Bonding Fiberglass to metal???

Discussion in 'Shop - Body and Paint' started by atomicjoe23, May 28, 2009.

  1. atomicjoe23

    atomicjoe23 Well-Known Member

    Joined:
    Feb 2, 2008
    Location:
    Silverdale, WA
    This could be a stupid question. . .but bear with me, I'm new to bodywork. . .

    Fiberglass can be bonded to sheetmetal bodywork correct?

    If so, what is the best way to do this? i.e. what adhesive would you recommend?

    I have a '79 F-150 and noone makes any of the louvered and scooped hoods for it, but the louvers and scoops are available separately as an add-on components from several companies. . .I plan on cutting holes in the sheetmetal hood and using a pneumatic flanger to flange the cut out and then bond the fiberglass scoops and louvers to the sheetmetal hood flush, and fill the gaps with filler, sand smooth, and paint. . .

    I know that I could rivet them to the hood flush or on top, but I would still be stuck with the rivets and a flush mount without rivet heads would look much better and cleaner.

    Thanks!
  2. Wild bill

    Wild bill Active Member

    Joined:
    Jun 23, 2008
    Location:
    ponca city, ok
    jb weld?
  3. RocketMan

    RocketMan Member

    Joined:
    Feb 3, 2004
    Location:
    Nasa Ames/Saratoga,Ca
  4. baja619

    baja619 Well-Known Member

    Joined:
    Aug 7, 2004
    Location:
    Corona / San Diego
    rivit / resin / bondo to smooth everything out and over.
    CHA - CHING
  5. desertspeed

    desertspeed Member

    Joined:
    Oct 23, 2002
    Location:
    San Marcos, CA
    Try looking into Sikaflex- I know a lot of the custom RV builders use it in their construction.
  6. johnnyweb

    johnnyweb Well-Known Member

    Joined:
    Jan 24, 2003
    Location:
    Gilroy-Shop
    I have Owned, Operated and performed auto body repairs for 25 years. Go with the 3m or equivalent structural bonding adhesive. I recommend either 3m #8115 or #8214. Very strong stuff! don't even go there with jb weld, resin, bond etc.
  7. atomicjoe23

    atomicjoe23 Well-Known Member

    Joined:
    Feb 2, 2008
    Location:
    Silverdale, WA
    Thanks desertspeed and johnnyweb. . .sounds good to me!
  8. atomicjoe23

    atomicjoe23 Well-Known Member

    Joined:
    Feb 2, 2008
    Location:
    Silverdale, WA
    This looks to be the stuff from Sikaflex. . .used in critical marine fiberglass bonding applications so it has to be good stuff!!!

    Sikaflex® -292

    "Sikaflex®-292 is a one-component, thixotropic, high modulus, structural, polyurethane-based adhesive system. The product is used for a wide range of bonding applications, deck-to-hull bonding and bedding of chainplates, through-hull fittings and toe rails. A high viscous, high strength adhesive, Sikaflex®-292 can replace rivets, screws, welds and other mechanical fasteners in building and repairing boats of all types. This remarkable product is designed for use on a wide variety of marine substrates. It seals and bonds in one step."

    I'm also gonna look into the two 3M products you recommended johnnyweb. . .

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