Accelerators: Rubber Accelerators, Polymer & Chemical Accelerators.

Rubber Accelerators

Specialty Chemicals and Additives For Rubber,
Polymers, Textiles, Lubricants and Intermediates.

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	Western Reserve Chemical
	4837 Darrow Road
	Stow, OH 44224
	800-321-2676
	330-650-2244
	FAX-330 650-2255
	support@wrchem.com

Rubber Accelerators

Western Reserve Chemical supplies the following chemicals and additives throughout the North American markets from our three warehouses located across the United States.

	Westco™ BZ
	(Zinc Dibutyl Dithiocarbamate) An accelerator for natural and synthetic rubber and latex. Provides fast cures at low temperatures; faster cures than EZ(ZDEC or MZ(ZDMC).
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	Westco™ CBS
	(n-cyclohexyl -2- benzothiazole sulfenamide) Westco™ CBS is a delayed action accelerator suitable for natural rubber and synthetic rubber; produces vulcanizates with high modulus and high tensile strength.
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	Westco™ CBS Soft Granule
	(n-cyclohexyl -2- benzothiazole sulfenamide) Westco™ CBS Soft Granuleis a delayed action accelerator suitable for natural rubber and synthetic rubber; produces vulcanizates with high modulus and high tensile strength.
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	Westco™ DBTU
	Westco™ DBTU is used as an ultra accelerator for CR, EPDM and chlorobutyl rubber; it is also used in latex as a primary accelerator. It is active even at low temperatures. Westco™ DBTU can be used without zinc oxide for transportation articles. It is an antioxidant in adhesive systems. It provides better scorch protection than Westco™ DETU.
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	Westco™ DCBS
	Westco™ DCBS is a slow curing, delayed action, accelerator especially useful in curing thick rubber parts.
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	Westco™ DETU
	(Diethylthiourea) Westco™ DETU is recommended mainly for latex, where it is used as a primary accelerator. It is active even at low temperatures. Westco™ DETU can be used without zinc oxide for transportation articles. .
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	Westco™ DPG
	(Diphenyl Guanidine) Westco™ DPG can be used as a secondary accelerator with thiazoles and sulphenamides in NR and SBR compounds. Exhibits better storage stability compared to thiuram and dithiocarbamates but is not as active. Can be used in latex as secondary gelling agent (foam stabilizer) in the silicoflouride foam process.
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	Westco™ DOTG
	Seldom used alone, commonly with thiazoles, thiurams, dithiocarbamates and sulfenamides to promote its activity. Slightly more active than DPG. Unsuitable for food-related products or medical products.
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	Westco DPTT
	Westco™ DPTT is used as the primary or secondary accelerator in natural and synthetic elastomers and as a sulfur donor in low sulfur or sulfurless cures. Westco™ DPTT is non-staining and is suitable for use in light colored vulcanizates. Westco™ DPTT provides better processing safety and heat stability than other thiurams.
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	Westco™ DTDM
	Sulfur donor vulcanizing agent for low sulfur or non-sulfur cure system; provides good heat aging resistance in NR and SR when used with sulfenamide accelerators. Crystal form is free flowing and non-dusting.
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	Westco™ EZ
	ZINC DIETHYLDITHIOCARBAMATE
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	Westco™ ETU
	Westco™ ETU is an ultra accelerator for polychloroprene rubber. It is also used in latex as a primary accelerator. It is active even at low temperatures. Westco™ ETU can be used without zinc oxide for transportation articles. It is an antioxidant in adhesive systems
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	Westco™ ETU-80
	80% ETU in an Elastomeric Binder
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	Westco™ MBT
	Mercaptobenzothiazole Westco™ MBT is a primary accelerator for natural rubber and synthetic rubbers. Excellent low temperature curing properties. May be used in non staining and non black applications.
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	Westco™ MBT SFOP
	Mercaptobenzothiazole Westco™ MBT is a primary accelerator for natural rubber and synthetic rubbers. Excellent low temperature curing properties. May be used in non staining and non black applications.
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	Westco™ MBT Soft Granule
	Mercaptobenzothiazole Westco™ MBT is a primary accelerator for natural rubber and synthetic rubbers. Excellent low temperature curing properties. May be used in non staining and non black applications.
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	Westco™ MBDS
	Westco™ MBDS - 4-Morpholinyl-2-benzothiazole disulfide
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	Westco™ MBTS SFOP
	Benzothiazole disulfide (2,2I- Dithio-dibenzothiazole) Westco™ MBTS is a general purpose accelerator for sulfur cures. It is very active above 142°C (287°F). Unlike thiuram disulfides, Westco™ MBTS does not split off active sulfur during vulcanization. For use in natural and synthetic rubber processing.
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	Westco™ MBTS
	Dibenzylthiazyl disulfide (2.2-Dithio-bis-benzothiazole) Westco™ MBTS is a general purpose accelerator for sulfur cures. It is very active above 142°C (287°F). Unlike thiuram disulfides, Westco™ MBTS does not split off active sulfur during vulcanization. For use in natural and synthetic rubber processing.
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	Westco™ ODES
	N-oxydiethylenethiocarbamul-N’oxydiethylene sulfenamide Westco™ ODES is used as a primary accelerator for EPDM, NR and most synthetic rubbers. It is very active at cure temperatures above 300°F; below 300°F cure temperature Westco™ ODES gives excellent cures with the addition of Westco™ OBTS, MBT or MBTS. Westco™ ODES provides excellent reversion resistance in high temperature cures.
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	Westco™ MZ
	Westco™ MZ is an ultra accelerator for NR and SR rubber and latexes and it active over a wide temperature range.
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	Westco™ MZ SFOP
	Westco™ MZ SFOP is an ultra accelerator for NR and SR rubber and latexes and it active over a wide temperature range.
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	Westco™ OBTS
	A delayed action accelerator of vulcanization, especially suitable for the basic furnace carbon black natural rubber and synthetic rubber, able to improve the physical and chemical properties of rubber, also used in tire rubber.
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	Westco™ TBBS Soft Granules
	N- tert-butyl-benzothiazole sulfonamide. A delayed action accelerator for use in natural rubber and synthetic rubbers such as SBR, BR, NBR and EPDM. Lower scorch than CBS and can be more safely processed. But slightly faster scorch than OBTS. High modulus and excellent physical properties, suitable for tire treads and mechanical goods.
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	Westco™ TBBS
	N- tert-butyl-benzothiazole sulfonamide. A delayed action accelerator for use in natural rubber and synthetic rubbers such as SBR, BR, NBR and EPDM. Lower scorch than CBS and can be more safely processed. But slightly faster scorch than OBTS. High modulus and excellent physical properties, suitable for tire treads and mechanical goods.
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	Westco™ TBzTD
	Fast curing primary or secondary accelerator in NR, SBR, NBR. Low to nil nitrosamine; not carcinogenic. Longer scorch times.
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	Westco TETD
	Westco™ TETD is an accelerator suitable for most sulfur-cured elastomers. It acts as both an accelerator and a vulcanizing agent. Its low melting point provides excellent dispersion in soft compounds. It is used as a stabilizer in sulfur modified polychloroprene. Less scorch and blooming, good processing safety. Can be used in CR as an anti-scorching agent.
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	Westco™ TMTD
	Tetramethylthiuram Disulfide Westco™ TMTD is the most widely used among ultra-accelerators in natural and synthetic rubber; acts as a retarder for CR; an effective accelerator for low temperature cures.
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	Westco™ TMTD SFOP
	Tetramethylthiuram Disulfide Westco™ TMTD is the most widely used among ultra-accelerators in natural and synthetic rubber; acts as a retarder for CR; an effective accelerator for low temperature cures.
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	Westco™ TIBTD
	Westco™ TIBTD: Tetraisobutylthiuram disulfide, Rubber Accelerator, Polymer and Chemical Accelerators. Westco™ 200-AD is a high purity, highly reactive grade of magnesium oxide made from magnesium chloride brine. Westco™ 200-AD is used as a scorch retarder in a variety of elastomers including chloroprene, chlorosulfonated polyethylene and fluoroelastomers. Westco™ 200-AD is also used as a thickener in sheet molding compounds and an acid acceptor in halogenated polymers.
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	Westco™ TMTM
	Tetramethylthiuram Monosulfide Westco™ TMTM is used as a secondary accelerator with sulfenamides, thiazoles and guanidines; good processing safety compared with other thiurams.
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	Westco™ BI
	Westco™ BI - Bismuth dimethyldithiocarbamate
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	Westco™ ZBEC
	Zinc dibenzyldithiocarbamate Primary or secondary accelerator for NR, IIR, SBR, EPDM. Scorch resistance. Low to nil nitrosamines. Primary or secondary accelerator for natural and synthetic lattices. Excellent accelerator in gel and non-gel latex systems.
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	Westco™ ZiB
	Zinc diisobutyldithiocarbamate
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	Westco™ ZMBT
	Zinc 2- Mercaptobenzothiazole) Primary accelerator for NR, SR and their latices; used as a secondary accelerator in sulfur cured latex.
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Technical Data and MSDS Sheets

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Tetramethylthiuram Disulfide

Westco™ TMTD is the most widely used among ultra-accelerators in natural and synthetic rubber; acts as a retarder for CR; an effective accelerator for low temperature cures.

Tetramethylthiuram Disulfide

Westco™ TMTD is the most widely used among ultra-accelerators in natural and synthetic rubber; acts as a retarder for CR; an effective accelerator for low temperature cures.