Outstanding chemical foaming agent with a relatively low decomposition temperature for producing cellular rubber and expanded plastic. Similar to CELOGEN® OB, but it has been oil treated to reduce dusting.
Product Overview
CELOGEN® OT is a chemical foaming agent that produces a fine, uniform, closed cell structure. It has a relatively low decomposition temperature and small particle size.

CELOGEN® OT can be catalyzed by a variety of chemicals. Very strong activators include ACTICELL® U, triethanolamine, and peroxides. Calcium oxide, calcium stearate, stearic acid, cadmium and lead type vinyl stabilizers are all moderate activators. Adipic acid, benzoic acid, salicylic acid, citric acid, lead stearate and zinc stearate are examples of weak activators.
Product Specifications
Molecular Weight: 358
Gas Content: Mostly nitrogen
Appearance: White powder
Purity: 93.0% min
Average Particle Size: 5-15 µm
Heat Loss: 0.5% max
Decomposition Point: 158-164 °C
Gas Yield: 125-140 ml/g @ S.T.P.
pH: 6-8
Soluble: Dimethyl sulfoxide and dimethylformamide
Insoluble: Benzene and water
Primary Chemistry: 4,4'-Oxybis (benzenesulfonylhydrazide)
Features & Benefits
Evolves ammonia-free gas
Does not effect cure rate of rubber
Does not effect PVC stability
Low dusting
Problems Solved
Can't use Azodicarbonamide foaming or blowing agents
Temperature limitation for the activation of foaming or blowing agents
Phenolic resins, thermoplastic rubber, NBR-PVC blends for cellular cable insulation