How To Repair A Plastic Tractor Hood

slowkansasboy

Posted 7/25/2018 17:25 (#6892357)
Subject: Adhesive to fix cracked plastic hood

I have a John Deere 7130 tractor,and the hood has cracked back where it mounts near the hinges at the rear. JB weld didn't work what type of glue would work best? And I am not buying a new hood yet.
Tia
Jason_WI

Posted 7/25/2018 17:49 (#6892390 - in reply to #6892357)
Subject: RE: Adhesive to fix cracked plastic hood

NE WI

Probably need to have it plastic welded. Most adhesives don't stick well to plastic.

https://www.harborfreight.com/plastic-welding-kit-with-air-motor-and...

deereboy8400

Posted 7/25/2018 17:59 (#6892399 - in reply to #6892357)
Subject: RE: Adhesive to fix cracked plastic hood

East Central Indiana

After welding or gluing, build it up with fiberglass. Birddy

Posted 7/25/2018 18:00 (#6892401 - in reply to #6892399)
Subject: RE: Adhesive to fix cracked plastic hood

deereboy8400 - 7/25/2018 17:59 After welding or gluing, build it up with fiberglass.

Not sure about that, it will not stick.

bollpuller

Posted 7/25/2018 19:16 (#6892533 - in reply to #6892357)
Subject: RE: Adhesive to fix cracked plastic hood

Grandfield, Ok.

On the plastic truck hoods I have found smc resin will bond to the plastic. My thoughts are to use the smc resin with the recommended harder and fiber glass mat will usually hold. Bounce moma Deere for the correct stuff. Freightliner has some body hood glue which might work. When you find the right stiff report back as lots of broken green hoods around.

Edited by bollpuller 7/25/2018 19:17

reedfarmer

Posted 7/25/2018 21:53 (#6892935 - in reply to #6892357)
Subject: RE: Adhesive to fix cracked plastic hood

Eastern Arkansas

Grind out the crack, then rivet a piece of steel behind the crack that is around 2 inches bigger than the crack on all sides. Then fill with a body filler with fiberglass resin in it. That is what I have done on my 8420hoods and it seems to work well. gearhead9056

Posted 7/25/2018 22:38 (#6893039 - in reply to #6892357)
Subject: RE: Adhesive to fix cracked plastic hood

SESD

Auto body supply store will have an epoxy for repairing plastic bumpers, it etches itself into the plastic so it stick permenant and flexes with the plastic.

http://www.toolpan.com/3M-Automotive-4240--3M-Duramix-Plastic-Repai...

berggrenfarms

Posted 7/26/2018 08:25 (#6893516 - in reply to #6892357)
Subject: RE: Adhesive to fix cracked plastic hood

Nebraska, The land of corn and cattle

I recently bought a hot stapler and plastic welder to fix this kind of stuff, I highly reccomend both, the stapler makes a mechanical connection and the plastic welder just doubles it.