SoCal Jet Boats

Tech Talk => Gelcoat / Paint / Fireberglass Repair => Topic started by: Brad @ SCJB on September 25, 2019, 08:29:58 PM

Title: Attempting my first cap job...
Post by: Brad @ SCJB on September 25, 2019, 08:29:58 PM
I'm starting at the transom since it seems to be the easiest spot to fill. I got a roll of 1" cloth and using polyester resin. I've got about 4 layers of 1" strips. Then I got some silica thickener to mix with the resin to make a paste to fill the rest.

Any constructive feedback is welcome.

This is the boat we are raffling off at horsepower fest. It's a 78 Bahner. (Build thread coming soon)

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Title: Re: Attempting my first cap job...
Post by: JordanDangerfield on September 27, 2019, 08:18:04 AM
Very nice Brad!! Can't wait to see the boat finished.

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Title: Re: Attempting my first cap job...
Post by: 08chevyguy on September 27, 2019, 08:29:34 AM
Somebody is gonna get a fuckin badass boat!!!🤟

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Title: Re: Attempting my first cap job...
Post by: K-034 on October 01, 2019, 08:17:17 AM



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Title: Re: Attempting my first cap job...
Post by: Brad @ SCJB on October 01, 2019, 02:18:58 PM
After the several layers of cloth were laid down down.....I went in and filled it with a mix of 1/4" chopped glass, polyurethane resin, and silica thickener. Once this cures I'll sand it down then go back with more filler to smooth it out.

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Title: Re: Attempting my first cap job...
Post by: Brad @ SCJB on October 01, 2019, 03:54:39 PM
Once the filler cured I gave it a rough sanding...I can see the low spots that need to be filled in

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Title: Re: Attempting my first cap job...
Post by: Brad @ SCJB on October 02, 2019, 12:42:33 PM
Grinded and sanded the top and bottom edges to start the shape of the cap. Now I just need to fill it smooth. I will just use the silica thickener with resin to make a putty like material that's easy to spread and shape before it hardens

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Title: Re: Attempting my first cap job...
Post by: Brad @ SCJB on October 02, 2019, 01:44:16 PM
Final filling and smoothed. I will hand sand the rest down after this cures.

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Title: Re: Attempting my first cap job...
Post by: Glenn Smith on October 02, 2019, 02:45:42 PM
Final filling and smoothed. I will hand sand the rest down after this cures.

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Looking good Brad


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Title: Re: Attempting my first cap job...
Post by: 08chevyguy on October 02, 2019, 04:22:38 PM
Comin out great so far

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Title: Re: Attempting my first cap job...
Post by: zonahawk on October 02, 2019, 04:30:25 PM
I’m going to attempt this as well, please keep up the detailed posts!! Looks sweet!


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Title: Re: Attempting my first cap job...
Post by: Brad @ SCJB on October 02, 2019, 04:41:42 PM
Thanks guys.... starting to take shape slowly

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Title: Re: Attempting my first cap job...
Post by: zonahawk on October 03, 2019, 02:40:43 PM
Are you going to paint it yourself as well?


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Title: Re: Attempting my first cap job...
Post by: Johnny Utah on October 03, 2019, 08:34:26 PM
Ya what color????


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Title: Re: Attempting my first cap job...
Post by: eliminator18 on October 06, 2019, 01:40:34 PM
Are you planning on installing a rub rail?


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Title: Re: Attempting my first cap job...
Post by: Brad @ SCJB on October 07, 2019, 03:17:00 PM
Are you planning on installing a rub rail?


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No, that's the point of a cap job. It eliminates the seam covered up by the rub rail.

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Title: Re: Attempting my first cap job...
Post by: Brad @ SCJB on October 07, 2019, 03:17:59 PM
I'm not painting the boat myself. Mike and James at Kahos Kolors is painting it. It will have a red, white and blue patriotic paint scheme.

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Title: Re: Attempting my first cap job...
Post by: 08chevyguy on October 07, 2019, 03:36:16 PM
I'm not painting the boat myself. Mike and James at Kahos Kolors is painting it. It will have a red, white and blue patriotic paint scheme.

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Sounds like its gonna be amazing and awesome. Cant wait to see it!!🤟

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Title: Re: Attempting my first cap job...
Post by: zonahawk on October 07, 2019, 04:26:17 PM
Anyone know a good paint guy in the Midwest???


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Title: Re: Attempting my first cap job...
Post by: Brad @ SCJB on October 07, 2019, 06:27:27 PM
Filled and shaped. Now just need to go fill the little holes and patch some minor blemishes...like the one right on that corner.

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Title: Re: Attempting my first cap job...
Post by: zonahawk on October 07, 2019, 07:58:10 PM
Anyone know a good paint guy in the Midwest???


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Title: Re: Attempting my first cap job...
Post by: Brad @ SCJB on October 08, 2019, 08:10:43 PM
I've burned up all my talent. It's good but not perfect. I can keep filling, sanding, and smoothing for days on this, but it's as close as I'll get it for now because we're running out of time. The boat is headed to California in the morning to get new stringers and then paint. 39 days to go until HPF.

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Title: Re: Attempting my first cap job...
Post by: eliminator18 on October 09, 2019, 05:53:30 AM



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Title: Re: Attempting my first cap job...
Post by: Grimpala on October 09, 2019, 06:31:03 AM
Did you reinforce from the inside, or were the strips all applied from the outside of the hull?
Title: Re: Attempting my first cap job...
Post by: Brad @ SCJB on October 09, 2019, 08:57:18 AM
Did you reinforce from the inside, or were the strips all applied from the outside of the hull?

The inside was already fiber glassed all the way around from the factory.
Title: Re: Attempting my first cap job...
Post by: Grimpala on October 09, 2019, 11:06:43 AM
The inside was already fiber glassed all the way around from the factory.

Gotcha.  I've read a few times where the inside needs to be reinforced due to the grinding/sanding that is needed to smooth the outer layers that are added.  I'm wanting to cap my rogers but I wasn't sure how I'd get inside to reinforce it.
Title: Re: Attempting my first cap job...
Post by: 78Southwind on October 10, 2019, 02:06:50 AM
Great job... :thumbup:
Title: Re: Attempting my first cap job...
Post by: Roadrunner on October 11, 2019, 05:29:15 PM
Excellent job Brad. She’s going to be gorgeous
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