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Old 12-07-2019, 18:34   #1
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Join Date: Jan 2019
Location: Oriental NC
Boat: 1981 Tayana 37
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Round head screws on teak deck instead of bungs

So, I think I know the answer to this, but maybe this is something new I haven't heard about yet. Im looking at a boat that has teak decks, and all the bungs have been removed and round head screws up in (stainless of course) I assume coated in sikiflex or similar. My understanding of this is that its a trainwreck, and you have just allowed water into the balsa core. As the wood and the metal expands and contracts at different rates, and the sealant will eventually break and water will get in, the way to fix it is to remove all screws, fill with thickened expoy, drill, rescrew with flat head screws, then replace all bungs epoxinging them down.
Am I wrong? Is this a viable way to fix leaky teaky decks? with round head screws and no bungs?
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Old 15-07-2019, 06:45   #2
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Re: Round head screws on teak deck instead of bungs

You seem to have hit the nail on the head with your synopsis if the screws are visible. Bungs (set in varnish) are there to keep water AWAY from the screws. It isn't clear whether the screws are visible or if the countersinks in the teak have now been filled with sika/whatever instead of being bunged. If the bung-holes have been filled with goop, it's better than nothing, but screwed-teak decks are essentially all leaking or going to.
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Old 15-07-2019, 06:47   #3
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Re: Round head screws on teak deck instead of bungs

They are totally visible, and because they a re e round head the top of them if flush with the deck, so there is nothing you can add...no goop..no bungs
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Old 15-07-2019, 06:48   #4
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Re: Round head screws on teak deck instead of bungs

And flush with the deck, sorry
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