Fiberglass lifespan

Discussion in 'Materials' started by Cacciatore, Sep 22, 2018.

  1. Cacciatore
    Joined: Oct 2008
    Posts: 44
    Likes: 0, Points: 6, Legacy Rep: 10
    Location: Italy

    Cacciatore Junior Member

    Hi Guys ,

    what is the fiberglass lifespan in seawater and swamp water without drydock works ?
    Features of fiberglass - Orthoptalic resin and Gelcoat
    Can I reach 20 years using Isoptalic / Neopentyl Gelcoat without blisters ?

    Thanks in advance for the support.
     
  2. ondarvr
    Joined: Dec 2005
    Posts: 1,794
    Likes: 87, Points: 48, Legacy Rep: 506
    Location: Monroe WA

    ondarvr Senior Member

    If you plan to leave it in the water 100% of the time then use either a good ISO, and/or a VE skin coat.

    You won't know a good ISO from a bad one, so use at least a VE skin coat.
     
  3. trip the light fandango
    Joined: Apr 2018
    Posts: 105
    Likes: 16, Points: 18
    Location: Rhyll Phillip Island Victoria Australia

    trip the light fandango Senior Member

    You can't work polyester etc over epoxy, but a coat of epoxy as a seal is more waterproof and harder than the others, however an intact gel coat,.. should last more than 20years submerged I would think. but I'm guessing a bit , it depends on what else is in the water.
     
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