï

White powder; 99.9% passes 325 mesh; sp.gr. 5.6; surface area 5 m2/g; 99.9% ZnO min.

Activator for NR, SR, reinforcer and pigment.


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.


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.


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.


Zinc Oxide Dispersion
60% zinc oxide dispersed in water
Vanderbilt Chemicals, LLC
ï

White dispersion; total solids (2 hrs.@100-105C) 59.5 to 63.5%; density at 25C is 1.98 Mg

This dispersed form of zinc oxide permits its direct incorporation into latex compounds. Zinoxide at o.5 to 6.0 phr is used to activate the cure of NR,SBR and NBR latex compounds; zinc oxide acts as a vulcanizing agent in CR and XNBR latex; aminimum of 5 phr zinc oxide is generally used for the compounding of CR latexes.


Val-Mix ZNO-65
65% zinc oxide in trans octenamer encapsulation
Valley Rubber Mixing, Inc.
ï

Sp.gr. 3.07; white, random sized free flowing pellet.

NR, SR activator, dispersion in pellet form provides fast and easy incorporation with predictable activation rates.


Val-Mix Cal-90DN
905 calcium oxide in napthenic binder
Valley Rubber Mixing, Inc.
ï

Light gray, free flowing, finely pulverized dustless powder.

Dessicant; lw cost moisture scavenger to prevent porosity in continuous, no pressure curing; high resistance to post-vulcanization formation of white specks; dustless powder improves environmental safety; available in pre-weighed, heat sealed, mixercompatible polybags.





Val-Mix MgO-65
65% Mag. oxide in trans octenamer encapsulation
Valley Rubber Mixing, Inc.
ï

Sp.gr. 2.06; off white, random sized free flowing pellet.

Curing activator and acid acceptor; particularly suited for CR and CM; dispersion in pellet form provides ease of handling and incorporation.


Val-Mix Cal-90 PTOR
90% calcium oxide in trans octenamer encapsulation
Valley Rubber Mixing, Inc.
ï

Light gray, free flowing, finely pulverized lime; random size pellet.

Dessicant, moisture scavenger to prevent porosity in continuous, no pressure curing; high resistance to post-vulcanization formation of white specks; pellet form provides excellent environmental safety; available in pre-weighed, heat sealed, mixer compatible poly bags.


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.


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.


Activator Dispersions - Taber brand
Various activators
Taber Inc.
ï

Paste, polymer masterbatches and netted powders of activators; compatibags, slabbed and/or pellitized masterbatches.

Consistent dispersion to improve processing.


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 Activator 73A
Mixture of zinc salts of aliphatic and aromatic carboxylic acids
Struktol Company of America
ï

Dropping Point: 105-117C, Specific Gravity: 1.24, Zinc Content: 20% max, Appearance: antique white pastilles

Improvements include: prolonged reversion time, higher modulus, less heat build-up under dynamic load, and reduced compression set at elevated temperatures.


Struktol Zinc Stearate
Manufactured from a high quality technical grade stearic acid in a tightly controlled production operation that guarantees product uniformity.
Struktol Company of America
ï

Appearance: Three forms are available bead, pastille, and powder; zinc stearate bead is a free-flowing spray-dried microbead; the pastille is lens-shaped and approximately 1/8 inch in diameter; the bead and pastille are relatively new product forms in the industry; they have the major advantage of being essentially dust-free during handling, in contrast to powder forms; in all other aspects, the properties are equivalent to the standard stearates being used in the plastic and rubber industries.

Serves primarily as a lubricant, but also as a densifying agent and a partitioning agent; used extensively in color concentrates as a dispersion aid; used to improve processing of the styrenics and polyesters, and to a lesser extent with the olefins; In rubber applications, it functions as an elastomer processing aid and release agent.


Struktol Activator 73LM
Mixture of zinc salts of aliphatic and aromatic carboxylic acids
Struktol Company of America
ï

Dropping point: 94-106C; specific gravity: 1.15; zinc content: 12% max; appearance: antique white pastilles

Effective activator for sulfur vulcanization, used at 2 - 5 phr, designed for lower temperature mixes compared to Activator 73A.


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
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.





Go to Page
2 3 4 5 6 7 8 9 10  Next
Show items at a time

Ø Main Menu
Ø Subscribe

Click companies below for more information about Activators

Suppliers listed
on this page

Western Reserve Chemical

Vanderbilt Chemicals, LLC

Valley Rubber Mixing, Inc.

TSE Industries Inc.

Taber Inc.

Struktol Company of America

     

This page, and all contents, are Copyright (c) 2018 Rubber World Magazine.
This site was created by Rubber World Magazine's Electronic Publishing Division, Akron, Ohio.