Rubber Compounding Materials
Vulcanization Materials
Activators


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Function & Compounding


PolyBound 463 Mag Oxide-70
70% magnesium oxide encapsulated in proprietary binder
HEXPOL Compounding
ï

Sp. gr. 1.83; crumb

Polymer bound powder form of MgO easy to handle; dust free form incorporates rapidly during mixing.


Mastermix Lime 2182 Paste-70
70% lime
Harwick Standard
ï

Sp. gr. 1.97

Dispersed form of Calcium Oxide for use in natural and synthetic rubbers.


Mastermix Lime 2182 Paste-70
70% lime
HEXPOL Compounding
ï

Sp. gr. 1.97

Dispersed form of Calcium Oxide for use in natural and synthetic rubbers.


Mastermix HMT 402 Paste-70
70% HMT in an aromatic oil
HEXPOL Compounding
ï

Sp. gr. 1.21

Dispersed form of HMT - Hexamethylenetetramine for use in natural and synthetic rubbers.


Redimix 4167 HMT-70
70% HMT in a DOP binder
HEXPOL Compounding
ï

Sp. gr. 1.20

Dispersed form of HMT - Hexamethylenetetramine for use in natural and synthetic rubbers.


Mastermix Hexa 4165 Slab-70
70% Hexa in an EPR binder
HEXPOL Compounding
ï

Sp. gr. 1.15

Dispersed form of HMT - Hexamethylenetetramine for use in natural and synthetic rubbers.


Rhenofit EDMA/S
70% ethylene glycol dimethacrylate, 30% silica
Rhein Chemie Corporation
ï

Sp.gr. approx. 1.25; white powder, non-dusting, non-staining

Crosslinking activator for the peroxide vulcanization of synthetic rubbers.


Mastermix Activator (Caytur 4) 4961 Slab-70
70% Caytur 4 in an EPR binder
HEXPOL Compounding
ï

Sp. gr. 1.39

Dispersed form of Caytur 4 - Partial complex of zinc chloride with 2,2'-dibenzothiazyl disulfide (MBTS) for use in natural and synthetic rubbers.


FE(Ca(OH)2)-68
68% calcium hydroxide in Carnauba wax
Rhein Chemie Corporation
ï

Sp.gr. 1.64; free flowing bead. (see Calcium Hydroxide).

FE(Ca(OH)2)-68 dispersion is a protected form of calcium hydroxide for general use in fluoroelastomer compounding; will improve dispersion, property consistency, and reduce mixing time; for safe handling of calcium hydroxide, FE (Ca(OH)2)-6


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.





DLP 1007 SR-350-65H (TMPTMA)
65% SR-350 on a carrier
HEXPOL Compounding
ï

Dry Liquid Powder - free flowing version of the SR-350 liquid - TMPTMA - Trimethylolpropane Trimethacrylate. Easier to handle, weigh and incorporate into NR and SR compounds.


Stan-Mag Bar
65% MgO in a proprietary binder
Harwick Standard
ï

Sp.gr. 1.80;bar form

Medium-high activity grade MgO used as an activator, acid acceptor and scorch protector for halogenated polymers such as CR and CSM


Stan-Mag Bar
65% Magnesium Oxide in napthenic oil
HEXPOL Compounding
ï

Sp. gr. 1.80

A high activity, high surface area magnesium oxide for use as an acid acceptor in chlorinated polymers CR,CSM and CPE


Mastermix Magnesium Hydroxide 4901 Cube-65
65% Magnesium Hydroxide in a CPE binder
HEXPOL Compounding
ï

Sp. gr. 1.65

Dispersed form of Magnesium Hydroxide for use in natural and synthetic rubbers.


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.


Mastermix Mag Oxide 5826 Red Cube-65
65% Mag Oxide in an EPR binder
HEXPOL Compounding
ï

Sp. gr. 1.55

Dispersed form of a High Activity Mag Oxide for use in natural and synthetic rubbers.


Mastermix HMT 4136 Slab-65
65% HMT in a SBR binder
HEXPOL Compounding
ï

Sp. gr. 1.14

Dispersed form of HMT - Hexamethylenetetramine for use in natural and synthetic rubbers.


DLP 1100 HMMM-65
65% HMMM on a carrier
HEXPOL Compounding
ï

Sp. gr. 1.38

Dry Liquid Powder - free flowing version of the HMMM - Hexamethoxy methylmelamine liquid. Easier to handle, weigh and incorporate into NR and SR compounds.


Mastermix Zinc Oxide 4932 Paste-60
60% Zinc Oxide in a PIB binder
HEXPOL Compounding
ï

Sp. gr. 1.80

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


Mastermix Zinc Oxide 6182 Paste-60
60% Zinc Oxide in a DOTP binder
HEXPOL Compounding
ï

Sp. gr. 1.96

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





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HEXPOL Compounding

Harwick Standard

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