Petroleum resin is primarily used in the coating industries,such as the petroleum resin emulsion is applied as strengthened and synthesized coating paint,tint petroleum resin is applied to improve luster and adhesion forcein producing oil varnish.The resin with low soften point is used as plasticizer of rubber,and the one with high soften polint is used to improve the hardness of rubber,also used as the melting coat of paper to product corrugated paper.The resin is mixed with paraffin chloride and surface activator into construction coating,also widely applied in printing

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