Can this Cap job be one that will last??
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Can this Cap job be one that will last??

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    Senior Member johnf's Avatar
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    Default Can this Cap job be one that will last??

    I'm not trying to cut any corners but why have a 6" mess when you can have a 2-1/2"mess Please advise what not to do. My cap doesnt line up very good with transom.I don't want to glass all the way up to top of cap, going to try and blend the hump in the best I can. Hence the small section of fill in, Around the sides it gets a little better. I want to grind like shown fill big gap with poly epoxy as shown with temp caulking, then build up to close were I want it with poly and matt roughly 5/8"pieces. The blue tape is 1-1/8" apart. sand the layers of matt smooth then go over the matt with some cloth about a 1" strip. then prep for primer and paint. I have read every thread I can find on capping. Seems to be the way most are done except for the size. And using poly so I can use matting to fill the small void. Also nothing structual is needed to hold cap together. Bottom line is am I way out of line to try this??? Please give me some reasons not to do this or some better ways to attempt it. Thanks as always Johnf.

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    I wouldn't waste my money on epoxy for this. The boat was made with poly why or resin for epoxy . That's a big gap. Grind out then fill with mat till its done. When ur doing this you will see there is no easy way to do this or not to sand here or there. Good luck one job keep us posted

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    DEG
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    The gap is pretty large. Hard to tell not seeing it in person. I would make the over all larger then 1"1/8 as big as you can. 3"? And I would feather out from the gap. You'll need to do the inside too..
    1" peanut grinder makes easy work on the inside..
    Good luck. It will be sweet when it's done..

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    Quote Originally Posted by DEG View Post
    The gap is pretty large. Hard to tell not seeing it in person. I would make the over all larger then 1"1/8 as big as you can. 3"? And I would feather out from the gap. You'll need to do the inside too..
    1" peanut grinder makes easy work on the inside..
    Good luck. It will be sweet when it's done..
    Agree with DEG. When I did mine, I ground it back about 1 1/2" on each side of the gap. I used a 4" grinder then a little 1" peanut grinder like DEG mentioned and then for grins used my DA to really smooth out the grind. I then wet it out. Followed that up with multiple layers of glass tape with resin thickened with cabosil. Take your time and it'll last a long time. Mine is still going strong 5 years after with no cracks. As far as the big gap, they do sell a then fiberglass rope/string that can be stuffed in first and glassed in. I can't remember who originally mentioned that trick (Billy?) but I think it was back in the hotboat days.

    Regardless, it's not a hard job, just time consuming to get it nice. Once done, it'll be worth it. Good luck!

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    Senior Member johnf's Avatar
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    (Followed that up with multiple layers of glass tape with resin thickened with cabosil.)


    Thanks, Can I use matt with poly or is the tape better? The challenge that I have is minimizing the hump were the top of transom meets the cap!!!! tried to show it in the pic with the square, I guess to make it look right I would either grind the transom down to nothing or build the cap out a inch? (to make the whole thing flat) This is why I want to try to minimize the amount I build up the hump! Thanks for all the responses johnf.

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    Half a bubble off jrork's Avatar
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    I used tape for ease and consistency but I'm sure you can use the other just fine. Good luck and take lots of pictures. We like pictures....

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    Senior Member OFFSHORE GINGER's Avatar
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    John F , thank you for that very nice P.M. and jack wad ????????? Ha , Ha , Ha, and maybe just maybe you should take your toys and go home . Whah .
    Last edited by OFFSHORE GINGER; 02-03-2013 at 09:18 PM.

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    Senior Member johnf's Avatar
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    Too cold for resin outside but put one coat on. First try at this. If it cracks I'll put a rub-rail I guess.Filled gap with Epoxy,Sanded a little bevel in it,put 6oz on with epoxy, blocked with 80 broke through couple spots,(last pic) Came out really flat and smooth,I'going to wet out again(when warm),sand 150-220,then duratech primer. Fingers crossed. I'm open to critisizem,Never to late to sand some more!!!! thanks johnf
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