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  • shine
    shine replied to the thread adhesion questions.
    my first coat of base is a reduced coat of epoxy .
  • Jim C
    Jim C replied to the thread adhesion questions.
    Dan, epoxy is so chemical resistant, atleast good ones, that the base wont bite into it at all. Think about this...you can sand...
  • Barry
    Barry replied to the thread adhesion questions.
    Exactly Jim, heavy polyester type base do not have the same adheision of a polyol base .
  • Barry
    Barry liked Jim C's post in the thread adhesion questions.
    i will add this as well. i think it depends on the base you are using. i could sand epoxy, any epoxy, not just spi, that was 3 days old...
  • danp76
    danp76 replied to the thread adhesion questions.
    So, why does this happen? Why can base be applied over sanded urethane, but not sanded epoxy? Both being several weeks old.... And what...
  • Jim C
    Jim C replied to the thread NEED ADVICE FOR PAINTING PVC.
    if the rubber is flexible pvc then paint will bond. if its regular black rubber like on a tire, etc, then that is not pvc and it wont...
  • Jim C
    Jim C replied to the thread adhesion questions.
    i will add this as well. i think it depends on the base you are using. i could sand epoxy, any epoxy, not just spi, that was 3 days old...
  • Barry
    Barry replied to the thread adhesion questions.
    Here is best example of what Jim is saying. How many production shops over the years have scuffed a new factory ecoated panel and based...
  • Barry
    Barry liked Jim C's post in the thread adhesion questions.
    You dont spray base on epoxy that is more than 24-36hrs old regardless of sanding. 7 day window applies more to urethane primer or sealer
  • jlcustomz
    jlcustomz replied to the thread NEED ADVICE FOR PAINTING PVC.
    If part is a rubber that you can depress with a fingernail, paint may bond now but fail later. Think I'd tape that part with pinstripe...
  • Jim C
    Jim C replied to the thread adhesion questions.
    You dont spray base on epoxy that is more than 24-36hrs old regardless of sanding. 7 day window applies more to urethane primer or sealer
  • Jim C
    Jim C replied to the thread NEED ADVICE FOR PAINTING PVC.
    Well pvc requires no adpro. Wipe it down with acetone and a rag to clean it and prep the surface then shoot a coat of epoxy primer on it.
  • 7
    73surffisher liked DATEC's post in the thread Setting Gaps.
    Your welcome. While this is a paint related forum questions don't need to be solely paint related. The members here are some of the best...
  • danp76
    danp76 posted the thread adhesion questions in Shop Talk.
    Just to confirm: Scenario 1: Month+ cured 2k urethane primer sanded 400-600 scratch. Scenario 2: Month+ cured epoxy primer sanded...
  • MX442
    MX442 replied to the thread Tekna Prolite air leaking.
    I had that happen. I put the plastic plate behind the nozzle in backwards.
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