WESTCO™ AO-29 Styrenated diphenylamine CAS# 68442-68-2

WESTCO AO-29 is a non-staining, slightly discoloring antioxidant for natural and synthetic rubbers and latices. WESTCO AO-29 provides excellent resistant to heat aging and flex fatigue. It is especially effective in polychloroprene.  WESTCO is a chemical analog to Wingstay 29.

Packaging: 200 kg net wt drums

Wingstay 29 is a trademark of Omnova.


Appearance: Light yellow liquid
*Viscosity (@ 25C)

20,000 – 40,000 mPa

*Ash content

0.3% Max.

*Loss on heating

0.3% Max.

*Refractive index @ 25°C:


*Actual tech data / technical data values reported on Certificate of Analysis

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      • Akron, OH 44305

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