In the modern polymer and rubber industry, foaming technology plays a key role in lightweight design, thermal insulation, flexibility, and cost reduction. Two major technologies dominate the market: SCF (Supercritical Fluid) physical foaming and AC blowing agent (Azodicarbonamide) chemical foaming.
As a professional AC blowing agent manufacturer in China, Jiangxi Yubo frequently receives inquiries from customers comparing these two solutions. This article explains the differences to help manufacturers choose the most suitable foaming method.
SCF foaming uses supercritical CO₂ or N₂ injected into molten polymers under high pressure. When pressure drops, the dissolved gas expands and forms a microcellular structure.
AC blowing agent (Azodicarbonamide) is a thermally decomposable chemical blowing agent. When heated to its decomposition temperature (typically 170–210°C depending on grade), it releases gases such as nitrogen (N₂), CO, and CO₂, creating a uniform foam structure.
As a widely used chemical blowing agent for EVA, rubber, PE, PVC, and TPR, AC foaming agent offers stable gas yield and excellent processing adaptability.
For most EVA foam sheet manufacturers, shoe sole factories, and rubber product producers, using an AC chemical blowing agent is more economical and production-friendly.

Due to its versatility and cost-efficiency, AC blowing agent remains the mainstream choice in the footwear and rubber foam industry.
| Item | SCF Physical Foaming | AC Chemical Blowing Agent |
|---|---|---|
| Foaming Type | Physical gas expansion | Thermal decomposition |
| Equipment Cost | Very High | Low |
| Processing Flexibility | Limited | Very Flexible |
| Production Efficiency | Moderate | High |
| Suitable for EVA/Rubber | Limited | Excellent |
| Cost Performance | Medium | High |
Although SCF technology offers microcellular precision, most manufacturers prioritize:
As a professional azodicarbonamide supplier and chemical blowing agent factory, Jiangxi Yubo provides customized AC blowing agent grades for EVA, rubber, and PVC applications, ensuring consistent quality and reliable supply.
Founded in 2006, Jiangxi Yubo is a leading AC blowing agent manufacturer with an annual production capacity of 30,000 tons. With nearly 20 years of experience in chemical blowing agents, we supply customers worldwide in the footwear, rubber, and plastic industries.
If you are looking for a reliable azodicarbonamide supplier or want to get the latest AC blowing agent price, feel free to contact us for technical consultation and quotation.
Choosing the right foaming technology can significantly impact your product quality, production efficiency, and bottom line. With AC blowing agent's proven track record in EVA and rubber applications, you can achieve consistent, high-quality foam products without massive capital investment.
Our technical team is ready to analyze your specific needs and recommend the optimal AC blowing agent grade for your application.
Test our premium AC blowing agents in your production process and experience the quality difference firsthand.
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