SailNet Community - Reply to Topic

   Search Sailnet:

 forums  store  


Quick Menu
Forums           
Articles          
Galleries        
Boat Reviews  
Classifieds     
Search SailNet 
Boat Search (new)

Shop the
SailNet Store
Anchor Locker
Boatbuilding & Repair
Charts
Clothing
Electrical
Electronics
Engine
Hatches and Portlights
Interior And Galley
Maintenance
Marine Electronics
Navigation
Other Items
Plumbing and Pumps
Rigging
Safety
Sailing Hardware
Trailer & Watersports
Clearance Items

Advertise Here






Go Back   SailNet Community > On Board > Gear & Maintenance > Question about butyl tape
 Not a Member? 


Thread: Question about butyl tape Reply to Thread
Title:
  

By choosing to post the reply below you agree to the rules you agreed to when joining Sailnet.
Click Here to view those rules.

Message:
Trackback:
Send Trackbacks to (Separate multiple URLs with spaces) :
Post Icons
You may choose an icon for your message from the following list:
 

Register Now

In order to be able to post messages on the SailNet Community forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
Please note: After entering 3 characters a list of Usernames already in use will appear and the list will disappear once a valid Username is entered.
User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.



Click here to view the posting rules you are bound to when clicking the
'Submit Reply' button below


Additional Options
Miscellaneous Options

Click here to view the posting rules you are bound to when clicking the
'Submit Reply' button below


Topic Review (Newest First)
06-24-2009 12:49 AM
DropTop I used to own a wireless company in the Mid-West, we would use Butyl tape (specifically 3M 2228, it is usually referred to as mastic tape in the electricial and RF world, but it's same thing as far as I know) to weatherproof all of our connections up on top of cellular towers. The process we used to provide a 100% moisture and humidity proof all weather seal on sensitive antenna connectors and low voltage data connectors was as follows:

wrap a continuous strip of vinyal electricial tape slightly overlaping with each wrap around cable from 3/4" below the connector, up over the connector and to 3/4" past the connector on the other side of the cable.

wrap mastic tape (stretched to 1-3mm thick for most applications) around the entire connector, and past completly covering all electrical tape, with a 1/4" overlap onto the extending wire insulation on each end.

wrap starting from the bottom (assuming the cable & connector is running vertically) in a continuous strip, another layer of electrical tape starting 1/2" below the mastic tape and making sure to overlap aprox 3/16" to 1/4" over the layer below it all the way up to 1/2" above the top of the mastic tape.

two important notes to mention... 1) always try to wrap tape from the bottom up to create a overlap similar to how shingles or wood slats on siding overlap. this is just for extra protection and makes sure water drips down and over the tape and cannot collect or seep into it should it seperate for any reason 2) make sure the outer layer of tape has a large enough overlap on each wrap to withstand some expansion pressure as the mastic tape will expand some when it's hot, and it will ooze out the seams and stick to anything it touches if the tape doesn't contain it.

done properly you can make a connection that will stay completly air tight in 100mph wind and rain / sleet storms and easily last for 5-10 years without worry (or even if fully submerged for a few months, maybe longer). Plus if you didn't skip the bottom layer of tape, it will peel off and leave little to no residue on the connector when you need to disconnect it.
06-23-2009 07:16 AM
sailingdog Butyl tape is one of the most versatile, simplest, and least expensive sealants to use above the waterline. IMHO, due to the fact that many chemicals can attack it, it should not be used in underwater applications. However, it does not provide much in the way of adhesive strength, and there are certain applications where the adhesive strength of another sealant may make more sense.
Quote:
Originally Posted by Survivor View Post
I am noticing other questions about butyl tape. What applications are you using it for. Can it be used to seal chainplates and stantions and other drilled holes topside?

Harris
06-23-2009 04:37 AM
jarcher
Quote:
Originally Posted by Survivor View Post
I am noticing other questions about butyl tape. What applications are you using it for. Can it be used to seal chainplates and stantions and other drilled holes topside?

Harris
I used it for all this and car tracks as well. MaineSail's and Sailing Dog's advice is outstanding on butyl tape.
06-23-2009 03:11 AM
JomsViking Yes it can
Mainesail has written a lot about how to use butyl tape here on sailnet, just search for it. He also has a very impressive DIY section on his own website.
06-23-2009 02:54 AM
Survivor
Question about butyl tape

I am noticing other questions about butyl tape. What applications are you using it for. Can it be used to seal chainplates and stantions and other drilled holes topside?

Harris

 
Posting Rules
You may post new threads
You may post replies
You may post attachments
You may edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On


All times are GMT -4. The time now is 12:43 PM.

Add to My Yahoo!         
Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
SEO by vBSEO 3.6.1
(c) Marine.com LLC 2000-2012

The SailNet.com store is owned and operated by a company independent of the SailNet.com forum. You are now leaving the SailNet forum. Click OK to continue or Cancel to return to the SailNet forum.