WESTCO™ CBS Accelerator N-cyclohexyl-2- benzothiazole sulfenamide CAS# 95-33-0

WESTCO™ CBS is a delayed action sulfenamide accelerator suitable for natural rubber and synthetic rubber.  It has the ability to provide fast efficient mixing without scorching or sacrificing physical properties.  WESTCO CBS provides vulcanizates with high tensile strength.


Appearance: Light Grey

Powder, Powder Oil, Granular, Soft Granular

*Initial Melt Point

97°C Min.

*Final Melt Point

99°C Min.


.5% Max.

*Ash content

.5% Max.

*Sieve residue on 100 Mesh(1)

0.1% Max.


96% Min.

Total sulfur


*Oil Content(2)


*Free amines (Cyclohexylamine)

0.5% Max.

*Grain strength(3)


Alcohol Insolubles

0.5% Max.

Specific Gravity

1.29 typical

* Actual data will be reported on Certificate of Analysis 1) Granular not sieve tested. 2) Oil content not applicable to granular and powder forms. 3) Soft granule grain strength: 2 Max.

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      • Western Reserve Chemicals
      • 60 S. Seiberling Street
      • Akron, OH 44305

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