OBSH Blowing agent 1.Appearance:Finer white powder 2.Gas evolution20,760mmHg :125ml/ ... .As the widely usage,it was called the omnipotent blowing agent.In addition,relying on its good insulation,it is usually ... certain circumstance,it can be used as blowing agent,but also be a cross linker,and can be mixed together with other ... fire equipments,for fear dally over the time. OBSH Blowing agent