Results 1 to 11 of 11

Thread: Fiberglass Quistion

  1. #1
    Ausfish Silver Member DATCOL's Avatar
    Join Date
    Feb 2005
    Location
    CABOOLTURE

    Fiberglass Quistion

    Hi All doing a renovation on a 5 M Express Tiny, Building seat boxes come Esky, Out of foam sandwich sheets designed for side walls on motor homes etc, Has fiberglass inside & glass outside with flow coat finish, Can i use it as is with the raw glass inside or do i have to paint or flow coat the inside Cheers COL

  2. #2

    Re: Fiberglass Quistion

    Flowcoat inside Col. If you are going to use it as an esky,It needs to be sealed properly.
    Mick
    Not all tools are usefull.
    Nappies and politicians should be changed regularly for the same reason..

  3. #3

    Re: Fiberglass Quistion

    You could use epoxy and leave inside unpainted. Unlike poly resins epoxy is fully water proof. Mind you it takes ages for water to ceep through poly. So in a simple esky I don't think it'd matter really. flow coat is just poly resin with a wax/paint in it. It's no more water proof than plain old fibreglass poly resin

  4. #4
    Ausfish Silver Member DATCOL's Avatar
    Join Date
    Feb 2005
    Location
    CABOOLTURE
    Thread Starter

    Question Re: Fiberglass Quistion

    P1290001.JPGP1290003.JPGP1290004.JPGP1290002.JPG This is the project boat 5 meter EXPRESS that the seat boxes come eskys are fore
    I have built a bate station with tackle box Panted the inside fitting under floor buoyancy P1290008.JPGP1290006.JPG
    I Sprayed the inside with flow coat came up OK but have some small pin holes in the finish how do i prevent this in the future, Re vamping this for my run about, So will be selling my Not long rebuilt De Havilland 25 HP forward control electric start tiny & trailer With lots of new gear including new color chirp sounder, looking for about $3000 Col

  5. #5
    Ausfish Addict Chimo's Avatar
    Join Date
    Jun 2006
    Location
    Gold Coast

    Re: Fiberglass Quistion

    Col

    Excellent sea boat and good fun in the surf too.
    Like what you are doing with pool acid bottles as well.

    Re the glass question, when I built some large frp structures years ago with really basic molds (ie timber frame with Masonite over top and melinex as the release agent I used to add 10% flow coat to the resin and had my colour all through it. worked a treat and would too for your job.

    Cheers
    Chimo
    What could go wrong.......................

  6. #6

    Re: Fiberglass Quistion

    Quote Originally Posted by Flex View Post
    You could use epoxy and leave inside unpainted. Unlike poly resins epoxy is fully water proof. Mind you it takes ages for water to ceep through poly. So in a simple esky I don't think it'd matter really. flow coat is just poly resin with a wax/paint in it. It's no more water proof than plain old fibreglass poly resin
    Youre nearly right Flex
    Flowcoat is mainly Gelcoat with some resin usually and a solution of Styrene with liquid parafin wax and pigment. You can get Food grade flowcoat.Dont know about epoxy. Why use epoxy when its usually 4 times the price of Polyester.
    Mick
    Not all tools are usefull.
    Nappies and politicians should be changed regularly for the same reason..

  7. #7
    Ausfish Silver Member DATCOL's Avatar
    Join Date
    Feb 2005
    Location
    CABOOLTURE
    Thread Starter

    Re: Fiberglass Quistion

    Seat boxes are done, Very slow progress to many interruptions P2200001.JPGP2200003.JPGP2200002.JPG

  8. #8

    Re: Fiberglass Quistion

    Well done, that should keep the beers cold.

  9. #9

    Re: Fiberglass Quistion

    "I Sprayed the inside with flow coat came up OK but have some small pin holes in the finish how do i prevent this in the future"

    I have had a few successful attempts at spraying both gelcoat and flow coat, thin it down a little more, Also I used a touch up spray gun with a small nozzle, I got a pretty good finish with a bit of orange peel but, sanded and cut back came up like factory..

    Did the inside of a kill tank, but rolled it not sprayed, it came up like factory as well.

    Regards
    Honda.

  10. #10
    Ausfish Silver Member DATCOL's Avatar
    Join Date
    Feb 2005
    Location
    CABOOLTURE
    Thread Starter

    Re: Fiberglass Quistion

    P9120003.JPGP9120001.JPGP9120006.JPGPB100002.JPGPB100003.JPGPB100005.JPGPB100001.JPGFinally have the Express renovation completed & ready to get on the water, Hear are Some finished pictures, Cheers COL

  11. #11

    Re: Fiberglass Quistion

    Re: Fiberglass Quistion

    "I Sprayed the inside with flow coat came up OK but have some small pin holes in the finish how do i prevent this in the future"


    If you want to reduce the number of pinholes,try using a layer of Surface Tissue over your Chop Strand Mat after you have rolled it but before it gels. It will take that industrial finish/pattern off the raw fibreglass.as well. It is hard to spray over fibreglass and not get pinholes. I usually brush my flowcoat on. Hope this helps.
    Mick
    Not all tools are usefull.
    Nappies and politicians should be changed regularly for the same reason..

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
Join us