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-   -   Stanchion bases bedding/gasket (https://www.sailnet.com/forums/gear-maintenance/72031-stanchion-bases-bedding-gasket.html)

Shortman 02-13-2011 01:35 PM

Stanchion bases bedding/gasket
 
I will be having some or all of my stanchion bases rebedded at my yard this spring. I do not have the "luxury" of the time to do it myself, my '84 Pearson 34 is 350 miles away.
The original setup is rubber/neoprene/whatever gaskets that, for the most part seem to be holding pretty fast. The plan is to survey the deck w/an infrared camera to find wet spots. The bow pulpit is loose for sure.
The guys at the yard say they just bed in sealant. Rig Rite sells 1/16" "rubber" gaskets for these specific bases that "helps cushion deck stresses" which makes a whole lot of sense to me. They are 1/16" smaller than width & length & the bolt holes are smaller than the 1/4" bolts for a tight fit.
Along with bedding the bolts in sealant, I would expect to have the yard run a bead of sealant around the base perimeter, yes?
I have seen discussions of bedding deck hardware in butyl w/some real big on it & some not at all. Not sure I'm keen on it, especially in this application where the flexing might tend to squeeze it out.
Any experience with this?
The guys at the yard are a good bunch but less obsessive than me about the details so I want to be specific about procedure.

Maine Sail 02-13-2011 01:56 PM

Quote:

Originally Posted by Shortman (Post 697666)
I will be having some or all of my stanchion bases rebedded at my yard this spring. I do not have the "luxury" of the time to do it myself, my '84 Pearson 34 is 350 miles away.
The original setup is rubber/neoprene/whatever gaskets that, for the most part seem to be holding pretty fast. The plan is to survey the deck w/an infrared camera to find wet spots. The bow pulpit is loose for sure.
The guys at the yard say they just bed in sealant. Rig Rite sells 1/16" "rubber" gaskets for these specific bases that "helps cushion deck stresses" which makes a whole lot of sense to me. They are 1/16" smaller than width & length & the bolt holes are smaller than the 1/4" bolts for a tight fit.
Along with bedding the bolts in sealant, I would expect to have the yard run a bead of sealant around the base perimeter, yes?
I have seen discussions of bedding deck hardware in butyl w/some real big on it & some not at all. Not sure I'm keen on it, especially in this application where the flexing might tend to squeeze it out.
Any experience with this?
The guys at the yard are a good bunch but less obsessive than me about the details so I want to be specific about procedure.

PLEASE DO NOT replace your gaskets with gaskets. If your decks are dry consider yourself very, very lucky. There are LOTS of these Pearson's with sopping wet decks because of these gaskets. They allow far to much movement and then leak.

Here's a Pearson I actually made a video of with the moisture meter in the shot..

Use a marine grade sealant or butyl tape, countersink the holes and tighten everything down once...

YouTube - Why Gaskets Leak

sailingdog 02-13-2011 01:57 PM

Don't use gaskets. They're a bad idea. Use butyl tape instead.


Damn, maine sail beat me to it.. ;)





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