this proceedings volume contains 27 papers divided into sessions covering uv degradation and stabilization of polymers; oxidative degradation and stabilization; stabilization of pvc; flame retardance and smoke suppression; and plasticizers, fillers, and additives. topics of papers include polydienes, photodegradation, photostabilization, polyethylene, hindered amines, polyurethanes, biological defacement, instant color photographs, grafting, acrylated azodyes, critical phenomena, solubility, phenolic antioxidants, oxygen uptake, phosphorus stabilizers, thermooxidation, block copolymers, tin stabilizers, polyvinyl chloride, mercapto esters, bromine, antimony compounds, molybdenum compounds, lewis acid theory, diffusion, coatings, polyphenyl quinoxalines, pigments, aging, titanates, coupling agents, lubricants, extrusion, calcium carbonates, impact modifiers, bitumen, adhesion, and iron compounds technical and professional papers from this conference are indexed and abstracted with the conference code no. 06776 in the ei engineering meetings (tm) database produced by engineering information, inc