Chevrolet Silverado / GMC Sierra. Service manual — part 2687

2008 ACCESSORIES & EQUIPMENT

Plastic Panel Information and Repair - Cab & Chassis Sierra, Cab & Chassis Silverado, Sierra

& Silverado

SPECIFICATIONS

FLEXIBLE PLASTIC PART REPAIR MATERIALS

Product - 88861039, *88861040, High Strength Plastic Repair 50 ml

Components - 12 cartridges with 2 mixers each

Structural and Cosmetic

Recommended Repair Material

Working Time

RIGID PLASTIC PART REPAIR MATERIALS

Product

Components

Recommended

Repair Material

Work Time 70°F

Handling Strength

at 70°F

88861039

*88861040

High

Strength Plastic

Repair 50 ml

12 cartridges with 2

mixers each

Structural and

cosmetic bonding

and repairing of all

flexible plastics.

Requires GM P/N

12378462 on TPO

plastics. Will also

bond e-

coated/primed

metals.

90 seconds

10 minutes

* TPO, TEO, (Polyolefin Plastics) require the application of polyolefin adhesive primer before the GM
P/N 88861039 repair compound is applied.

Product

Adhesive

Sandability at 70°F

Part Paintability at

70°F

Adhesive Full

Cure at 70°F

Program

88861039

*88861040

High

Strength Plastic

Repair 50 ml

20 minutes

30 minutes

24 hours

Bumper covers,

emblems, door

trims, exterior and

interior repairs*

* TPO, TEO, (Polyolefin Plastics) require the application of polyolefin adhesive primer before the GM
P/N 88861039 repair compound is applied.

Recommended Repair

2008 Chevrolet Silverado 1500

2008 ACCESSORIES & EQUIPMENT Plastic Panel Information and Repair - Cab & Chassis Sierra, Cab & Chassis

Silverado, Sierra & Silverado

2008 Chevrolet Silverado 1500

2008 ACCESSORIES & EQUIPMENT Plastic Panel Information and Repair - Cab & Chassis Sierra, Cab & Chassis

Silverado, Sierra & Silverado

Thermoset Plastic Type

Type of Repair

Material

Availability

Sheet metal compound

(SMC), RIM rigid plastic

parts

Cosmetic filling

GM Goodwrench®

Structural Bonding Epoxy

(GM P/N 12345726 or

equivalent)

GM Dealer/Retailer

Sikkens Polystop LP™ or

equivalent polyester

repair putty

Refer to a local paint

supplier

Most rigid plastic parts

Cosmetic repair,

adhesive bonding

GM Goodwrench®

Structural Bonding Epoxy

(GM P/N 12345726 or

equivalent)

GM Dealer/Retailer

Lord Fusor® SMC Body

Panel Repair Adhesive or

equivalent

Refer to local paint

supplier

Most rigid plastic parts

Adhesive bonding

GM Goodwrench®

Structural Bonding Epoxy

(GM P/N 12345726 or

equivalent)

GM Dealer/Retailer

Dynatron Dyna-Weld Plio

Grip® or equivalent (OE

structural adhesive)

Refer to local paint

supplier

Most rigid plastic parts

Adhesive structural*

bonding

GM Goodwrench®

Structural Bonding Epoxy

(GM P/N 12345726 or

equivalent)

GM Dealer/Retailer

Most rigid plastic parts

Adhesive bonding

Structural bonding

Ashland Pliogrip®

7773B-3-minute

Ashland Pliogrip®

7779B-10-minute

Ashland Pliogrip®

7770B-35-minute

Supplied by Crest

Industries

1-800-822-4100

fax 1-800-344-4461

SRIM most rigid plastic

parts

Cosmetic repair,

adhesive bonding

GM Goodwrench®

SRIM™ repair kit (GM

P/N 12378523) or

SIA™ Adhesives, INC.

SRIM™ repair kit P/N

30208030001 adhesive

200ML TUBES P/N
30208020001 50ML

TUBES P/N

30208010001

SIA Adhesives, INC.

customer service 1-330-

374-2468

* 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.

Kent-Moore 1-800-GM-

TOOLS

2008 Chevrolet Silverado 1500

2008 ACCESSORIES & EQUIPMENT Plastic Panel Information and Repair - Cab & Chassis Sierra, Cab & Chassis

Silverado, Sierra & Silverado

REPAIR INSTRUCTIONS

GENERAL PLASTIC REPAIR

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 a wax and grease remover, using only enough of the 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.

DESCRIPTION AND OPERATION

HOW TO IDENTIFY PLASTIC PARTS

CAUTION: 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



Eye protection



Rubber gloves



Earplugs



Protective clothing

2008 Chevrolet Silverado 1500

2008 ACCESSORIES & EQUIPMENT Plastic Panel Information and Repair - Cab & Chassis Sierra, Cab & Chassis

Silverado, Sierra & Silverado

Fig. 1: Identifying SAE Code
Courtesy of GENERAL MOTORS CORP.

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.

2008 Chevrolet Silverado 1500

2008 ACCESSORIES & EQUIPMENT Plastic Panel Information and Repair - Cab & Chassis Sierra, Cab & Chassis

Silverado, Sierra & Silverado