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Interior trim help

s/w theo

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Bucks co. Pa.
I am trying to repair a cracked trim piece that goes over the glove box of a friends 70 Road Runner. It's plastic but, I'd like to know what the best way is to fix this cracked piece. A certain type of glue? Epoxy? I don't want to have to replace this piece if I don't have to. I know, the bird doesn't belong there, I am removing it when I paint it. Any help would be appreciated. TIA

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I had a similar problem with my gauge bezel. Used Guerilla gel glue and worked well. Also glue an extra piece on the back if you can to give strength (fabric or another piece of plastic).
 
You need to grind some groves perpendicular to the crack on the back side, get the front side lined up nice and clean and then add some metal pin (paperclips) all embedded in Permatex plastic mender or JB Weld for plastic.
 
Glue designed for plastic (most glued won’t stick to plastic) and glue the back. I like the ide of metal reinforcement or possible glass woven roving on the back…..not too thick though so it bolts up flat
 
I used super glue to hold piece together, then JB weld over drywall mesh on back. Once repainted, crack is very hard to see.

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