Synthetic resin is a kind of artificially synthesized polymer compound, which is a kind of resin that has or exceeds the inherent characteristics of natural resin. ASTM D883-65T defines synthetic resins as organic substances of unspecified molecular weight but often high molecular weight solids, semisolids, or pseudosolids that have a tendency to flow when stressed, often have a softening or melting range, and are scalloped when ruptured .
