Profile: Shandong Qilong Chemical Co., Ltd. specializes in the refining of petrochemicals. We are certified with ISO 9001 quality certification. Our main products are C9 petroleum resin, C5/C9 copolymerization petroleum resin, methyl cyclopentadiene dimmer, and dicyclopentadiene. Our QILONGr R-series hydrocarbon resin is a low molecular weight thermoplastic aromatic resin produced from petroleum. It is derived from C9 fraction through thermal-polymerization technique. It is a transparent flake, solid, with a yellow to light brown color. It has the properties of good solubility, mutual solubility, water resistance, insulation, chemical stability over acid & alkali, good adhesive strength, and low heat conduction.