1984 Exterior Plastic Parts

All 1984 Oldsmobiles have exterior parts made of various types of plastic materials that require specific procedures to obtain high quality refinishing results. Included in this bulletin is a chart listing the different exterior parts and the type of plastic materials used on 1984 models. For best results when painting is required, determine the type of plastic material from the chart; then follow the correct paint procedure, depending upon what painting material and equipment is available.

PART NAME PLASTIC TYPE SYMBOL

FIRENZA

Front Fasica Thermoset Urethane RRIM
Rear Fasica Thermoset Urethane RRIM

OMEGA MODELS

Lower Valance Panel, Front (1 pc.) Thermoplastic Urethane TPU
Front End Panel, (1 pc.) Thermosetting Polyester UP
Rear Bumper Fillers (5 pc.) Thermoplastic Urethane TPU
Lower Valance Panel, Rear Thermoplastic Urethane TPU
Front Bumper Fascia (W48) Thermoplastic Urethane RIM
Front End Panel Thermoset Urethane RRIM

CUTLASS CIERA - CUTLASS SUPREME

*Front Bumper Outer Fillers R & L (2 pcs.) Thermoplastic Elastomer TPE
*Front Bumper to Fender R & L (2 pcs.) Thermoplastic Elastomer TPE
Front End Panel (1 pc.) Thermosetting Polyester UP
*Rear Center Filler (1 pc.) Thermoplastic Elastomer TPE
*Rear Bumper Fillers Outers (2 pcs.) Thermoplastic Elastomer TPE
*Rear Body to Bumper Filler (2 pcs.) Thermoplastic Elastomer TPE
Front Fasica Thermoset Urethane RRIM
Rear Fasica Thermoset Urethane RRIM

*Cutlass Supreme Models Only

88 MODELS

Front Bumper to Fender R & L (2 pcs.) Thermoplastic Elastomer TPE
Front Bumper Filler, Outers (2 pcs.) Thermoplastic Elastomer TPE
Front End Panel (1 pc.) Thermosetting Polyester UP
Rear Bumper Fillers (2 pcs.) Thermoplastic Urethane TPU
Rear Center Bumper Filler (1 pc.) Thermoplastic Elastomer TPE
Rear Bumper Fillers (3 pcs.) (Wagon only) Thermoplastic Elastomer TPE

98 MODELS

Front Bumper to Fender R & L (2 pcs.) Thermoplastic Elastomer TPE
Front Bumper Filler, Outer (2 pcs.) Thermoplastic Elastomer TPE
Front End Panel (1 pc.) Thermosetting Polyester UP
Rear Bumper Fillers (2 pcs.) Thermoplastic Urethane TPU
Rear Center Bumper Filler Thermoplastic Elastomer TPE
TORONADO MODELS

Front Bumpers Filler, Center (1 pc.) Thermoplastic Elastomer TPE
Front Bumper Filler, Outers (2 pcs.) Thermoplastic Elastomer TPE
Rear Bumper Filler, Center (1 pc.) Thermoplastic Elastomer TPE
Rear Bumper Filler, Outers (2 pcs.) Thermoplastic Urethane TPU
Front End Panel (1 pc.) Thermosetting Polyester UP

1. GENERAL PAINT PROCEDURE FOR EXTERIOR FLEXIBLE PLASTICS

Polyvinylchloride (PVC), Polyurethane (PUR, TPUR, RRIM, RIM) Thermoplastic Elastomer (TPE), EPDM Rubber (Supplied In Prime).

There are a multitude of finishing systems available on the market for painting and/or repairing flexible plastic parts. Following is a general outline of painting procedures including a list of available products. Refer to the manufacturer's literature available through their jobbers for details on proper mixing and application.

A. Thoroughly clean part by washing with a suitable cleaning solvent* to remove all surface contaminates.

NOTE: Previously painted parts that show signs of cracking, peeling or improper adhesion must be stripped before repainting. The old finish may be removed with any commercially available chlorinated solvent stripper or lacquer thinner.

NOTICE: Do not soak parts longer than necessary to remove the old paint to avoid swelling.

B. Scuff sand to an even dull appearance the entire surface to be painted with fine (400 grit or less) sandpaper and feather edge any damaged areas and rewash as in Step A above.

NOTE: Unpainted parts do not require sanding prior to painting but should be thoroughly cleaned as in Step A above.

C. Apply two (2) thin coats of primer when required per top coat manufacturer's recommendation and allow to completely dry before proceeding (for most products, approximately 30 minutes)

D. Prepare color coat according to the manufacturer's recommendation and apply sufficient double coats to develop the proper shade. For best results allow a few minutes flash time between each double coat and allow to completely dry before using.

E. Following is a list of some of the products available for painting flexible plastic.

Ditzler Elastomeric Primer - DPX844 Ditzler Flexative - DX369 (Permanent Flexible Urethane Additive) Ditzler Flex Additive - DX1798 (Non-Urethane Additive) Ditzler Delthane - DXR80 (Acrylic Enamel Hardener) Rinshed-Mason Acrylic Flex Agent 891 DuPont Dexlar Flexible Finish (Lucite tints plus Dexlar 365B Additive) Sherwin-Williams Flex Additive - V2V297 Acme/Rogers Flex Additive - 699/4699 Martin-Senour Flex Additive - 3082
*Cleaning Solvents
1. DuPont Prep-Sol
2. Rinshed-Mason Pre-Kleano 900
3. Ditzler Acryli-Clean DX330
4. Sherwin-Williams R7K156
5. Acme 88; Rogers 088
6. Martin-Senour 6383

II. NYLON - will be supplied in prime. Use the same procedure to refinish as on sheet metal
parts.

III. ACRYLONNITRILE-BUTADIENE-STYRENE (ABS) - No prime required, paint with acrylic
lacquer.

IV. POLYESTER PARTS (UP, PBTP) - will be supplied in prime and/or black paint. Use the
same procedure to refinish or repair as on sheet metal parts.

V. POLYPROPYLENE - Interior parts.

A. Wash surface thoroughly with enamel reducer (do not use wax and grease removers)

B. Apply primer immediately and allow to dry completely before color coating.

C. Color coat with lacquer or enamel reduced and applied according to the manufacturers recommendation.

D. Materials

Cleaning Solvent - DuPont 3812S Enamel Reducer Ditzler DTE-101 or DTE-102 "Bobcat" enamel reducer Primer - DuPont 3293 GM 1052364