Cruisers Forum
 


Join CruisersForum Today

Reply
 
Thread Tools Rate Thread Display Modes
Old 20-12-2015, 11:22   #46
Registered User

Join Date: Apr 2015
Posts: 107
Re: Use of butyl tape to bed hardware to deck

Quote:
Originally Posted by scottthardin View Post
My 7.5 year old boat has been sailed a lot and I am now entering a period where numerous leaks are appearing. I had a bit of an urgent situation where I used butyl tape and ss fasteners to bed portlight covers in a way that made sense given that I might change the cover material out in the near future. A friend mentioned that butyl tape could work well for all rebedding issues where fasteners are involved such as stanchions, genoa car tracks, and the ss bases where my shrouds enter the boat and are subsequently attached to chainplate bars.

Have others used butyl tape extensively for above-the-water-line bedding efforts? I always thought marine grade silicon was what one used for such situations but my friend thinks butyl tape will give me longer life and easier serviceability. What do others think?
The makers of my " Houdini " hatch state that any warranty is void unless butyl is used for sealing.
__________________

__________________
bustermaw is offline   Reply With Quote
Old 20-12-2015, 11:45   #47
Registered User

Join Date: Sep 2014
Location: Conquerall Bank Nova Scotia
Boat: Catalina 30
Posts: 60
Re: Use of butyl tape to bed hardware to deck

1 more vote for butyl, I own a 78 Catalina 30 that had leaks everywhere and now is bone dry, recommend reaming penetrations with a countersink to allow the butyl to create an "o"ring around bolts and screws.(with any sealant really) Cleans up easily with mineral spirits
__________________

__________________
Peters Wet is offline   Reply With Quote
Old 20-12-2015, 11:51   #48
Registered User
 
Bill_E's Avatar

Join Date: Aug 2008
Location: New Mexico and Puerto Rico
Boat: Sunbeam, 37, Ziamar
Posts: 300
Re: Use of butyl tape to bed hardware to deck

Well, I'm another satisfied butyl tape user. Several people have posted the link to MaineSail's bed-it-butyl. (pbase.com) It's not exactly cheap but it's a lot cheaper than 5200 and easier by many hours. If you get it from MaineSail, be sure to read all of his links about how to use it. It is not an adhesive so you must have fasteners!! I've used it in the tropics and had no problems with running. I just use a little ball of the leftover to clean up. In most applications, a little bit goes a long way. The only place I think I'll ever use 5200 again is to bed and seal thruhulls.

Here is a link to a pretty good discussion of the different kinds of marine sealants. I agree with almost all of Dan's comments. Adrift at Sea ยป Marine Sealants in a Nutshell

Bill
__________________
Don't believe everything you think
Bill_E is offline   Reply With Quote
Old 20-12-2015, 12:24   #49
Senior Cruiser

Cruisers Forum Supporter

Join Date: Jul 2005
Boat: Outbound 44
Posts: 4,575
Re: Use of butyl tape to bed hardware to deck

Quote:
Originally Posted by Pyxis156 View Post
I put a bead of 4000 UV around the outer edge of what I am sealing. Keeps the butyl in and pretty much eliminates butyl streaking. I have had to touch up or replace the caulk over time but have yet to have to remove the hardware and rebed anything sealed with butyl...
That would make for a much more complicated install.
__________________
Paul L
http://svjeorgia.blogspot.com
Paul L is offline   Reply With Quote
Old 20-12-2015, 12:33   #50
Registered User
 
redhead's Avatar

Join Date: Mar 2011
Location: PNW 48.59'45N 122.45'50W
Boat: Ian Ross design ketch 63'
Posts: 764
Images: 5
Re: Use of butyl tape to bed hardware to deck

Question to all you butyl users.

If I rebed say my stanchions with butyl, and the diesel deck fill is right next to one of the stanchions, (which it is), over the course of my life I am bound to slosh a bit of diesel when filling. I understand that even a slight exposure to petroleum product (even diesel exhaust) will degrade the butyl, thus breaking the seal.

My husband just said "You're going to get howled at".

I said, "So what?"

Any answers?
__________________
redhead is offline   Reply With Quote
Old 20-12-2015, 12:38   #51
Registered User

Join Date: Feb 2011
Posts: 2,105
Re: Use of butyl tape to bed hardware to deck

Quote:
Originally Posted by redhead View Post
Question to all you butyl users.

If I rebed say my stanchions with butyl, and the diesel deck fill is right next to one of the stanchions, (which it is), over the course of my life I am bound to slosh a bit of diesel when filling. I understand that even a slight exposure to petroleum product (even diesel exhaust) will degrade the butyl, thus breaking the seal.

My husband just said "You're going to get howled at".

I said, "So what?"

Any answers?
True, diesel or any oils will degrade any other petroleum products over time.
You could put an absorbent towel around the fill hole.
__________________
reed1v is offline   Reply With Quote
Old 20-12-2015, 13:36   #52
Registered User
 
El Pinguino's Avatar

Join Date: Aug 2013
Location: Punta Arenas ahorra
Boat: 39' Westerly Sealord
Posts: 3,949
Re: Use of butyl tape to bed hardware to deck

Quote:
Originally Posted by redhead View Post
Question to all you butyl users.

If I rebed say my stanchions with butyl, and the diesel deck fill is right next to one of the stanchions, (which it is), over the course of my life I am bound to slosh a bit of diesel when filling. I understand that even a slight exposure to petroleum product (even diesel exhaust) will degrade the butyl, thus breaking the seal.

My husband just said "You're going to get howled at".

I said, "So what?"

Any answers?
I'd be more worried about the $50k fine for pollution of the sea
El Pinguino is online now   Reply With Quote
Old 20-12-2015, 13:58   #53
Registered User

Join Date: Jun 2010
Location: Des Moines and the Lesser Antilles
Boat: PDQ 44i
Posts: 152
Re: Use of butyl tape to bed hardware to deck

5200 is an adhesive and should be used when adhesive properties are needed. It is such a good adhesive that it should not be used when the parts to be joined may need to be separated again.
Butyl is a wonderful waterproofing sealant, easy to use, and very reliable. Your auto windshield is bedded in butyl, for example.
Silicone caulk has little to recommend it outside its intended domain in the home bathroom. It contaminates everything it touches and must be laboriously removed mechanically before trying a different method of waterproofing.
Try the butyl. You will like it. I get mine from Sailrite; there are many on-line vendors if you can't find it locally.
__________________
doublewide is offline   Reply With Quote
Old 20-12-2015, 14:21   #54
Registered User
 
redhead's Avatar

Join Date: Mar 2011
Location: PNW 48.59'45N 122.45'50W
Boat: Ian Ross design ketch 63'
Posts: 764
Images: 5
Re: Use of butyl tape to bed hardware to deck

Pinguino - I agree with you there. I don't have $50K to give away.

But when we filled up with 1100 USG two weeks ago we hired a fuel truck to deliver it at a work dock. As careful as he was I may have seen a drop or two escape. And although in my mind I have the grace of Pavlova whilst filling the tanks, ***** happens.

So use another scenario where a petroleum product spills right on or next to my butyl bedded deck fittings, do I automatically assume bond failure?

Thanks
__________________
redhead is offline   Reply With Quote
Old 20-12-2015, 14:28   #55
Registered User
 
lateral's Avatar

Join Date: Apr 2011
Location: NZ
Boat: S34 Bob Stewart - 1959 Patiki class. Re--built by me & good mate.
Posts: 703
Re: Use of butyl tape to bed hardware to deck

Only thing I have against butyl if you allow the item to be sealed to twist you can end up with a broken seal. ie heads of screws.
So sometimes I use a combo, butyl on static & 291 on the twisting component.
3M VHB & Dow 295 for glazing. No fasteners. My choice anyway.
__________________
lateral is offline   Reply With Quote
Old 20-12-2015, 14:43   #56
Registered User

Join Date: Apr 2015
Posts: 107
Re: Use of butyl tape to bed hardware to deck

Quote:
Originally Posted by redhead View Post
Question to all you butyl users.

If I rebed say my stanchions with butyl, and the diesel deck fill is right next to one of the stanchions, (which it is), over the course of my life I am bound to slosh a bit of diesel when filling. I understand that even a slight exposure to petroleum product (even diesel exhaust) will degrade the butyl, thus breaking the seal.

My husband just said "You're going to get howled at".

I said, "So what?"

Any answers?
Yeah ! and white spirit too.
" So what " ,that's quite a cavalier attitude you have there lady.
That's the kind of mindset that gave women the vote , and what a mistake that was !
__________________
bustermaw is offline   Reply With Quote
Old 20-12-2015, 14:55   #57
Registered User
 
Reefmagnet's Avatar

Join Date: May 2008
Location: puɐןsuǝǝnb 'ʎɐʞɔɐɯ
Boat: Nantucket Island 33
Posts: 2,735
Re: Use of butyl tape to bed hardware to deck

Quote:
Originally Posted by lateral View Post
Only thing I have against butyl if you allow the item to be sealed to twist you can end up with a broken seal. ie heads of screws.
So sometimes I use a combo, butyl on static & 291 on the twisting component.
3M VHB & Dow 295 for glazing. No fasteners. My choice anyway.
That's been a concern of mine. We've solved it for the times we can't avoid turning the screw excessively by wrapping a small additional string of butyl around the shank of the screw immediately under the head - like a washer - before screwing it down.

One thing not mentioned directly in this thread so far, too, is that all holes in the deck to be sealed need a slight countersink added to allow the butyl to form a thicker seal around the hole.

Sent from my SGP521 using Cruisers Sailing Forum mobile app
__________________
Reefmagnet is offline   Reply With Quote
Old 20-12-2015, 19:11   #58
Registered User

Join Date: Sep 2009
Location: Protection Isd, Nanaimo B.C.,Canada
Boat: Endurance 35, Nanamuk
Posts: 30
Re: Use of butyl tape to bed hardware to deck

When we built the boat 37 years ago we use 2 part Thiokol - still no leaks but same as 5200 to disassemble. Switched to 5200 10 years ago, only complaint is it gets everywhere. Last winter we redid the deck and re-bedded everything with butyl tape - not 100% happy. In the heat of the summer (B.C. so not tropical hot) it oozed out and I had to tighten all the fastenings and trim off the squeezed out butyl - probably would not have happened if I had done the installs in the heat but this was a winter project. The other issue is that the tiny seam of butyl attracts dirt and can't be cleaned to look crisp. I think I'll go back to 5200.
__________________
Nanamuk is offline   Reply With Quote
Old 20-12-2015, 22:59   #59
Registered User
 
nic26's Avatar

Join Date: Dec 2013
Location: Malta
Boat: Nicholson 26
Posts: 67
Send a message via Skype™ to nic26
Re: Use of butyl tape to bed hardware to deck

your way to go is

Compass Marine How To Articles Photo Gallery by Compass Marine How To at pbase.com

Found the good stuff there, nothing to find in Europe.
__________________
nic26 is offline   Reply With Quote
Old 21-12-2015, 00:24   #60
Registered User
 
gamayun's Avatar

Join Date: Aug 2013
Location: Oakland, CA
Boat: Freedom 38
Posts: 1,231
Re: Use of butyl tape to bed hardware to deck

Quote:
Originally Posted by bustermaw View Post
Yeah ! and white spirit too.
" So what " ,that's quite a cavalier attitude you have there lady.
That's the kind of mindset that gave women the vote , and what a mistake that was !
The "so what" comment was not only cavalier, but more to the point that she doesn't really give a sh*t what others might be considered laughable. I tend to agree.

As to the fueling issue, put a rag around the nozzle to catch drips. Unless you're filling without a single brain cell on alert, there's no reason to be going full blast enough to spew fuel all over. Topping off (even in a car) is a ridiculous habit...

As to petroleum and butyl degradation, I'd be really surprised that a whiff of diesel would cause an adverse reaction, unless 'maybe' it were in closed quarters.
__________________

__________________
gamayun is offline   Reply With Quote
Reply

Tags
bed, deck, hardware

Thread Tools
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
The Use of Butyl Tape to Attach Sealed Portlights to My Boat James Dieterich Construction, Maintenance & Refit 12 10-06-2015 07:24
Butyl Tape in Tropics tonga Deck hardware: Rigging, Sails & Hoisting 35 11-12-2011 06:36
Butyl Tape vs Polysulfide Caulk on Rebedding Dreamcat Construction, Maintenance & Refit 34 11-11-2009 14:56
Butyl Tape and 3M Weatherban Ziggy Construction, Maintenance & Refit 7 29-04-2009 04:52
Butyl Tape Acadia Construction, Maintenance & Refit 4 10-11-2008 04:50



Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -7. The time now is 17:37.


Google+
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.