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3M Plastic Repair System – Back Side/Front Side Repair.

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Presentation on theme: "3M Plastic Repair System – Back Side/Front Side Repair."— Presentation transcript:

1 3M Plastic Repair System – Back Side/Front Side Repair

2 Backside/Front Side Repair Any time you are dealing with a cosmetic or structural repair on plastic bumper covers regardless of tears, rips or puctures, use the following 3M procedures..

3 Cleaning Step 1.Use soapy water and Scotch-Brite Hand Pad P.N to clean dirt & road film on the front side, then the backside. 2.Use 3M General Purpose Adhesive Cleaner P.N to remove solvent- based grime, asphalt, etc. from the backside. 3.Adhesive cleaner helps to evaporate the water from the repair area.

4 Heating The Bumper Contour lines often do not match. Heat the bumper to re-align the pieces. Use the contour lines as a guide. Quench with paper towel soaked with cold water.

5 V-Grind To Open Up The Crack 1.Use countersink die grinder bit to accomplish V- grind on front side then back side. 2.Note: if you drill a hole at the end of the crack to stop spreading, remember to dish it out. 3.Rough up repair area with grade 50 3M Roloc Disc P.N on backside.

6 Taping the Front Side Use Scotch® Auto Body Repair Tape P.N Keeps panels from moving. Keep tape a little loose. Press down on the edges. Keeps adhesive from oozing all over. Allows for more effective cure of adhesive from the backside.

7 Move To The Backside Rough up the repair area with grade 80 3M(TM) Imperial(TM) Hookit(TM) II Disc Apply 3M Polyolefin Adhesion Promoter P.N or 2 passes. Wait 5 minutes to flash. Use Duramix Plastic Repair Semi-Rigid P.N Use Duramix Reinforcement Patch P.N

8 Equalizing The Cartridge Do not remove metal clip. Unscrew cap. Insert cartridge into MixPac® Applicator Eject material so that both A & B are mixing equally. Wipe clean. Attach static mix nozzle. Replace retaining nut. Discard first pump.

9 Spreading the adhesive Pre-cut the reinforcement patch before you spread the adhesive. Apply tight coat of adhesive to repair area. Press reinforcement patch into adhesive. Spread additional adhesive into patch.

10 Insurance strip Cut a piece of the reinforcement patch and place it on the edge of the repair. Adds additional reinforcement along the edge of the bumper.

11 Cosmetic Repair Remove tape You can see the back side tied to the front side.

12 Sand Front Side Area 1.Sand area with grade 80 3M Imperial Hookit II Disc P.N Sand down the squeeze out. 3.Remove grade 80 scratches with grade 180 3M Imperial Hookit II Disc P.N Blow off the repair area. 5.Use Adhesion promoter, let sit for 5 minutes,

13 Equalizing The Cartridge Do not remove metal clip. Unscrew cap. Insert cartridge into MixPac® Applicator Eject material so that both A & B are mixing equally. Wipe clean. Attach static mix nozzel. Replace retaining nut. Discard first pump.

14 Using 3M Automix EZ Sand Flexible Parts Repair P.N Apply tight coat by forcing the adhesive into the repair area. Continue building up the adhesive just slightly higher than the bumper. Spread from paint to paint

15 Checking To See If The Material Has Cured Wait 15 minutes Nick in middle of repair with your fingernail to see a white mark – Then you know the adhesive has cured properly.

16 Sanding 3M Automix EZ Sand Flexible Parts Repair P.N Sand filler material with grade 80 3M Imperial Hookit II Disc P.N Remove grade 80 scratches with grade 180 3M Imperial Hookit II Disc P.N Feather well into the clear with grade 320 3M Imperial Hookit II Disc P.N

17 Finishing The Job Blow repair area clean. Apply 3M Polyolefin Adhesion Promoter P.N Ready for priming & painting.


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