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  1. #1
    Cadet
    Join Date
    Feb 2002
    Location
    Florida
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    22

    Default Preserving wood with fiberglass resin, stays tacky

    I am trying to preserve some new wood on my boat using fiberglass resin without using fiberglass cloth. My local boat supply shop says this should work. However, when I apply the resin it does not fully cure, it stays tacky even after a couple days of drying. I've tried adding extra hardener but it still stays sticky. The air temp. has been in the 80 degree F. Any suggestions, would painting with gel coat or another type of sealer work better?

  2. #2
    Captain
    Join Date
    Feb 2002
    Location
    delaware
    Posts
    3,833

    Default Re: Preserving wood with fiberglass resin, stays tacky

    SORRY TO SAY FISHHEAD but you were told wrong ... polyester resin is not a glue , it truly doesn't bond to wood & it staves off rot like a sive.. it does nothin' to perserve wood .. the " sticky " that you are experiancing is a wax comin' to the surface . it's okay , alittle wet sandin' with soapy water will take the sticky out of it..

  3. #3
    Commander
    Join Date
    Mar 2002
    Location
    Fort Worth Texas
    Posts
    2,377

    Default Re: Preserving wood with fiberglass resin, stays tacky

    Did you use Acetone first? If you did then from experience I can say that it will eventually harden. If mixed per directions it will take about a week to fully cure.

  4. #4
    Rear Admiral
    Join Date
    Oct 2001
    Location
    Coppell, Texas
    Posts
    4,496

    Default Re: Preserving wood with fiberglass resin, stays tacky

    Howdy Fish Head,Actually, the problem you have is the absence of wax. Air inhibits polyester curing hence the tackey surface. Go to the grocery store and buy a chunk of Gulf sealing wax. Melt about 5 heaping tbls. of wax and mix it with 1/2 pt. of styrene monomer. Use about 2 tbls. of this concoction to 1/2 pt, resin. When the resin starts to cure, the wax is "squeezed" to the surface, sealing off the air and letting the resin cure.g'luck & c/6Hooty

  5. #5
    DJ
    Guest

    Default Re: Preserving wood with fiberglass resin, stays tacky

    Fish Head,Patience is in order here. Let it sit. It'll harden up.

  6. #6
    Petty Officer 2nd Class
    Join Date
    Jan 2002
    Location
    Va
    Posts
    142

    Default Re: Preserving wood with fiberglass resin, stays tacky

    It might be too late. The hardner has already evaportated out. Thats where the wax comes in at, keep the hardner from evorating. That is another problem with polyester resin. When resin is applyed thin it take a lot longer to cure then it gets cooler over night and give even more time for the hardner to evaporate. You cant add more hardner cause you cant get it mixed in right since its spread out. Too bad the boat yard didn't recomend epoxy. HArdner in epoxy is a solid just like the resin, nothin evaporates. If it get cooler the epoxy cureing will go dorment until it heats up again. once it stays at temp long enough it will compleatly cure.

  7. #7
    Captain
    Join Date
    Feb 2002
    Location
    delaware
    Posts
    3,833

    Default Re: Preserving wood with fiberglass resin, stays tacky

    if the sticky problem is because of NO WAX. then the salesperson sold him wrong twice..

  8. #8
    Rear Admiral
    Join Date
    Oct 2001
    Location
    Coppell, Texas
    Posts
    4,496

    Default Re: Preserving wood with fiberglass resin, stays tacky

    That's affirmative crab bait.c/6Hooty

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