Good deal on butyl (self-vulcanizing) repair tape - SailNet Community
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post #1 of 12 Old 10-11-2010 Thread Starter
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Good deal on butyl (self-vulcanizing) repair tape

This afternoon I found butyl self-vulcanizing repair tape in the "as seen on tv" section of Walgreens. Under the brand name "Mighty Fix It Tape", the pack is three 10' rolls for $9.99, one each red/yellow/blue.

CORRECTION: It's SILICONE TAPE! Even better for many purposes.

If you're used to getting butyl tape in the hardware stores, it can run close to that much for just one roll. So while I'd suspect this may be thinner or something, ten bucks for thirty feet is a find!

(Self-vulcanizing butyl tape has no adhesive and peels off clean, but when you stretch it out over itself and wrap it, it takes about 24 hours to fuse into one mass, becoming a waterproof seal in the process. Great way to fix leaks and waterproof bilge splices, when used properly and given time to set.)

I don't work for Walgreen's or the tape company--but at this price, it pays to stock up on some, or try it if you never have before.

Last edited by hellosailor; 10-23-2010 at 03:18 PM.
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post #2 of 12 Old 10-11-2010
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I just ordered some of this last week. The price seemed right, and the stuff I got looks like the stuff I want, but I've never used it so what do I know... I'm planning on using it for rebedding deck hardware and the sea hood, and also sealing the chainplates.

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post #3 of 12 Old 10-11-2010 Thread Starter
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I'm not sure that the bedding tape is the same as the self-vulcanizing stuff. Try a wrap of it, and let me know? After it sets up 24 hours?
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post #4 of 12 Old 10-11-2010
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I'm increasingly believing we're talking about two different things. My apologies if that is the case. I thought the point of butyl was that it never "sets", it always remains as flexible as the day it was put on. What sort of use would involve wrapping it around itself?

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post #5 of 12 Old 10-11-2010
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The good stuff works on Split Bolt Connectors connecting electric motors and such BUT its more of a land thing


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post #6 of 12 Old 10-11-2010
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My dad a ww2 trained RAF mechanic refered to this as self amalgamating tape which was used by both RAF and USAF for both electrical insulation and emergency repair work on aeroplanes.
Often used by plumbers for temporary pipe repairs and has similar uses on boats.
Wrapped over itself it amalgamates into a flexible waterproof and pressure resistant mass.
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post #7 of 12 Old 10-12-2010
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He's talking about the Chinese version of Rescue Tape.
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post #8 of 12 Old 10-12-2010
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I thought the Rescue Tape type tapes were silicone.

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post #9 of 12 Old 10-13-2010
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I don't know, but they work well.
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post #10 of 12 Old 10-13-2010
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The self-fusing rigging/repair tapes—like Rescue Tape, Rubbaweld Tape—are silicone tapes. IIRC, there are butyl self-fusing tapes that are used in areas like radio equipment, but they don't look anything like the silicone self-fusing tapes.

Then there is butyl tape which is used for bedding hardware, which is really not a tape at all but called BUTYL "TAPE" since it comes in a roll, but it is really a flat ribbon of butyl sealant compound.

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