H blowing agent£¨dpt blowing agent, dpt, dnpt£ © is mainly used for rubber products and pvc plastic products as the vesicant.\n\nin the rubber, it is 3-5% in quantity and 5-15% in the plastics. \n\nit is a kind of light yellow powder with no odor, but there is formaldehyde flavor when it is moist. this product is inflammable and it can be inflammable in contact with acid or acid fog.