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  1. #1

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    Filler for bumps and pods

    Warbird builders. Many warbirds have bumps and pods etc the are made from ABS plastic. Some are rather flimsy. My question, does anyone fill these assorted abs parts with a filler for added strength and gluing stability. If you fill these abs parts what filler do you use etc. Thanks for any info Stuka Jon

  2. #2
    uncljoe's Avatar
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    RE: Filler for bumps and pods

    Use body filler ie. ever coat,or light weight bondo, use the thin plastic as molds ,as the filler will pop out.
    Joe
    Look towards the Horizon......your death awaits you there So Enjoy today ,,,,,,

  3. #3
    G-Pete's Avatar
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    RE: Filler for bumps and pods

    Most of that material is styrene (white) - For interior stiffness I use just balsa and thin CA, for outboard I stiffen them with strips of the same material glued perpendicular into the dome. That gives me a additional attachment points. Very important by using adhesives on styrene is the sanding with 80 grit paper, especially with Epoxy. My favorite glue for styrene is medium CA.
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    G-Pete
    Owner of WERK77 and Fritzdezings

  4. #4

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    RE: Filler for bumps and pods

    Jon,
    I've successfully used that spray insulation foam (the yellow stuff only) from Home Depot on filling ABS cavities, including dummy engine cylinders, ordinance pylons, blisters, etc. On deep cavities (like wing pylons) apply a small amount and allow that to settle and dry. Continue this process until the cavity is filled. If the entire void is filled all at once, ABS distortion will occur. Smaller ABS objects don't have this problem.

    Good luck.

    Oh, has your Grandson left for Boot Camp?

    NICK

  5. #5

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    RE: Filler for bumps and pods

    Thanks for the reply Nick, will give the foam a shot. Yes Matt is at Parris Island now. In his 8th week. Thanks for asking. See you at your meet in OCT. Jon


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