Filler UNDER Gelcoat?
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Filler UNDER Gelcoat?

  1. #1
    Half a bubble off jrork's Avatar
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    Default Filler UNDER Gelcoat?

    Im gonna fly my rookie flag here and ask what kind, if any, filler can be used under gelcoat? I was thinking about a skim coat on my transom that I would block out to fill any slight imperfections prior to shooting the gel. Is it possible?

    I was thinling of some Rage Gold I have but am not sold on it.

    Thanks for the help.......

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    Senior Member SuperJet's Avatar
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    Don't waste your money on Rage Gold.. any body filler will do. I use 3m hi build filler, it is half the price of Rage and in my oppinion is better than rage. It spreads easier and sands easier.
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    Senior Member holorinhal's Avatar
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    John, as long as the filler is polyester based, it should be ok.
    If you are still concerned you could always mix a filler from resin and microbaloons. I use this all the time for filling and fairing and it sands pretty easy.

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  6. #4
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    The 3M Marine Premium Filler; gelcoat will adhere to it and is is sandable and can be uses above or below the waterline.

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    Thanks very much guys. I'll give it a shot...............john

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    Senior Member OFFSHORE GINGER's Avatar
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    John , if memory serves me right , i thought you used Epoxy when doing the repairs on the tramson ( correct ? ) and if so.............. you are going to need a filler that is compatible like ( Ad tec's ) P-77 because in the past i have seen the 3-M filler fail when used on Epoxy unless you have preped the surface in primer already with a primer like Duratec .
    Last edited by OFFSHORE GINGER; 12-13-2012 at 02:01 PM.

  9. #7
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    Great info Artie. Thanks very much

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