WESTCO™ OBSH p,p’-Oxybis-(benzenesulfonyl hydrazide) CAS# 80-51-3

WESTCO OBSH is a non-staining, non-discoloring blowing agent for rubber and plastics. It has a low decomposition temperature allowing it to be used without activators.

Packaging: 25 kg/Fiber Drum lined with PE bags inside.

Storage Conditions: Keep in cool dry place at room temperature, avoid exposure to sunlight.


Appearance: White Powder
*Gas release

125 ± 6ml/g

*Decomposition temperature

150 - 165 ºC

Average Particle size

6 – 8 microns


0.4% Max

pH Value

5.5 - 7.0

*Values reported on certificate of analysis

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

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