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512 bb Paint problem

Discussion in 'Boxers/TR/M' started by 88 1/2 328gts, Oct 26, 2011.

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  1. 88 1/2 328gts

    88 1/2 328gts Rookie

    Aug 23, 2006
    34
    Largo, Florida
    Full Name:
    Dr. Albert E Andrion
    #1 88 1/2 328gts, Oct 26, 2011
    I have a '77 512 bb. I had the rear valence and bumper repainted about 2 years ago. The challenge that I am having is that the paint on the middle section of the bumper is beginning to crack and peal. That particular section of the bumper is just behind the muffler and it seems to get very hot. Has anyone else had this problem and if so, how did you remedy the situation?
     
  2. Melvok

    Melvok F1 World Champ
    Owner Silver Subscribed

    Jul 25, 2008
    14,268
    Amersfoort, The Netherlands, Europe.
    Full Name:
    Mel
    #2 Melvok, Oct 26, 2011
    Bring it back to the paintshop !

    Have a better undercoating and have it (free) re-sparayed !

    Good-Luck ! :)
     
  3. 88 1/2 328gts

    88 1/2 328gts Rookie

    Aug 23, 2006
    34
    Largo, Florida
    Full Name:
    Dr. Albert E Andrion
    #3 88 1/2 328gts, Oct 26, 2011
    Thank you. I contacted the paint shop today and I am bringing it up there tomorrow. Do they make an undercoating that is designed to work as a heat shield?
     
  4. suicidedoors1964

    suicidedoors1964 Formula Junior

    Oct 2, 2004
    385
    #4 suicidedoors1964, Oct 26, 2011
    Look into LizardSkin ceramic insulation. I used it on my project.
     
  5. Melvok

    Melvok F1 World Champ
    Owner Silver Subscribed

    Jul 25, 2008
    14,268
    Amersfoort, The Netherlands, Europe.
    Full Name:
    Mel
    #5 Melvok, Oct 26, 2011
    Can you send us some pictures please ?

    This may help us .... :)
     
  6. Turbopanzer

    Turbopanzer F1 World Champ

    Oct 2, 2011
    11,120
    Under a bonnet
    Full Name:
    Panzer
    #6 Turbopanzer, Oct 26, 2011
    Have you considered placing an fiberglass/foil insulation blanket on the underside/inside of the rear bumper to protect the paint? Also you may consider a heat sheild made of the same material on a thin metal plate to deflect the heat away from the bumper. Best of luck in you quest to resolve the issue.
     
  7. open roads

    open roads F1 Rookie

    Jan 28, 2007
    3,799
    Sarasota, Fl.
    Full Name:
    Stan
    #7 open roads, Oct 26, 2011
    I would double up. I like heat shields that allow some air between the shield and what you are protecting. Then on the item you want to protect, I would consider Lizard Skin or similar.
     
  8. petearron

    petearron Formula Junior
    BANNED

    Jul 1, 2009
    687
    Las Vegas
    Full Name:
    jeff
    #8 petearron, Dec 4, 2011
    Had the same issue when my BB was painted, the paint kept bubbling off due to gasses soaking in the glass over time, I think they stripped it again and let it bake in the paint booth oven all day to fix so paint would stick
     
  9. JTR

    JTR Formula 3
    Owner

    Apr 26, 2005
    1,502
    in a house
    Full Name:
    John
    #9 JTR, Dec 4, 2011
    I agree it must be the repaint job.
    My 79BB has original paint back there, and is still in fine condition, no bubbles or cracks. John
     
  10. Rock

    Rock Formula 3

    Nov 9, 2003
    1,652
    Toronto, Canada
    Full Name:
    Rocco
    #10 Rock, Dec 7, 2011
    possibly, your car has aftermarket ansa exhaust. If so this two case muffler is too close to the rear bumber. We have repainted many rear bumbers over the years.
    install an internal sheild or install the stock exhaust.
     

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