Exterior body panels are constructed of various
materials, due to the increased dent and corrosion
resistance of modern composites. All vertical panels,
such as fenders, doors, quarters, and rocker
panels, are made from rigid thermoplastic. Front and
rear fascias are constructed of thermoplastic
olefin (TPO). The hood, roof, and deck are steel.
Different materials require different procedures
for preparing and refinishing. Before beginning any
repair, identify the type of material involved.
Panel Identification
Identifying Symbol
Chemical Composition or
Plastic “Family” Name
Typical Area where Used Common or Trade Names
PE Polyethylene
Inner Fender Panels,
Valances, Spoilers, Inner
Trim Panels, Seatbelt
Covers, Gas Tank Shields
Dylan, Fortiflex, Marlex,
Alathon, Hi-Fax,
Hosalen, Paxon
PP Polypropylene
Kick Panels, Deflector
Panels, Cowl Panels, Interior
Moldings, Radiator Shrouds,
Inner Fenders, Bumper
Covers
Profax, Oleflo, Marlex, Azdel,
Novolen, Tenite, Daplen,
Escorene
ABS Acrylonitrite/Butadine/Styrene
Instrument Clusters, Trim
Moldings, Consoles, Armrest
Supports, Steering Column
Jackets
ABS, Cycolac, Abson,
Kralastic, Lustran,
Absafil, Dyel
ABS+PC
Acrylonitrite/Butadine-Styrene
+ Polycarbonate
Instrument Panels, Exterior
Door Panels, Rocker Panel
Covers
Babyland, Proloy,
Cycoloy, KHA
E/P/TPO
Ethylene/Polypropylene
(Rubber)
Bumper Covers
TPO, TPR (Thermoplastic
Rubber) EPI, EPII
PA + PPE
Polyamide +
Polyphenylene Ether
Fenders GTX
2003 Saturn Ion
3-3
2003 Saturn Ion