grille question?

Discussion in 'Chassis restoration' started by Kenny462, Jun 12, 2018.

  1. Kenny462

    Kenny462 Gold Level Contributor

    1972 gs grille========what chemical dissolves this plastic? make my own glue thanks, Kenny.
  2. Daves69

    Daves69 Too many cars too work on

    MEK Methyl Ethyl Ketone is the solvent in ABS cement. The plastic grilles are made from ABS plastic.
  3. AZ Tom

    AZ Tom Member

    lIf you really want to fix it , MEK really never had any luck with a permanent fix.
    I use SEM Dual Mix Multi-Purpose Panel Adhesive # 39747 . Yes it needs a special
    gun to use it, you won't be disappointed as it is the BEST repair. JB Weld isn't the same.
    Wal Mart has it the cheapest but must order it.
  4. 87GN_70GS

    87GN_70GS Well-Known Member

  5. AZ Tom

    AZ Tom Member

    Not doubting other repairs , SEM 39747 repairs hard plastics as SMC panels on Corvettes
    and fiberglass and be purchased thur Wal Mart just under $40 and won't get brittle or crack
    later on . Its awesome !!!
  6. buick64203

    buick64203 Just plum crazy Staff Member

    Break up bits of scrap plastic and put it in a small paint bottle with some acetone. The acetone will melt the plastic. Get it to the consistency of milk or a little thicker. If the break is super clean, you can just brush on the acetone to both sides of the break. The acetone will melt both sides and fuse it together. If not, use the plastic and acetone mix. It will fill in any open areas of the break. I make a bead of it on the backside of the break to reinforce it. Once the acetone solvents out, the repair is as strong as the surrounding plastic. If you have stripped plastic threads, apply the acetone and plastic "glue" to the threads. Once dry, run a tap through the boss- new threads.
    87GN_70GS likes this.

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