Plastic Components
The following illustration(s) are not all-inclusive of trim levels available. The actual trim level of the vehicle will determine the viability of carrying out a plastics repair. Typically components with moulded-in color or a textured finish are not considered repairable components.
Front Exterior Plastics
Item | Description | Material |
1 | Front upper bumper cover | TPO (Thermoplastic olefin) |
2 | Front lower bumper cover | TPO |
3 | Front valance panel | TPO |
4 | Active cruise control sensor cover | TPO |
5 | Front tow hook cover | TPO |
Side Exterior Plastics
Item | Description | Material |
1 | Front wheelhouse opening moulding | TPO (Thermoplastic olefin) |
2 | Front door moulding | TPO |
3 | Rear door moulding | TPO |
4 | Rocker panel moulding | TPO |
5 | Rear wheelhouse opening moulding | TPO |
Rear Exterior Plastics
Item | Description | Material |
1 | Rear bumper cover | TPO (Thermoplastic olefin) |
2 | Rear spoiler strake | TPO |
3 | Rear spoiler | TPO |
4 | Rear bumper valance cover | TPO |
Repair Considerations
Several considerations will determine viability of plastic repair procedure(s):
Several types of plastic are in use for automotive application. However, all plastics will fall into 2 primary categories of thermoplastic or thermosetting plastic.
Thermosetting Plastic
Generally, thermosetting plastics are made with 2-part thermosetting resins. When mixed together, heat is generated, producing a cure that is irreversible. Because of this, thermosetting plastics will require the use of a 2-part adhesive for repair.
SMC (Sheet-Molded Composite):
Thermoplastic Compounds
Thermoplastic compounds are manufactured by a process that is reversible. Thermoplastics can be remolded repeatedly by reheating. This characteristic of thermoplastics makes plastic welding a possible repair alternative. A repair of thermoplastic compounds is still possible through the use of a 2-part adhesive and filler repair materials and reinforcements as needed. Thermoplastics are widely used in interior trim components, wheel flares, body side cladding and bumper covers.
Polyolefin
Polyolefins fall into the family of thermoplastics with one unique characteristic: an oily or waxy feel to the material when sanded or ground. Polyolefin lends itself very well to remolding through the use of heat. Because of this, components made of this material lend themselves well to the possibility of plastic welding. Most adhesive repair materials and paint will not bond to the surface of a polyolefin unless an adhesion promoter specially formulated for plastic is first applied to the exposed raw surface. Otherwise, polyolefins are repaired like most other thermoplastics. Polyolefins are used in bumper covers, fan shrouds and wheel housings.
Proper
identification of the various types of plastic is necessary to select
the appropriate repair method(s) to carry out high quality plastic
repairs. For additional information, refer to:
For additional information, refer to: Plastic Repairs (501-25 Body Repairs - General Information, General Procedures).
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When you use them properly, the seat, head restraint, seatbelt and airbags will provide optimum protection in the event of a crash.