Rubber Compounding Materials
Vulcanization Materials
Activators


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


Polydex M(TEA)75
75% TEA on a Microcel E carrier
Polychem Dispersions
ï

Sp.gr. 1.29; triethanolamine in a powdered form.

Easier handling and faster incorporation for mill and internal mixing.


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.


Zinc Oxide Poly Slab
85% French process zinc oxide in an EPR binder
Polymerics
ï

Sp.gr. 3.38.

Activator for natural and synthetic rubber; excellent incorporation and dispersion; very easy handling.


DOTG Poly Slab
75% EPR binder
Polymerics
ï

Sp.gr. 1.09; pellet or slab.

Predispersed activator for thiazoles; better processing safety than DPG.


Magox Premium
Magnesium oxide
Premier Magnesia, LLC
ï

Odorless, high surface area, non-toxic white powder; available in bulk or 50 lb. poly-lined bags.

For CR, CSM, PE, NBR, polysulfides; vulcanizing agent; activator; acid acceptor; useful in adhesives and polyester sheet molding compounds.


MgO

Rhein Chemie Corporation
ï

See also Mag-Paste, Mag-Beads, Rhenogran 2060, Scorchguard O, Rhenofit: 2060,2120,2150, D/A


Nickle Dimentyl dithiocarbamate (NDMC)

Rhein Chemie Corporation
ï

See also Curebead PB(NDMC)-70


PLC(SR517)-72
72% SR517
Rhein Chemie Corporation
ï

Sp.gr. 1.26; free flowing dust suppressed powder on an inert carrier.

PLC(SR517)-72 is a replacement for other SR517 liquids sould be evaluated as a direct replacement on an active ingredient basis; the improved handling and reduced waste can reduce raw material requirements





PLC(TEA)72
72% triethanloamine on an inert mineral carrier.
Rhein Chemie Corporation
ï

Sp.gr. 1.33; off-white dustless powder form

Powdered liquid concentrates are free flowing dustless powder dispersions of liquid ingredients on an inert mineral carrier.


Rhenofit TRIM/S
70% trimethylolpropane trimethacrylate, 30% silica
Rhein Chemie Corporation
ï

Sp.gr. approx. 1.27; white powder, non-dusting, non-staining

Crosslinking activator for the peroxide vulcanization of synthetic rubbers.


Mag-Beads
Magnesium oxide beads
Rhein Chemie Corporation
ï

Sp.gr. 1.76; odorless, tan, free-flowing beads in high flash organic binder.

For CR, CSM, PE, NBR, polysulfides; activator, acid acceptor and vulcanizing agent; this dispersion in bead form resists hydration, handles easily and incorporates rapidly.


Magnesium Oxide (MgO)

Rhein Chemie Corporation
ï

See also Mag-Paste, Mag-Beads, Rhenofit 2060, Rhenofit 2120, Rhenofit 2150, Rhenofit D/A, Rhenogran G-1, Rhenofit G-3, Rhenogran MgO-75, Scorchguard O


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.


Poly-Dispersion ERD-90
Red Lead in an EPR binder
Rhein Chemie Corporation
ï

Sp.gr. 4.57; Red Lead, 90%; very fine dispersion in elastomeric slab form, scored, dusted and separated with PE.

To produce low water absorption polychloroprene compounds and EPDM wire; provides processing and handling safety, excellent dispersion, uniform cures curing activator for CR, IIR, CSM.


Poly-Dispersion T(HRL)D-90
Fine particle size litharge in an EPDM binder
Rhein Chemie Corporation
ï

Sp.gr. 4.75; litharge 90%; very fine dispersion in elastomeric slab form, scored, dusted, and separated with PE.

chlorosulfonated polyethylene stabilizer, add in first step in mixing cycle; provides processing and handling safety, excellent dispersion, uniform cures.


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.


Rhenomag G 3
75% very acitve MgO in polymer binder
Rhein Chemie Corporation
ï

Sp.gr. 1.56; white pellets

Curing activator and acid acceptor, particularly suitable for CR and CM.


Rhenofit CF
Specially treated very fine Ca(OH)2
Rhein Chemie Corporation
ï

Sp.gr. approx. 2.2 white powder

Crosslinking activator for fluoro-elastomers.





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