Fiberglass pontoon seal to floor?

kryan2

Petty Officer 2nd Class
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Nov 23, 2008
Messages
193
Suggestions on what to put between the floor and fiberglass pontoon to seal it all up.....
 

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kryan2

Petty Officer 2nd Class
Joined
Nov 23, 2008
Messages
193
replacing 1 sheet but pulling up all boards to reseal..
 

ahicks

Captain
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Sep 16, 2013
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3,957
Have you considered installing a hatch on each side to monitor water, and possibly service a bilge pump placed under each?
 

kryan2

Petty Officer 2nd Class
Joined
Nov 23, 2008
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193
there is a bilge in each toon in the rear. Hatch for sure. I need something between the glass and wood. There is currently something black and sticky between there now....
 

ahicks

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Sep 16, 2013
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So the black sticky stuff will be remove prior to the new attempt, or must the new "stuff" be compatible with what's there now?
 

DECK SWABBER 58

Lieutenant Commander
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Aug 14, 2009
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1,913
Lexel caulk. Interesting...have never seen a pontoon boat with fiberglass pontoons.
 

kryan2

Petty Officer 2nd Class
Joined
Nov 23, 2008
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193
i would like to clean all the "old" stuff off and put something brand new.
 

Grub54891

Admiral
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Jun 17, 2012
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It is a rather interesting design, At the point it's at, I'd continue removing the decking, and get rid of all the sticky goo that is on there now. And replace all he wood.
 

ahicks

Captain
Joined
Sep 16, 2013
Messages
3,957
Maybe try to come up with a design that's more about gasket, less about sealant? I don't know what you would use, but if you could come up with something soft and pliable, it might last longer than a sealant, and be WAY less hassle to replace.
 

Bayou Dave

Lieutenant Commander
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Dec 13, 2012
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1,780
You should be able to find it locally at a RV supply or mobile home supply. Possibly at Lowes or HD.
 
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