Have a bonding seam question - NCRS Discussion Boards

Have a bonding seam question

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  • Dennis H.
    Expired
    • September 30, 2005
    • 226

    Have a bonding seam question

    Hi everyone

    Been a while since I posted or checked in here got busy with life in general. I'm back in the game so to speak with my 9th Corvette and hopfully my last frame off restoration. Yea right.

    Well I have a 65 vert project that came to me somewhat complete minus the engine and trans that started out it's life as a base engine, GG on Green car. My new direction with this is to do this one my way and not head down the numbers matching road that I did with my last one. I'm about to pull the trigger on the body prep and hopefully have it painted by the New Year with any luck.

    I'm getting advice from different direction as to the preping of body seams; some say grind out the old filler and refill with panel adhesive, some say grind out and use fiberglass matt to fill while others say leave it alone.

    Now my thoughts on this subject is if it's not broke don't fix it. Other that a couple small areas where pervious repair was performed my bonding seams are tight and smooth as the day it left GM. What are your thoughts on this?

    Dennis
  • Mike E.
    Very Frequent User
    • June 24, 2012
    • 920

    #2
    Re: Have a bonding seam question

    Originally posted by Dennis Hendrix (44677)


    Now my thoughts on this subject is if it's not broke don't fix it. Other that a couple small areas where pervious repair was performed my bonding seams are tight and smooth as the day it left GM. What are your thoughts on this?

    Dennis
    Dennis ---

    My vote is for the bolded text.



    Mike

    Comment

    • Scott M.
      Expired
      • January 1, 1996
      • 216

      #3
      Re: Have a bonding seam question

      I think I wouldn't screw with it unless you were replacing body panels. I had to replace panels on my '67 so I did glass all the seams and its not too bad of a job, but if yours aren't damaged after 50 years that says something.

      Comment

      • Bill H.
        Frequent User
        • February 1, 1993
        • 38

        #4
        Re: Have a bonding seam question

        Hi, Dennis: Regarding your bonding seam question, I would have to agree with your instinct about leaving the seams alone, with a few qualifiers: If there are no cracks in the seams, or no areas of repair that extend into the bonding strip/seam area that need repair, then I would leave the seams as they are. The seams have shrunk now as much as they ever will. Taking the time to grind out the seams and refill them with panel adhesive is a very slow and exacting process , and will eventually also shrink over time. Grinding the seams and filling with mat and resin I cant imagine the worth in attempting to do. Since you did state that you are not looking to do an original appearing restoration, I can suggest a few products to use that will help you achieve an excellent, smooth, straight surface. (1) Spray gel coat. (2) Slick Sand surfacer-primer. Both provide an excellent, heavy based surface that seals the fiberglass panels as well as the bonding seams that then can be block sanded to achieve a very smooth surface. There are many brands of spray gel coat available. Slick Sand is a product name sold by many automotive paint retailers. If you want additional info, please PM me. I will be glad to provide you with any additional information regarding fiberglass repair, refinishing, and repainting. I have many years experience in Corvette body repair and painting.

        Comment

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