Why It Matters
PVC, EVA and polyolefin foam producers (footwear, gaskets, profiles, integral-skin) use chemical foaming agents to gas-expand and weight-out parts, choosing by decomposition temperature. Exothermic azodicarbonamide gives high gas yield while endothermic bicarbonate systems give finer cells; this page addresses industrial polymer foam only
Solution Approach
PVC, EVA and polyolefin foam producers (footwear, gaskets, profiles, integral-skin) use chemical foaming agents to gas-expand and weight-out parts, choosing by decomposition temperature. Exothermic azodicarbonamide gives high gas yield while endothermic bicarbonate systems give finer cells; this page addresses industrial polymer foam only RawSource supplies the base chemicals that go into these programs. We can help with product selection, grade matching, and sourcing from multiple origins for supply security.
Typical Treatment Workflow
1
System Assessment
Characterize operating conditions—fluid composition, temperature, pressure, flow rates—and benchmark current treatment performance.
2
Chemistry Selection
Match base chemicals to your operating envelope. Factor in compatibility with existing programs, regulatory constraints, and downstream impacts.
3
Dosage & Delivery
Determine optimal treat rates through jar testing or field trials. Configure packaging (drums, totes, ISO tanks) to match consumption and storage logistics.
4
Monitoring & Adjustment
Track KPIs—coupon rates, residuals, separator performance, water quality. Adjust chemistry and dosage as conditions change.
Recommended Chemistries (3)
Azodicarbonamide (ADC)
CAS 123-77-3
Dominant exothermic chemical foaming agent; decomposes near 200-215 C releasing nitrogen and CO/CO2 to gas-expand the polymer melt into closed-cell foam (source on demand)
Full Details
Sodium Bicarbonate (Baking Soda)
CAS 144-55-8
Acids & Salts
Conditioning
Endothermic foaming-agent base; decomposes to release CO2 and water for fine-cell nucleation, commonly paired with citric acid
Melting Point: Decomposes at 109 °C Density: 2.159 Solubility: 1 in 10 % at 25 °C
Full Details
p,p'-Oxybis(benzenesulfonyl hydrazide) (OBSH)
CAS 80-51-3
Lower-temperature (~150-160 C) exothermic blowing agent for heat-sensitive EVA and rubber foams (source on demand)
Full Details