Rubber Compounding Materials
Vulcanization Materials
Activators


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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


FE(MAG-HA)-55
55% magnesium oxide in Carnauba wax
Rhein Chemie Corporation
ï

Sp.gr. 1.60; free flowing bead.

FE(MAG-HA)-55 dispersion is a protected form of magnesium oxide for general use in fluoroelastomer compounding; will improve dispersion, property consistency, and reduce mixing time.


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 2642
Combination of activating substances based on urea bound to high activity silica
Rhein Chemie Corporation
ï

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

Accelerator activator for the vulcanization of CO and ECO.


Rhenogran CaO-80
80% CaO in polymer binder
Rhein Chemie Corporation
ï

Sp.gr. approx. 2.25; grey polymer-bound granules

Desiccant for rubber compounds of all kinds to prevent porosity.


Rhenomag P 2
100% 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.


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


Rhenogran MgO-75
75% magnesium oxide with dispersion aids and polymeric binder
Rhein Chemie Corporation
ï

Sp.gr. 2.00; white to gray pellets

Curing activator and acid acceptor particularly suitable for polychloroprene rubber (CR) and adhesives


Rhenofit TAC/S
70% triallyl cyanurate 30% silica
Rhein Chemie Corporation
ï

Sp.gr. 1.25; fine white crumbles

Cross-linking activator for peroxide vulcanization; technical molded and extruded articles based on EPDM, EPM, CM and others, e.g., profiles, seals, cable coverings and bushings.


Zic-Stick 'SG'
90% zinc oxide
Rhein Chemie Corporation
ï

Sp. gr. approx. 3.66; very fine particle size

Activator for NR's and SR's, vulcanizer for polychloroprene and other halogenated elastomers, superior activity.





Calcium Hydroxide

Rhein Chemie Corporation
ï

See also FE(Ca(OH)2)-68, and Elast-O-Sperse RS-1


Rhenogran HPCA-70
60% methyl-2-mercaptobenzimidazol and 1,8 diazabicyclo-5,4,0 undec-7-en, in a polymer binder
Rhein Chemie Corporation
ï

Sp.gr. 1.1; off white granules

Can replace MgO in polychloroprene compounds; excellent heat aging properties can be achieved; replacement of MgO in blends with HIIR compounds is possible.


Rhenofit D/A
Highly reactive magnesium oxide
Rhein Chemie Corporation
ï

Sp.gr. 3.60; white powder

A highly reactive magnesium oxide intended specifically for use in the rubber processing industry; improves the processing safety of CR, CSM, CM and CIIR based rubber compounds by increasing the critical temperature of basic accelerators; reduces the susceptibility of rubber compounds to scorching; In acid accelerators, it lowers the necessary activation temperature; in polymers containing halogen, and particularly in CR, it acts as an acid acceptor, thereby improving aging properties; in cold-cured fabric proofing, it serves to neutralize traces of acid; moduli are generally increased by Rhenofit D/A.


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.


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.


Calcium Oxide

Rhein Chemie Corporation
ï

See Rhenogran CaO-80, Rhenofit C, Elast-O-Sperse RS-1, FE(Ca(OH)2)-68, FE (CaO)-75 and Elast-O-Cal S-80, Elast-O-Cal 80, Elast-O-Cal 80HT, Elast-O-Cal 80FDA,Elast-O-Cal C-75, Elast-O-Cal 90, Elast-O-Cal (G-50)-90, Elast-O-Cal P-90


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.


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.


Zic-Stick '85'
Zinc oxide dispersion
Rhein Chemie Corporation
ï

Sp.gr. 3.66; zinc oxide content approx 90%; very fine dispersion of highly active zinc oxide

Activator for NR and SRs; vulcanizer for polychloroprene and other halogenated elastomers; superior activity coupled with rapid complete incorporation enables 3 parts of Zic Stick 85 to replace 5 parts of zinc oxide powder in most applications.


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.





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