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When do you apply seam sealer?

Discussion in 'Body Restoration' started by 76_TypeLT, Feb 13, 2010.

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  1. Feb 13, 2010 #1
    76_TypeLT

    76_TypeLT Veteran Member Lifetime Gold Member

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    Dumb question, I know, but I am not exactly sure. I assume seam sealer is the last thing you apply after you apply paint, POR-15 or whatever you use. Thanks!
     
  2. Feb 13, 2010 #2
    olstyle

    olstyle Veteran Member Lifetime Gold Member

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    I don't really think it matters. Now adays most seam sealer is paintable.
     
  3. Feb 13, 2010 #3
    ATM

    ATM Veteran Member Lifetime Gold Member

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    I am going to apply mine before I paint any POR on.
     
  4. Feb 14, 2010 #4
    76_TypeLT

    76_TypeLT Veteran Member Lifetime Gold Member

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    Got it, thanks. Any brands of seam sealer stand out above the others?
     
  5. Feb 14, 2010 #5
    RICARDO1969

    RICARDO1969 Veteran Member Lifetime Gold Member

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    por-15 first then when everything is nice and dry apply seam sealer otherwise those unprotected parts can start to rust under the seam sealer.
     
  6. Feb 14, 2010 #6
    ATM

    ATM Veteran Member Lifetime Gold Member

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    Won't the POR15 "seal" the seams then? Why would I not want to push the sealer into the seams then paint over it? The POR would just bridge the gap I would imagine. I plan on using a dual tube caulk gun type sealer...
     
  7. Feb 14, 2010 #7
    80ZnTexas

    80ZnTexas Veteran Member

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    I would think eventually the seam sealer will contract/expand or crack leaving an opening for moisture to get down into the seam. If I were going to go so far as to put down POR15 I would put it directly against the metal.
     
  8. Feb 14, 2010 #8
    Air_Adam

    Air_Adam Veteran Member

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    POR-15/primer will rust proof the gap, seam sealer is only to fill in the gap. Put your primer or POr15 on first, then the seam sealer over that (if it a paintable seam sealer) then paint the car.
     
  9. Feb 14, 2010 #9
    dirttrackin

    dirttrackin New Member

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    Normaly seam sealer is not applied over bare metal. Altho 3M does have one, I prefer the peice of mind having a 2 part primer under it.

    Personal opinion but the only place I've found for por is inside inaccessable spaces(frame rails and door shells)

    Tim
     
  10. Feb 14, 2010 #10
    FlaJunkie

    FlaJunkie Veteran Member Lifetime Gold Member

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    Why? No offense, just curious...:confused:
     
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