JS550 and 650sx paint / gelcoat help??
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  1. #1
    Resident Guru sportsfreak29's Avatar
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    JS550 and 650sx paint / gelcoat help??

    I'm currently doing a bunch of hull mods to my 650sx and will be doing a js550 afterwards.

    I would like to re-gelcoat both the hulls bit have been reading that it doesn't stick well to the smc hull sections.

    Is there a primer that will bond the gelcoat down, or am I going to be stuck painting the hull?
    If you're not crashing, then you're not trying!!!

    '90 650sx, full mod with all the bells and whistles.
    '84 JS550/650 pump swap with PJS Viper engine.
    '93 550sx with a 650sx motor and Rhass pump kit.
    '81 JS440, full mod 550 PP motor. '
    '93 300sx/750 SP BOB.

    Special thanks to Chris Newmiller, the guys at Prowatercraft Racing, Rhaas Products, and Mitchell at M&M Marine!

  2. #2
    PWCToday.com Is My Home Away From Home bandit88's Avatar
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    Re: JS550 and 650sx paint / gelcoat help??

    OEM was painted with imron. No gelcoat as it will only bond to stuff molded with polyester resin.
    -95 750SXI
    -86 440 with PJS800 conversion (now 650) - http://www.pwctoday.com/showthread.php?t=466927
    -92 750SS
    -81 JS440
    Parts for sale HERE

  3. #3
    PWCToday Newbie mavgrab302's Avatar
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    Re: JS550 and 650sx paint / gelcoat help??

    I can attest to that but not sure it was imron or maybe not on mine, just had my 91 repainted with awlgrip. Wanted to go gelcoat route but guy had awlgrip on hand and was a bit cheaper..

  4. #4
    PWCToday.com Is My Home Away From Home
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    under a ton of work
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    Re: JS550 and 650sx paint / gelcoat help??

    gelcoat is a no go on smc.

    kawi used imron on js hulls,not sure on sx however.
    Last edited by restosud; 01-11-2019 at 08:20 PM.

  5. #5
    Frequent Poster Kawy750's Avatar
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    Re: JS550 and 650sx paint / gelcoat help??

    I’m thinking of painting my project ski too. An 87 300sx. I just redid the aluminum on my pontoon boat with easypoxy epoxy paint. I’m thinking it will work nicely on the ski as well. I just planned on scouring the surface with sand paper and rolling/brushing it on. Anyone have experience using an epoxy paint on top of the stock paint?
    08 Superjet
    Limited B pipe, Girdled ADA 35cc, Toby footholds, Riva scoop and stock D cut ride plate.


    87 300sx

    My EX's
    81 440/650
    89 550
    89 650
    96 SXI

  6. #6
    Frequent Poster
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    Dec 2016
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    Portland
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    204

    Re: JS550 and 650sx paint / gelcoat help??

    If using a gun, I redid my 85 using single stage PPG. Durability has been great and after 2 summers in the sun still shines. Ensure to wax 30 days after spraying and prior to it seeing water (to prevent spots)

    155CF241-516C-435B-84ED-CCBDD2DCBB17.jpeg

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