Rubber Compounding Materials
Vulcanization Materials
Activators


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PolyBound 498 Zinc Oxide
85% ZnO in a proprietary binder
HEXPOL Compounding
ï

Sp.gr. 3.25; crumb

Polymer bound powder form of zinc oxide; dust free form; incorporates rapidly.


PolyBound 498 Zinc Oxide
85% ZnO in a proprietary binder
Harwick Standard Distribution Corporation
ï

Sp.gr. 3.25; crumb

Polymer bound powder form of zinc oxide; dust free form; incorporates rapidly.


Poly-Dispersion JZFD-90P
88% zinc oxide in a NR binder
Rhein Chemie Corporation
ï

Sp.gr. 3.50; white pellets

Vulcanizing activator for use in natural and synthetic rubber compounds.


Zinc Oxide Ultra 88
88% zinc oxide treated with a proprietary polymer binder
Polychem Dispersions
ï

Sp.gr. 3.50; semi dustless and free flowing powder.

Activator for polymer cure systems; used to speed the incorporation of zinc oxide in mill or mixer compounds.


Ultra (ZNO) 88
88% zinc oxide treated with a proprietary polymeric binder
Polychem Dispersions
ï

Sp.gr. 3.50; shipped 50 lb. bags.

Semi dustless and free flowing powder.


Elast-O-Cal 90
90% calcium oxide in oil binder
Rhein Chemie Corporation
ï

Sp.gr. 2.73; off-white wetted powder

An efficient moisture absorber for all commonly used elastomers imparting excellent protection against porosity or blistering in rubber products produced in low-pressure, high-temperature cure systems such as microwave units, LCM, hot air cures or fluidized bed units.


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.


Elast-O-Cal P-90
90% CaO in DOP
Rhein Chemie Corporation
ï

Sp.gr. 2.70; wetted powder in DOP carrier (see calcium oxide)

An efficient moisture absorber for all commonly used elastomers imparting excellent protection against porosity or blistering in rubber products produced in low-pressure, high-temperature cure systems such as microwave units, LCM, hot air cures or fluidize baths.


Polydox C-90
90% CaO, oil treated
Polychem Dispersions
ï

Sp.gr. 2.43; calcium oxide, oil treated in a powder form.

Similar to Polydex C-80; is also used as a dessicant in vinyl plastisols


Kenlastic K-8895
90% EP #41 white lead/EPM
Flow Polymers LLC
ï

Sp.gr. 3.93

Activator - a dispersion of EP #41 White Lead in polymer form





Kenlastic K-6642
90% fumed litharge/EPM
Flow Polymers LLC
ï

Sp.gr. 4.71

Activator, a dispersion of fumed litharge in polymer form


Kenlastic K-13884
90% fumed litharge/PIB
Flow Polymers LLC
ï

Sp.gr. 4.91

Activator, a dispersion of fumed litharge in polymer form


Red Lead Poly Slab
90% red lead in an EPR binder
Polymerics
ï

Sp.gr. 4.63; Red Lead in a rubber slab form; excellent storage stability.

Activator for NR and SRs; excellent incorporation and dispersion; very easy handling.


Red Lead FlowSperse
90% Red Lead on different carriers
Flow Polymers LLC
ï

Past or elastomeric dispersion.

Prespersion of red lead; vulcanizer for halogenated polymers.


Poly-Dispersion GRD-90
90% Red Lead oxide in an ECO binder
Rhein Chemie Corporation
ï

Sp.gr. 5.18; orange slabs

Used as a cure activator in ECO cure systems; the red lead acts as an acid scavenger for the cure system allowing a more rapid cure.


Poly-Dispersion TRD-90
90% red lead oxide in an EPDM/EVA binder
Rhein Chemie Corporation
ï

Sp.gr. 4.58; orange slabs

Preferably used as an activator in acid resistant compounds. It considerably reduces the swelling of vulcanizates in water; is suitable as an oxidizing agent for the vulcanization of butyl rubber with p-quinone dioxime; can be used to improve the heat resistance in peroxide cured CPE compounds; is not recommended for use in thiadiazole cured CPE; filler in compounds for protective covering, because of the high absorption capacity to x-rays.


Kenlastic K-21409
90% red lead/CPE
Flow Polymers LLC
ï

Sp.gr. 5.08

Activator, a dispersion of red lead in polymer form


Kenlastic K-16148
90% red lead/ECO
Flow Polymers LLC
ï

Sp.gr. 5.42

Activator, a dispersion of red lead in polymer form


Kenlastic K-6640
90% red lead/EPM
Flow Polymers LLC
ï

Sp.gr. 4.56

Activator, a dispersion of red lead in polymer form


Kenlastic K-8135
90% red lead/PIB
Flow Polymers LLC
ï

Sp.gr. 4.72

Activator, a dispersion of red lead in polymer form





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HEXPOL Compounding

Harwick Standard Distribution Corporation

Rhein Chemie Corporation

Polychem Dispersions

Valley Rubber Mixing, Inc.

Flow Polymers LLC

Polymerics

     

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