elementary questions..
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elementary questions..

  1. #1
    deckboat owner rschap1's Avatar
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    Default elementary questions..

    Virtually NO experience with fiberglass repair !!!
    I need to fix up the nose of my 550sx stand up jet ski.
    Hope the gurus here will lead me in the right direction !
    Bought the ski a couple years ago now.
    It had some hairline looking cracks where it looked like an impact happened.
    Rode it like that the first summer and used an epoxy filler last winter.
    Ended up with some red laquer/spot putty on top of that, white enamel spray paint, and printed out my own decals on vinyl(btw...after clear coating them, they didn't look too bad and held up too).
    BUT...
    my repair didn't hold up very well.
    Figured it need a more solid repair than just the fillers I used last year.
    I took a 2" disc sander and ground away my old stuff and tried to get into solid glass.
    I had a "Bondo" brand fiberglass repair kit.
    It had a small sheet of mat, bottle of resin, and tube of MEK peroxide hardener.
    I am now hearing that these may not be the best materials.
    Wondering if this stuff is just junk, not compatible, good enough, far better than what I did before an will be OK, or somewhere in between these???

    VERY much appreciate whatever can be shared
    I know its not a BigBlock drag boat, but ...I can use the help!
    THANKS !!!
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  3. #2
    Half a bubble off jrork's Avatar
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    Default

    Okay, since nobody has offered to help, I'll throw out what I would try to do but I, by no means am an expert.

    I was told once that alot of jetskis are laid up using epoxy. If that's the case, the products you are using likely wont stick very well. Epoxy sticks to everything, polyester (like what I believe you used) based products dont like to stick to epoxy.

    Can you get to the back side of that cover?

  4. #3
    deckboat owner rschap1's Avatar
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    Default epoxy

    I have heard a couple places too that epoxy based stuff is needed.
    I have a friend that has been a dealer for AwlGrip epoxy paint for years now.
    I am going to strip off what I put on and get in touch with him.
    AwlGrip may be overkill for the paint, but I am sure that he has experience with this stuff that I do not.
    If I take the fuel tank and water box out of the ski, I can get to the back side.
    That wasn't my plan especially since these were just hairline cracks to start, but...
    being in Michigan I do have all winter to screw around with it.
    I would rather do it right now and no have to do it all over AGAIN!
    Appreciate the advice !
    THANKS !!!

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  6. #4
    Half a bubble off jrork's Avatar
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    Default

    Okay, as many know I'm a huge fan of epoxy and West Systems (primarily due to it being available locally to me). Regardless of the brand of epoxy you use, the West Systems website has some great tips, guides and videos that should really be able to help walk you thru it.

    Epoxy by the Leading Epoxy Manufacturer | WEST SYSTEM Epoxy


    Also, not sure if I'm misunderstanding your reply but epoxy resin is different that the epoxy paint your friend sells.

  7. #5
    deckboat owner rschap1's Avatar
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    Thanks for that too...I will check out there tutorials. I can use all the help I can get.
    I do realize the resin and paint are different, sorry about not being clearer.
    I just meant that I can find out what is really needed for a top coat and if it has to be epoxy based too he can help.
    He has a ton of experience with different fillers and paints so he can probably make sure that I am using compatible stuff at least.
    He has shared way too many stories about BIG projects needing to be redone many times since there was wrong stuff underneath

    Appreciate the link !

  8. #6
    deckboat owner rschap1's Avatar
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    Default try again...

    Well it was not difficult to get my last "repair" material off...


    A couple paper towels wetted lightly with acetone and it all wiped off.
    Guess the last little bit of hardener I had just was not even close to what I needed.
    The stuff never set up. I thought that would be the case, glad of it now.

    Wiped everything off, cleaned the base material off with acetone too, and then snaded everything back just a pinch more to make sure I am getting a fresh start. I will either hit West Marine next week while I am off work or place an order with US Composites, and probably pull the gas tank and exhaust out of the front so I can lay a couple pieces of mesh inside too.

    Thanks once more for the help !

  9. #7
    Senior Member OFFSHORE GINGER's Avatar
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    Hey boss , whats up and just curious what make is that Jet Ski , and from the looks of things in your pics the resin that might have been used is called a filler resin which often is a combo of resin and fabric all in one which is something i have seen used in the past on PWC , along with using that type of resin for making Dock Boxes many years ago but then again i could be wrong .
    Last edited by OFFSHORE GINGER; 11-13-2012 at 05:52 PM.

  10. #8
    deckboat owner rschap1's Avatar
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    Default there he is :)

    I was hoping to see Offshore Ginger
    Thanks for checking in on this!
    The jet ski is a 1995 Kawasaki 550sx stand up.
    I was told on a jet ski forum that these are a SMC construction.
    I had always thought that meant something like a thermoformed vacuum molded product.
    But when I asked about the mesh fabric within it, heard, "yes it is a mat reinforced SMC."
    And I had initially tried a "Bondo" brand repair kit like I mentioned at the start here...
    I guess that is not the right stuff, I should be using epoxy based products.
    Right now I am planning on getting epoxy stuff to do it.
    The pics do show how there appears to be some layers of different stuff, hopefully it shows.
    There is mostly white, the fabric, and some beige/brown in there too.

    Appreciate anything that might keep me from f'ing up or having to re-do this again.
    THANKS ! ! !
    Last edited by rschap1; 11-14-2012 at 03:28 AM.

  11. #9
    Senior Member OFFSHORE GINGER's Avatar
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    Its all good my friend and seeing that your PWC is a Kawasaki i am almost willing to bet that your machine was made from Epoxy And to tell you the truth the only problem i have when telling you this information is ...............................that i really do not know what years or models they were using epoxy in there build , and if you do not want to take any chances of having to do your machine over again yes by all means i would recomend using epoxy and be done with it if you know what i mean .........................
    Last edited by OFFSHORE GINGER; 11-14-2012 at 07:24 AM.

  12. #10
    deckboat owner rschap1's Avatar
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    I finally made it to West Marine before the holidays.
    Debated between ordering at US Composites and hitting the local West Marine store.
    After pricing stuff, shipping, knowing I only need a pretty small amount of stuff...
    I got some packs of their resin and hardener.
    Now I need warmer weather before I start fixing this thing back up.
    Come on spring time
    Thanks for the help and advice again!!
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