LESTAC-DCPD100 is  Dicyclopentadiene resin or DCPD resin,  the dimer of cyclopentadiene (CPD) formed by a Diels-Alder addition reaction. DCPD petroleum resins are pale yellow thermoplastic resin obtained from mainly polymerizing unsaturated dicyclopentadiene derived from C5 fraction, by- products of petroleum cracking, through pretreatment, thermal polymerization and distillation ......