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Customs Getting upholstery trim to stick???

Discussion in 'The Hokey Ass Message Board' started by udtoy, Oct 4, 2021.

  1. udtoy
    Joined: Aug 3, 2016
    Posts: 5

    udtoy

    I am trying to attach a strip of 1/4 inch aluminum half round bar stock as a decorative trim piece to my vinyl door panels. I initially used Weldwood HHR adhesive which worked for a while, but the trim started lifting. I then tried some 3M automotive double sided trim tape (can't remember which one) it started lifting after a few months too.
    What do the upholstery guys here recommend to get the trim attached to the vinyl?
     
  2. alchemy
    Joined: Sep 27, 2002
    Posts: 17,251

    alchemy
    ALLIANCE MEMBER

    Drill and tap for itty bitty studs.
     
  3. Were the vinyl door panels cleaned with a silicon type cleaner? (Armour-all, etc) That may be why the adhesive is having a hard time sticking. Try cleaning with wax & grease remover, and maybe try contact adhesive. Also, make sure the aluminum is dead straight before putting it on, if it has a slight bow in it, that will eventually pull the glue off.
     
    udtoy and lothiandon1940 like this.
  4. Jim Bouchard
    Joined: Mar 2, 2011
    Posts: 718

    Jim Bouchard
    Member

    I had horrible results with that weldwood

    I like the Permatex automotive headliner adhesive. Comes in a big orange can with a dark blue lid. About $12 bucks at the parts store
    Elwood says…..
    This is glue, strong stuff!!!
     

  5. Hollywood-East
    Joined: Mar 13, 2008
    Posts: 1,531

    Hollywood-East
    Member

    Nothing but a mechanical type fastener is going to work...
    Think about each time the door closes, The round stock wants to keep going (inertia)
     
    desotot, udtoy, Cosmo49 and 6 others like this.
  6. oldolds
    Joined: Oct 18, 2010
    Posts: 3,186

    oldolds
    Member

    ^^^^^^^^ This plus the different expansion rates of the materials.
     
  7. indyjps
    Joined: Feb 21, 2007
    Posts: 4,390

    indyjps
    Member

    Can you use an external body trim clip ?

    If the moulding is homemade (no return flange on the backside) possibly use 3M panel bond / epoxy / JB weld to add studs. Tig weld would be best if you're set up for it.
     
    Last edited: Oct 5, 2021
    udtoy likes this.
  8. Budget36
    Joined: Nov 29, 2014
    Posts: 7,229

    Budget36
    Member

    Thank you very not so much, now I’m going to try to sleep without thinking of a polka dot bikini.
     
  9. udtoy
    Joined: Aug 3, 2016
    Posts: 5

    udtoy

    Thank you all for your opinions and replies. I'm going to work out a mechanical attachment. The stock is only .25 x .125 so not much room for threads. I'll experiment on some scrap with some "itty bitty" studs screwed in (#2 machine screws?). Tig would be great, but don't have one.
     
  10. MCjim
    Joined: Jun 4, 2006
    Posts: 322

    MCjim
    Member
    from soCal

    Shoe glue, it is flexible.
     
  11. nrgwizard
    Joined: Aug 18, 2006
    Posts: 1,410

    nrgwizard
    Member
    from Minn. uSA

    For mini-studs(think bolts/machine screws w/head cut off), look at RC/Flying Model Airplanes sites. Also HO scale (Aurora, Tyco, ect.)cars n maybe train sites, good hobby shops will have this stuff, too. 4-40, & smaller. Get the right tap, nuts n machine screws. Run a couple nuts up near the head, install, maybe w/epoxy or JBWeld, then cut head off, dress cut, use the nuts as a die to straighten cut threads & redress w/a point file. Easy. One of the best hobby shops was AutoWorld, think they're gone. In MN, Hub Hobby is good.
    Marcus...
     
    X-cpe likes this.
  12. If you countersink them, 4 oval head stainless screws wouldn't look out of place at all.
     
  13. X-cpe
    Joined: Mar 9, 2018
    Posts: 1,246

    X-cpe

    Push clips might be an option to small nuts.
     
    X38 likes this.
  14. nrgwizard
    Joined: Aug 18, 2006
    Posts: 1,410

    nrgwizard
    Member
    from Minn. uSA

    "Push clips might be an option to small nuts." .
    Probably would. Shouldn't need threads for those, just a somewhat soft rod, correct dia for available pushclip size.
    Marcus...
     

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