Duraliner is a brand name FLSI employs for materials that have been particularly designed to outperform their standard equivalents. Most frequently, we name our PVC resin mix Duraliner to differentiate it from others. It is a resin with enhanced properties in all aspects, including temperature resistance and exceptional chemical resistance. Furthermore, since it has a greater hardness than ordinary PVC, it is an excellent form fitting material with a higher puncture resistance than standard PVC.