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  #221  
Old 09-28-2012
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Re: Bedding Deck Hardware With Butyl Tape

I installed my deck hardware 7 years ago, and no leaks as of yet!
I have a foam cored deck, and dug out the foam core around the fitting holes using an allen wrench. First I drilled the hole through the top deck layer and through the foam, but not through the inner fiberglass layer. Previously I prepared my reaming out tool - an allen key - I sharpened the short end into a knife and put the long end in a drill. Then I inserted the knife end into the hole and ran the drill. Bits of foam came out the hole. I vacuumed the bits out of the hole and filled it with epoxy. After it set I re-drilled the fitting hole all the way through. Now I can't crush the deck and if the fitting leaks it doesn't penetrate into the foam. I used life-calk on the threads and under the fittings. I tightened once and have had no leaks at all on the hundreds of holes needed to set all the fittings.
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  #222  
Old 10-15-2012
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Re: Bedding Deck Hardware With Butyl Tape

Mr. Maine....
Fall temps are setting in and I am still waiting for my new plexi windows for my Edel 665. Hopefully they will be here for this weekend. (free so I cannot whine too much)
How cold can it be and still be ok to use butyl tape to seal these windows?
Thanks
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  #223  
Old 11-17-2012
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Re: Bedding Deck Hardware With Butyl Tape

Wow, excellent post! I've struggled with bedding hardware for years. Currently, my lifeline stantions are bedded with WEST, but I like your butyl idea better. Great use of clear lexan to show the effectiveness.
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  #224  
Old 11-20-2012
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Re: Bedding Deck Hardware With Butyl Tape

This is def a great thread.

I just purchased a roll of butyl tape from a local RV store for around $6.50. 3/4" x 30' roll
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  #225  
Old 11-20-2012
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Re: Bedding Deck Hardware With Butyl Tape

What's the deal with black!???

last summer I re-bedded a newfound metals portlight that the previous owner had bought but not finished installing. I used almost 1/2" thick round black butyl rubber that he'd also purchased from them.

I missed a spot and did a craptacular job securing the port so it leaked a little bit.

So I spent an entire day pulling it off the other day. Some of it came off well, some of it pulled paint and primer off the steel, and some of it is fantastically stuck on there in tiny bits I can't ever seem to get off. If I make a ball and roll it it 'sorta' works till my fingers stick together and make and unholy mess.

I tried turpentine and Acetone, neither seem to do much of anything. It's fairly cool/cold now, would it be easier in warmer weather?

Is black always so messy? Is the grey stuff better? (I used some flatter gray stuff I bought at camping world on a different hatch the black is WAY stickier so is the grey stuff inferior?)

Last edited by xymotic; 11-20-2012 at 06:24 PM.
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  #226  
Old 11-20-2012
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Re: Bedding Deck Hardware With Butyl Tape

Quote:
Originally Posted by Dubbinchris View Post
This is def a great thread.

I just purchased a roll of butyl tape from a local RV store for around $6.50. 3/4" x 30' roll
You may find that you get what you pay for..................

As mentioned (and shown) in the thread.
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  #227  
Old 11-20-2012
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Re: Bedding Deck Hardware With Butyl Tape

Quote:
Originally Posted by xymotic View Post
What's the deal with black!???

last summer I re-bedded a newfound metals portlight that the previous owner had bought but not finished installing. I used almost 1/2" thick round black butyl rubber that he'd also purchased from them.

I missed a spot and did a craptacular job securing the port so it leaked a little bit.

So I spent an entire day pulling it off the other day. Some of it came off well, some of it pulled paint and primer off the steel, and some of it is fantastically stuck on there in tiny bits I can't ever seem to get off. If I make a ball and roll it it 'sorta' works till my fingers stick together and make and unholy mess.

I tried turpentine and Acetone, neither seem to do much of anything. It's fairly cool/cold now, would it be easier in warmer weather?

Is black always so messy? Is the grey stuff better? (I used some flatter gray stuff I bought at camping world on a different hatch the black is WAY stickier so is the grey stuff inferior?)
There are literally hundreds of formulations & products sold as "butyl tape". The majority of it is simply unsuitable for deck hardware sealing.

Some of the black is very good quality but a lot messier than is necessary. I will no longer use black and I would not sell it either.

I used the NFM black stuff when I did my ports and only wish I had Bed-It Butyl tape back then.. Lots of the grays and off whites are not true butyl tapes such as the stuff often sold at RV stores. Gray is tough to do in a good quality tape, white is next to impossible...I have been trying to get my extruder to make one in white that meets my specs but they simply can't.

The fillers needed to make it off white literally ruin the product. I've tested over 40 tapes and only a hand full are decent quality..

This is the same with polyurethane sealants. There are literally hundreds of products sold that are a polyurethane sealant like 4200, Sikaflex etc. but not all the "formulations" are the same..
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  #228  
Old 11-20-2012
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Re: Bedding Deck Hardware With Butyl Tape

I tried to get roles of butyl from Toronto area yard that used to do C&C factory warranty, plus a lot of other boats. Rebedding hand rails, genoa tracks & stanchions before spring launch. Their parts guy said "I haven't seen any of that stuff for years, it's all the same, just go to a glazer". I worked in that yard for 7 years and we ALWAYS used factory spec. So, I ordered some from Mainsail, it shipped next day to my niece in DC and I'll pick it up on our turkey trip Thursday. Thanks again MS!
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  #229  
Old 11-21-2012
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Re: Bedding Deck Hardware With Butyl Tape

I bought some from MS and have used it to bed deck hardware, stuff works great. I'd rather spend a little more for proper materials than to do a job more than once.
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  #230  
Old 11-30-2012
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Re: Bedding Deck Hardware With Butyl Tape

Quote:
Originally Posted by Skipaway View Post
WOW. We've already become butyl tape converts. Now the discussion moves to quality of butyl tape! Actually seems an appropriate evolution.

- Charlie (what do I do with my home depot stuff?)
I just recently bought a Freedom 25 off EBay of all places and while I was bringing it down the intracoastal canal from Pt Arthur to Kemah, TX I got into some little showers. I noticed a few small drippy leaks from bolts on the deck/hull joint and around the compass. There was significant travail on this trip but this was at the beginning.

Having read the first page or two of this thread, I rushed out and bought some of this wonderful stuff that I knew I could get cheap from home depot. After I messed around with it a little, I came back and read the whole thread. I have now received two rolls from Maine Sail and the HD stuff will be used when I re-work my carport, not the boat!

There is a HUGE difference between the products. If I did not know they had the same base, I would not believe it. The Home Depot stuff is more like plumber's putty. It will fill the gap but not take a whole lot of movement. When it is compressed, it does not stick and elongate like the stuff Maine Sail is selling when things are moved and pulled apart.

Maine Sail, you DE MAN! Thanks!

Have FUN!
O'
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