Recommended Repair Material
| Product | Components | Recommended Repair Material | Work Time 70°F | Handling Strength at 70°F |
|---|
| (1) ADHESIVES, FLUIDS, LUBRICANTS, AND SEALERS High Strength Plastic Repair 50 ml | 12 cartridges with 2 mixers each | Structural and cosmetic bonding and repairing of all flexible plastics. Requires ADHESIVES, FLUIDS, LUBRICANTS, AND SEALERS on TPO plastics. Will also bond e-coated/primed metals. | 90 seconds | 10 minutes |
| (1) TPO, TEO, (Polyolefin Plastics) require the application of polyolefin adhesive primer before the ADHESIVES, FLUIDS, LUBRICANTS, AND SEALERS repair compound is applied. |
| (1) | TPO, TEO, (Polyolefin Plastics) require the application of polyolefin adhesive primer before the ADHESIVES, FLUIDS, LUBRICANTS, AND SEALERS repair compound is applied. |
Working Time
| Product | Adhesive Sandability at 70°F | Part Paintability at 70°F | Adhesive Full Cure at 70°F | Program |
|---|
| ADHESIVES, FLUIDS, LUBRICANTS, AND SEALERS (1) High Strength Plastic Repair 50 ml | 20 minutes | 30 minutes | 24 hours | Bumper covers, emblems, door trims, exterior and interior repairs (1) |
| (1) TPO, TEO, (Polyolefin Plastics) require the application of polyolefin adhesive primer before the ADHESIVES, FLUIDS, LUBRICANTS, AND SEALERS repair compound is applied. |
| (1) | TPO, TEO, (Polyolefin Plastics) require the application of polyolefin adhesive primer before the ADHESIVES, FLUIDS, LUBRICANTS, AND SEALERS repair compound is applied. |
Rigid Plastic Part Repair Materials
| Thermoset Plastic Type | Type of Repair | Recommended Repair Material |
|---|
| Sheet metal compound (SMC), RIM rigid plastic parts | Cosmetic filling | GM Goodwrench® Structural Bonding Epoxy ( ADHESIVES, FLUIDS, LUBRICANTS, AND SEALERS or equivalent) |
| Sikkens Polystop LP™ or equivalent polyester repair putty |
| Most rigid plastic parts | Cosmetic repair, adhesive bonding | GM Goodwrench® Structural Bonding Epoxy ( ADHESIVES, FLUIDS, LUBRICANTS, AND SEALERS or equivalent) |
| Lord Fusor® SMC Body Panel Repair Adhesive or equivalent |
| Most rigid plastic parts | Adhesive bonding | GM Goodwrench® Structural Bonding Epoxy ( ADHESIVES, FLUIDS, LUBRICANTS, AND SEALERS or equivalent) |
| Dynatron Dyna-Weld Plio Grip® or equivalent (OE structural adhesive) |
| Most rigid plastic parts | Adhesive structural (1) bonding | GM Goodwrench® Structural Bonding Epoxy ( ADHESIVES, FLUIDS, LUBRICANTS, AND SEALERS or equivalent) |
| Most rigid plastic parts | Adhesive bonding Structural bonding | Ashland Pliogrip® ADHESIVES, FLUIDS, LUBRICANTS, AND SEALERS |
| SRIM most rigid plastic parts | Cosmetic repair, adhesive bonding | GM Goodwrench® SRIM™ repair kit ADHESIVES, FLUIDS, LUBRICANTS, AND SEALERS or SIA™ Adhesives, INC. SRIM™ repair kit ADHESIVES, FLUIDS, LUBRICANTS, AND SEALERS |
| (1) Structural adhesive bonding may require the use of a pneumatic applicator, A8-37479-1A, or equivalent, to speed the application of the GM P/N 12345726 epoxy. |
| (1) | Structural adhesive bonding may require the use of a pneumatic applicator, A8-37479-1A, or equivalent, to speed the application of the GM P/N 12345726 epoxy. |
Scheme 14
Scheme 14: How to Identify Plastic Parts
Plastic parts can be identified by the SAE code, which is usually found on the rear of the part, and/or by the characteristics of the plastic. Knowing the type of plastic aids in selecting the proper repair materials and in selecting the proper repair procedure.
Look for the SAE code stamped into the part.
Code Found
Match the code to those in the plastic identification chart to determine whether the plastic is thermoplastic or thermoset plastic, and whether the plastic is rigid or flexible. Refer to PLASTIC IDENTIFICATION AND REFINISHING SYSTEMS (EXAMPLES OF DESIGNATION ABBREVIATIONS) .
No Code Found
| WARNING | Do NOT use a plastic burn test to distinguish the type of plastic. The burn test produces vapors which are harmful. |
Perform one or both of the following tests to determine if the part is thermoplastic polyolefin or thermoset non-polyolefin.
General Plastic Repair
| WARNING | In order to reduce the risk of personal injury when exposed to toxic fumes while grinding, cutting, or applying repair material on any type of sheet molded compound or RIM rigid plastic, observe the following guidelines: Work in a properly ventilated area Apply protective cream to any exposed skin Remove any mixture that comes into contact with skin Wash skin with cold water to remove glass and resin dust Use a sander with a vacuum attachment Follow the repair material manufacturer's instructions Also, always wear the following: An approved respirator, or air supplied respirator Safety Glasses Rubber gloves Earplugs Protective clothing |
The following procedures should be followed when repairing all types of thermoset plastic
- Follow the manufacturer's application and curing recommendations.
- Do not intermix systems. Use the supplies and the repair materials from the same manufacturer.
- Clean the inner and outer surfaces of the repair area with a soap impregnated scouring pad in order to remove any dirt or mold release agent.
- Clean the area with wax and grease remover. Only use enough remover to dampen a cloth. Allow the panel to dry thoroughly.
- Remove the surface finish from the area to be repaired. Adhesives are designed to adhere to the plastic substrate, not the finish.
- Prime a metal surface before applying the repair material.
- Inspect the rear side of the work area before making repairs in order to avoid possible damage to wires, motors, etc.
