Blowing agent can be used in oil field, concrete, rubber, plastic, ... bubbles by the single bubble foam. The essence of foaming agent is its surface activity. No surfactant effect, we can ... long life period of liquid level, low surface tension, high-temperature resistance and good compatibility with formation water, so it has ... with good performance. 3. Packing:1. Packing in 200kg/drum. Blowing Agent