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Hull Damage - Repair tips

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Old 07-08-2018, 04:18 PM
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Default Hull Damage - Repair tips

I have 19ft Sea Ray that I moved across country and as I was cleaning it and getting it ready to go, I noticed a sizeable crack in the hull that I am pretty sure was not there before. I have attached some images....

Entire crack... about 7 inches long

Close-up of worst damage.


Is this something I can repair myself or should I have someone come out and fix it for me?
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Old 07-08-2018, 04:30 PM
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Hire a professional, that appears serious.
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Old 07-08-2018, 05:13 PM
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Some pictures of where it's at on the boat would help. But in general it appears serious (obviously) and should be fixed correctly.
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Old 07-08-2018, 05:18 PM
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Originally Posted by THT MOD 14 View Post
Hire a professional, that appears serious.
Thanks... That is what I thought too.

It must have happened on the trip. I lknow we ran over a couple things on the way. At on point, stuff fell off a truck in front of us and I had no time to move and we ran over a home depot bucket and a couple other things doing 60+ mph. The next time, we were driving down an interstate that had just gone down to two lanes; one east bound and one west bound. Someone in the other lane hit a pylon and knocked it right in front of us and I ran over that too.
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Old 07-08-2018, 06:38 PM
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Originally Posted by GeekBone View Post
Thanks... That is what I thought too.

It must have happened on the trip. I lknow we ran over a couple things on the way. At on point, stuff fell off a truck in front of us and I had no time to move and we ran over a home depot bucket and a couple other things doing 60+ mph. The next time, we were driving down an interstate that had just gone down to two lanes; one east bound and one west bound. Someone in the other lane hit a pylon and knocked it right in front of us and I ran over that too.

holy cow. what a trip. I am happy to see you made it safely. Yes, I would hire that to a professional. Also, I would check every square cm of that boat for other damage.
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Old 07-08-2018, 06:44 PM
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YIP SERIOUS THAT WILL LET WATER INTO THE STAKE AND TRAVEL SO NEED REPAIR ASAP !!
When the hull was made id say the strake only had a thin coat of glass and maybe filled with some muk and never glassed over properly so there could be a long void there !
Its not uncommon these things with strakes !
As a manufacture its something I am hot on and make sure ALL strakes are glassed before the hull is built !! size doesn't make any difference its the lowest part and sticks out so get hit regularly .
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Old 07-08-2018, 08:07 PM
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That looks like it needs to be glassed from the inside to get any strength. Hard to tell from a picture though
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Old 07-09-2018, 11:36 AM
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looks like it was already fixed before, looks like only gelcoat was used
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Old 07-09-2018, 12:44 PM
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Originally Posted by Raybo Marine NY View Post
looks like it was already fixed before, looks like only gelcoat was used
Definitely different colors there
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Old 07-09-2018, 01:59 PM
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Just had a similar crack appear when I came onto my lift a little heavy. Insurance company totaled the boat as the whole boat has to be de-rigged to fix this from the inside.
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Old 07-09-2018, 03:08 PM
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It looks like it was done in the water. Wouldn't have water weeping out from trailering.
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Old 07-10-2018, 10:51 AM
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Ameturs, here’s how you fix holes in boats.

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Old 07-10-2018, 11:16 AM
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Originally Posted by The Duke 26 View Post
Just had a similar crack appear when I came onto my lift a little heavy. Insurance company totaled the boat as the whole boat has to be de-rigged to fix this from the inside.
Wow.
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Old 07-10-2018, 07:44 PM
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Grind away all the damaged areas until you have solid glass. Buy some epoxy resin and hardnee and some 404 high density filler. Thicken to consistency of peanut butter and fill in hole. Sand down then put a layer or two of 1708 mat and itll be good as new.
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Old 07-11-2018, 03:26 AM
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Why is it so hard to understand the strakes have been filled with some sort of rubbish filler ( resin and saw dust used to be a favorite ) and no glass !! The hull laminate went over the top of the Crap that filled the strakes so if you try repairing from inside and grinding THROUGH the hull laminate you are creating a really big problem and destroying the the hulls ultimate strength !
Re build and repair from the outside ! Its simpler and much less hassle !!
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Old 07-11-2018, 10:24 AM
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newsflash tunnels- not all of them are filled solid
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Old 07-11-2018, 03:35 PM
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Default this is old news !

Originally Posted by Raybo Marine NY View Post
newsflash tunnels- not all of them are filled solid
THE strake thing has been going on for years and years and my self have owned boats with leaking strakes and delamination !So from personal exsperiance and as a manufacture I did something about the problem !!
AS A MANUFACTURE myself ALL STRAKES ARE FILLED SOLID AS !! I don't care how small or big the boat is 10 foot to 110 foot if it has strakes THEY GET FILLED SOLID ! are fully glassed completely before the main laminate of the boat is laid ! that way they can be completely destroyed but the hull remains 100 % and completely intact !!
Glass laid going into and around strakes makes the bottom more flexible because of the 3 angles and is the reason stringers are placed there BUT if glass is laid long and straight over the top of the filled 100% filled and glassed strakes the hull is able to withstand a lot more punishment and if they get damaged there's far less chances of water coming in from the damaged strake and delamination !
Acquired knowledge and acquired work skills over many years is a great thing but keeping to your self is pointless and why i enjoy working in different countries and many different places handing on knowledge as well as gaining local knowledge also ! learning never stops !
So all Chinese boat in places ive worked making boats not only for export have all there strakes filled soild even on the 48 footers we sent to Canada and Australia and England and all the small boats 4.5 meter 5 , 6, 7, 8, meters fast boats all solid filled !!!

NEWS FLASH TO Raybo Marine NY
Well made in CHINA !!

Last edited by tunnles; 07-11-2018 at 04:02 PM.
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Old 07-11-2018, 04:19 PM
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thats great, give yourself a pat on the back

doesnt help this guy with his boat

ps- we been doing it since the 60s so its not exactly something so ground breaking that you discovered in china
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Old 07-11-2018, 05:00 PM
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Makes me want to run out and buy an all Chinese boat, hahaahaha!!!!
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Old 07-11-2018, 09:30 PM
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Originally Posted by Raybo Marine NY View Post
newsflash tunnels- not all of them are filled solid
I know and your transoms are still made with plywood ! Funny but I don't ever remember ever a nz made boat and there strakes not being filled and the ply transoms never getting wet and rotting , never !!! so why the difference ?? workman ship ? materials used ??or what ??
Even the native Tahitians fill strakes !! , the Japanese filled strakes !! ,and the Chinese fill strakes and dont use any wood at all in the construction of the boats !! Its 100% composite !
Chinese boats where I worked are Built to exceed any sort of survey standards world wide !
Do any of your manufactures even know or understand what is requited to build to any kind of survey standards ??

Last edited by tunnles; 07-11-2018 at 09:39 PM. Reason: add to
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