Blowing Agent

Choose AC3000-75 for high-temperature molding

With a decomposition temperature of 200°C or above, AC3000-75 suits both atmospheric and pressure foaming processes that run hot. It's non-staining, non-corrosive to molds, and delivers a uniform cell structure with a smooth surface — a strong fit for sports equipment, insulation, and shoe materials.

Choose OBSH-75 for lower-temperature, sensitive compounds

OBSH-75 begins foaming at just 150°C, well below AC3000-75, making it the choice when your compound can't tolerate high-temperature processing. It also brings good electrical insulation properties and a fine, uniform cell structure, and is commonly used in microcellular rubber sole production.

1. How do I know which decomposition temperature I need?

Match the blowing agent's decomposition temperature to your actual cure or molding temperature — if your process runs at or above 200°C, AC3000-75 is the fit; if your compound needs to foam at a lower temperature, around 150–164°C, OBSH-75 is the better choice.

2. Can AC3000-75 and OBSH-75 be used together?

Yes — OBSH-75 is designed to be uniformly dispersible in rubber and can be used alongside other foaming agents, which allows compounders to fine-tune the foaming profile across a broader temperature window than either agent alone.

3. Does either blowing agent affect the color of the finished product?

AC3000-75 is specifically non-staining to the finished product despite its own orange particle color. Both agents are formulated to decompose without leaving discoloring residue in the cured compound.

4. What gas is released during decomposition?

Both agents release nitrogen gas as they decompose, which forms the cellular structure inside the rubber compound during vulcanization.