Dumb question, laminating resin

Discussion in 'Fiberglass and Composite Boat Building' started by Cjmac, May 24, 2018.

  1. Cjmac
    Joined: Mar 2018
    Posts: 32
    Likes: 0, Points: 6
    Location: Pensacola

    Cjmac Junior Member

    Will laminating resin cure to a NON tacky / sticky finish if left long enough ? Reason i ask is i have some that was from a small repair i made 6 months ago .. i wasnt sure if it was still good . So make a little test piece, after about 24 hours it was a hard finish . NOT sticky or tacky . Im use to using epoxy or finish resin .. maby the store mixed a little wax in it by mistake?.. the repair i made . I layed it up, let it tack for few hour then covered with gelcoat with wax ..

    also anyone ever used totalboats resin or products
     
  2. Blueknarr
    Joined: Aug 2017
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    Likes: 178, Points: 43
    Location: Colorado

    Blueknarr Senior Member

    Laminating resins will cure fully without suffocation, but it useally takes a few days. Could you have over catalyzed?

    Sounds like your repair should hold up well.

    I don't have personal experience with totalboat products.
     
  3. gonzo
    Joined: Aug 2002
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    Location: Milwaukee, WI

    gonzo Senior Member

    Laminating resin has low viscosity for faster wetting. It may or may not have wax if it is polyester or vinylester. If you are doing a repair, it is common to use waxed resin when it won't need painting or gelcoating. However, it is difficult to clean the surface for any coating to adhere.
     
  4. Cjmac
    Joined: Mar 2018
    Posts: 32
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    Location: Pensacola

    Cjmac Junior Member

    I used 1.5 % .. i didnt know laminating resin would fully cure without covering it . .. guess ill use it . Its not for a structural piece any way . Just making a panel for some gauges .. really didnt want to glass over wood but , its just a gauge panel .
     
  5. Cjmac
    Joined: Mar 2018
    Posts: 32
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    Location: Pensacola

    Cjmac Junior Member

    So whats the trick to glassinh around sharp corner?
     
  6. Blueknarr
    Joined: Aug 2017
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    Location: Colorado

    Blueknarr Senior Member

    Don't

    If you really need sharp corners

    Ease to as fat a radius as feasible
    Pre seal wood with resin
    Lightweight cloth, multiple layers if needed
    Generous overlay onto faces
    Staples
    Rebuild corner sharpness with fairing compound

    Good luck
    Paul
     

  7. redreuben
    Joined: Jan 2009
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    Location: Beaconsfield Western Australia

    redreuben redreuben

    Make a resin paste or bog with talc or a light weight filler and paint it into your sharp corners before you apply the glass. Wet on wet.
     
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