Valvoline Pliogrip Panel 60

Valvoline Pliogrip Panel 60

The body repair manual specifies:

— INSTALL OR CONNECT —

Important: Use US Chemical and Plastics
821014B System 2000 Structural Adhesive, a
PLIOGRIP® adhesive manufactured by Ashland
Chemical Company, or equivalent. Note the 9
minute working time and 1 hour cure time.

Notice: DO NOT adjust the fender by
compromising the wheelhouse to rail gap. This
gap must remain a nominal width to maintain
the correct adhesive strength. The gap should
be correct if the rails are properly located.
Notice: If possible, when prepping area for
service part leave small portions of original
adhesive in various places to act as shimming
for wheelhouse spacing from frame rails. If
original adhesive is not usable for shimming,
use paint stir sticks, or equivalent, and shim
according to body dimensions and body panel
alignment.

1 Remove all remaining adhesive, and scuff all
bonding surfaces to ensure proper adhesion.
(Refer to SMC Repair Procedures.)

2 Clean and prepare all bonding surfaces as
necessary. (Refer to SMC Repair Procedures.)
Important: Prior to refinishing, refer to
GM P/N 4901 Refinish Manual for
recommended products.

3 Apply approved anti-corrosion primer.
Notice: DO NOT top-coat any bonding
surface.

4 Temporarily attach the fender to the
wheelhouse. Align the fender to door and
hood by clamping the wheelhouse assembly
into place. Scribe line on rail to locate
wheelhouse.

5 Apply adhesive to the wheelhouse as shown
in Fig.Ê3.11. Position front wheelhouse
service part according to the scribe lines on
the rail. Install the four bracket bolts which
attach the wheelhouse to the front hinge
pillar, and clamp the wheelhouse to the rail.
Install headlamp mounting bracket. Trowel
around perimeter of bonding area to remove
excess adhesive and restore original
appearance.

6 Install all related panels and components.

Some Guidelines for SMC Repair

• Clean scuff and solvent wipe all areas to be
repaired.
• For added strength and durability, V-groove
and reinforce on at least one side of an SMC
joint using a tacky mesh tape or equivalent.
• When partial panel replacement is
performed, use two inch backing plates
made from SMC or E-coated steel, as a
reinforcement for all butt joints

Repairing Sheet Molded
Compound Panels

1 Scuff area where repair is to be performed.

2 Clean bond area with lint-free rag using a
water-based cleaner.

3 Cracks should be grooved and reinforced on
at least one side of an SMC joint using a
tacky mesh tape or equivalent.

4 Sectioning joints require backing strips 50mm
(2 inch) wide, cut strips from leftover pieces
of SMC.

5 Use US Chemical and Plastics System 2000
Structural Adhesive or equivalent (the US
Chemicals customer service number is
1-800-321-0672). Apply ahesive to the entire
‘joint’ area extending across the cut lines and
across the backer. Use tacky mesh tape or an
equivalent reinforcement matting. Allow to
cure according to adhesive manufacturer’s
recommendations.

6 Apply a thin coat of Goodwrench Structural
Bonding Epoxy (P/N 12345726) or equivalent
as a final coat to blend in the repair to
resemble OEM appearance.

SMC Repair Procedures
Bonding Undamaged SMC to
Epoxy Coated Steel

1 Prime all bare metal areas with an
anti-corrosion primer such as PPG’s DP90, or
equivalent. Some paint manufacturers
recommend a pre-primer when bonding to
epoxy. Always refer to paint manufacturer’s
recommendations. Do not combine paint
systems.

2 Clean bond area with a lint-free rag using a
water-based cleaner.

3 Scuff both surfaces to be bonded using a
scuff pad such as 3M’s Scotch-Brite “Red”
scuff pad P/N 07447 or equivalent.

4 Ensure that the surface is clean and dry before
applying adhesive. Use compressed air. Do
not final wipe surface with hand or rag.

5 Determine whether adhesive is applied to the
vehicle or the replacement panel. Refer to
specific procedure of part being replaced.

6 Apply a consistent adhesive bond to
prepared surfaces.

7 Mechanically retain panel in place to “wet
out” adhesive along entire bonding surface.

8 Allow to cure according to adhesive
manufacturer’s recommendations.