SoCal Jet Boats

Tech Talk => Gelcoat / Paint / Fireberglass Repair => Topic started by: quick olds on March 12, 2013, 08:13:22 PM

Title: Bottom prep
Post by: quick olds on March 12, 2013, 08:13:22 PM
Ive heard alot of theorys but whats proven to gain mph smooth as possible or ????
Title: Re: Bottom prep
Post by: lupo1904 on March 12, 2013, 08:30:02 PM
Depends what hull you have, removing any hook has to be good for something.I'm in the middle of doing my gull wing and it is a lot of work.this will be the 2nd gul wing I have done , the first hasn't touched water yet.
Title: Re: Bottom prep
Post by: quick olds on March 12, 2013, 08:39:24 PM
I checked with a straight edge and mines not hooked is that the right way to check or was i told wrong? Ive never done and bottom prep on mine its a 73 anthony 18ft well 17.5 shallow v
Title: Re: Bottom prep
Post by: lupo1904 on March 12, 2013, 08:47:39 PM
Yes that's how you check, sothere were no gaps under the straight edge then that's good and no high spots either.how was the keel
Title: Re: Bottom prep
Post by: GT Jets on March 12, 2013, 09:44:32 PM
When you say "smooth as possible" are you speaking of the actual ride surface?

Having things totally falt are not always a good thing, there are times when you have too little horsepower where a small hook is virtually required to keep the hull drivable.

That being said, smooth surface, no, dimpled, bumpy or even a coarsely sanded surface is best. Sounds dumb, but its all about surface tension.

The problem is, if the surface is too rough, it gets "slippery", meaning she wont react to steering too well either.

I have found that Speed Coat or even a very "orange peeley" paint is the way to go, on the aluminum stuff, some strategically orchestrated 80 grit polishing did the job.

GT
Title: Re: Bottom prep
Post by: quick olds on March 13, 2013, 06:57:30 AM
Ok cuz i have paint chips missing and stuff now just wondering if i sanded and re painted if i would see a difference i cant afford speed coating
Title: Re: Bottom prep
Post by: SoCalPSD on March 13, 2013, 07:53:36 AM
Speed coating is only 40 bucks a quart. Koyatc pointed that out after I spend 100 bucks on paint
Title: Re: Bottom prep
Post by: quick olds on March 13, 2013, 08:32:42 AM
Really? How do i use it spray it like paint? Ive heard its expensive
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