Blowing agent can be used in oil field, concrete, rubber, plastic,fly ash, etc 1. Brief Product Introduction:Foaming ... can prevent the formation contaminant. The product is mainly used for foam oil mining of tertiary oil recovery and foam sand ... , acidizing fluid, etc.2. The product can also be used for concrete, with good performance. 3. Packing:1. Packing in 200kg/drum ...