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Go Back   SailNet Community > On Board > Gear & Maintenance
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  #1  
Old 03-26-2010
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Leaky chainplates

What product do I use for re-sealing my chainplates? I have searched the forums and have seen totally conflicting answers. Poly? 5200? Silicone?

Thanks in advance guys
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Old 03-26-2010
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Butyl Tape is a very good choice, especially if your chain plates have a metal cover that comes down on top to fit flat on the deck.

If you have questions I'd recommend you read my Marine Sealants In A Nutshell post.
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Old 03-26-2010
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Quote:
Originally Posted by sailingdog View Post
Butyl Tape is a very good choice, especially if your chain plates have a metal cover that comes down on top to fit flat on the deck.

If you have questions I'd recommend you read my Marine Sealants In A Nutshell post.
Just took mine off last week for the first time in 31 years. BONE DRY..........factory bedded with gray butyl tape. Will be going back together with the same..
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Last edited by Maine Sail; 09-17-2010 at 05:54 PM.
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Old 03-26-2010
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Where can you buy butyl tape?
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Old 03-26-2010
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Where can you buy butyl tape?
RV supply stores, glass repair shops, local hardware stores, etc.

Or online here.
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Old 03-27-2010
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Quote:
Originally Posted by Maine Sail View Post
Just took mine off last week for the first time in 31 years. BONE DRY..........factory bedded with gray Tremco butyl tape. Will be going back together with the same..

Hi Maine Sail, in light of 3M 101 disappearing fast, would you still recommend polysulfide instead of butyl tape on chainplate covers that are not through-bolted? Or do you think butyl tape might be sufficient for something with so little load on it?

Yankee22, for what it's worth, I've been using butyl tape anywhere the hardware is through-bolted and does not need the adhesive properties really, just the sealing. This is most of my hardware. In other instance, I use polysulfide--generally 3M 101, but 3M has stopped making it. Life Calk is similar, but I prefer 101.
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Old 03-28-2010
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The timing of this thread is fortuitous. I'm in the process of repairing a portion of a rotted bulkhead and will be rebedding my chainplates. From Dog's quote below, it seems that butyl tape is the way to go. I also have to rebed a stanchion and genoa track so it looks like butyl is what I should use. It appears that Sabre used butyl tape in the 80's when the boat was manufactured.

Quote:
It is great for bedding deck hardware, especially things like chainplates, where a certain degree of movement is unavoidable. It has the greatest materials compatibility of all the sealants and is also probably the least expensive of them. It is probably the best sealant for any hardware above the water line that is through-bolted and doesn’t require the adhesive strength of polysulfide or polyurethane based bedding compounds.
Dog - Do you still agree that butyl tape is the way to go?
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I couldn't find it at Home Depot so I guess I'll just order it online. Any tips to the application?

Thanks guys
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Old 03-28-2010
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Yes, IMHO, the only deck hardware that should be bedded using something else is stuff that requires the strength of the adhesive and isn't through-bolted. If it is through-bolted, then butyl tape is the way to go.

You can get butyl tape at most glass repair shops, rv supply stores, or local small hardware stores—the big box stores won't carry it usually... odd...but true.
Quote:
Originally Posted by Sabreman View Post
The timing of this thread is fortuitous. I'm in the process of repairing a portion of a rotted bulkhead and will be rebedding my chainplates. From Dog's quote below, it seems that butyl tape is the way to go. I also have to rebed a stanchion and genoa track so it looks like butyl is what I should use. It appears that Sabre used butyl tape in the 80's when the boat was manufactured.



Dog - Do you still agree that butyl tape is the way to go?
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You know what the first rule of sailing is? ...Love. You can learn all the math in the 'verse, but you take
a boat to the sea you don't love, she'll shake you off just as sure as the turning of the worlds. Love keeps
her going when she oughta fall down, tells you she's hurting 'fore she keens. Makes her a home.

—Cpt. Mal Reynolds, Serenity (edited)

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Old 03-29-2010
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You answered my question sailingdog. To expand a bit, do I cut a slot in the tape to fit over the chain plate, snug it up to the edges of the plate and add enough tape on each side to cover the area of the metal cover Lay the cover on and use a sharp point to punch holes in the tape for the thru bolts
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