Flotation foam

froggy1150

Master Chief Petty Officer
Joined
Nov 3, 2017
Messages
843
Might have been a little overkill but I wanted something that would last. Every piece of wood that was put into boat was 100% wrapped in fiberglass before Install. Then tabbed,glassed or whatever was needed
 

Scott Danforth

Grumpy Vintage Moderator still playing with boats
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Jul 23, 2011
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49,538
when you go to pull the motor out. pull the carb apart and clean with a can of carb cleaner. then re-assemble. that way a year from now you are not fighting with fuel residue gummed up in the carb
 

Jakem

Ensign
Joined
Apr 25, 2021
Messages
964
As to be expected there was complete rot. The wood was not laminated together anymore and also not stuck to the fiberglass. What's there is about 3 inch thick. Is that the normal thickness I should have when I redo it
 

Scott Danforth

Grumpy Vintage Moderator still playing with boats
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49,538
transom should be 2.00-2.25" thick
outer fiberglass (about 1/4-3/8" thick)
1-1/2" of wood
inner fiberglass
 

JASinIL2006

Vice Admiral
Joined
Feb 10, 2012
Messages
5,673
As to be expected there was complete rot. The wood was not laminated together anymore and also not stuck to the fiberglass. What's there is about 3 inch thick. Is that the normal thickness I should have when I redo it

That stinks. What kind of boat are you working on?
 

tank1949

Lieutenant Commander
Joined
Apr 4, 2013
Messages
1,892
I have found a soft spot in the fiberglass on my floor. I have cut the fiberglass back and found rotten plywood. The foam is dry right to the bottom and zero damage to the stringer. Now is that foam supposed to be really light kinda deal as it is
Pray what you see is mildew or mold. I can't count the numbers of times in my boats that foam has soaked up water. Drill into stringer and examine drillings for black rot or water. If any, you probably are going to spend a lot of time grinding and re glassing. If not, plug holes with 5200 and thank God, you caught it in time.
 

nola mike

Vice Admiral
Joined
Apr 22, 2009
Messages
5,362
Pray what you see is mildew or mold. I can't count the numbers of times in my boats that foam has soaked up water. Drill into stringer and examine drillings for black rot or water. If any, you probably are going to spend a lot of time grinding and re glassing. If not, plug holes with 5200 and thank God, you caught it in time.
Yeah, that train left the station about 10 posts ago šŸ˜‚
 

tpenfield

Moderator
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Jul 18, 2011
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18,039
Well, we are gonna need more pictures going forward, now that the sawz-all is coming out of the tool box.
 

Jakem

Ensign
Joined
Apr 25, 2021
Messages
964
Here is 2...someone has patched it before in 2 different spots
 

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Jakem

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Apr 25, 2021
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I didn't think it would make a difference beings it all had to go so the end result would be the same
 

Jakem

Ensign
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Apr 25, 2021
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There was no inside fiberglass at all it was just wood anyways so somebody was in there for sure
 

JimS123

Fleet Admiral
Joined
Jul 27, 2007
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8,162
Nothing cooler than a boat with a mahogany transom with 8 or 9 coats of spar varnish. It's the classic look. Not everybody has that opportunity.

1704660176883.jpeg
 

Scott06

Admiral
Joined
Apr 20, 2014
Messages
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I didn't think it would make a difference beings it all had to go so the end result would be the same
Most go from the inside so there is no exterior fiberglass work like fairing and gel coat.you certainly can go from outside in, can paint the outside with automotive type finishes .

Pay attention to transom thickness spec Scott gave you can glass the new transom from both sides to prevent rot. My buddies glastron has exposed plywood at top, real shoddy as far as keeping it from rotting
 

Jakem

Ensign
Joined
Apr 25, 2021
Messages
964
My outside glass looked like someone was shooting at it lol...so many holes so much sealant...I will be glassing it all ...
 
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