XFasten Butyl Sealing Tape

Curated from 111 real Reddit conversations

Refreshed on: March 17, 2025

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XFasten Butyl Sealing Tape

Brand: XFasten
Price: $15
Snoop Score:
8.7
Sentiment
7.9
Popularity
8.3
Technical
9.2
Buy on Amazon for $15See All Butyl Tape Reviews
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Snoop's Take

The XFasten Butyl Sealing Tape is a versatile sealing solution designed for various applications including construction, automotive, and marine use. It is made from synthetic EDPM rubber, making it resistant to water, chemicals, and extreme temperatures, and can be easily applied to multiple surfaces for effective sealing. Consumer feedback highlights its effectiveness in creating a watertight seal, with users noting, "It stopped the leak and was WAY easier to use underwater than the putty goop." Many users appreciate its versatility and reliable performance in wet locations, stating that it works well for temporary fixes. However, some users found it challenging to work with under certain conditions, commenting that "that butyl tape will make you hate life when you go to patch it in the spring." Overall, the XFasten Butyl Sealing Tape is recommended for its category, particularly for those needing a reliable sealing product in moisture-prone areas. Its strengths in preventing leaks and versatility outweigh some of the difficulties users have experienced during application.

Not for you? Check out our other rated Butyl Tape

Odd, I used this exact stuff and had great luck with it.

Positive Feedback

I wouldn’t recommend it. It was too soft, melted too easy I had to put it in the freezer to be able to use it.

Negative Feedback
Product
8.7
XFasten Butyl Sealing Tape
Buy on Amazon for $15
RV and Trailer Sealing
9 / 10
Automotive Repairs
9 / 10
Marine Applications
9 / 10
Construction and Home Improvement
9 / 10
See how this compares to all Butyl Tape

What it does well!

Key strengths users can’t stop talking about.
Good luck using the tape in cooler temperatures
“Odd, I used this exact stuff and had great luck with it.”➕
Versatile sealing solution for various applications
“used roughly 10 - 12 ft. of tape used XFasten for this door, easy to work with, was sticking well.”➕
“Wasn't sure name of it but figured multipurpose.”➕
“Yes. Great stuff.”➕
“Yes, it should.”➕
Creates a watertight seal to prevent leaks
“I was told the joist tape self seals.”➕
“So having this on top of my joist keeps water every morning from touching my joist.”➕
“It's tricky. It's not 100 silicone. It's All Purpose Silicone, 100% waterproof!”➕
Reliable for wet locations
“the ones that were have at least another decade in them.”➕
Butyl tape is preferred for marine applications
“butyl is king, make sure you buy the right butyl, im talking about marine butyl thats gray from bed-it.”➕
“I like that it never dries out or cures, and cleans up with mineral spirits.”➕
Creates effective seals when used correctly
“Butyl tape pushes things apart, so only if you have a strong mechanical bond like thrubolts, and never near petroleum.”➕
“Butyl is great except for around any fuel fills.”➕
Tape effectively fixed leaks
“It stopped the leak and was WAY easier to use underwater than the putty goop.”➕
“The tape fix is good.”➕
Good for temporary fixes
“Not sure how long it will last but I'm sure it's not made for underwater use.”➕
Tape is quicker, easier and safer than liquid rubber.
“Tape is quicker, easier and safer.”➕

Where it needs some work!

Areas to watch—feedback on possible improvements.
Tape is too soft and melts easily
“I wouldn’t recommend it. It was too soft, melted too easy I had to put it in the freezer to be able to use it.”➕
Difficult to work with compared to other products
“Worked perfectly and was way easier to wok with than butyl.”➕
“In my non-professional opinion, it depends on location (both climate and setting).”➕
Butyl tape is difficult to work with
“That butyl tape will make you hate life when you go to patch it in the spring.”➕
Can be difficult to work with in certain conditions
“Near impossible to remove its residue enough to make better sealants stick, and fouls paint jobs even with the slightest speck.”➕
Tape can be difficult to work with
“I just can't see this being the case.”➕
“no deck tape, or even just the tops painted with a bitumen based primer will far outlast deck tape.”➕
Difficult to apply by oneself on high surfaces.
“it was difficult to apply by myself on a 14 foot high deck.”➕

Compare On All Talked About Dimensions

Product NameImagePriceScoreCompareSee DetailsBuy Now
Crawl Space DIY Butyl Sealant TapeCrawl Space DIY Butyl Sealant Tape$39
9.8
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Better Boat Butyl Tape, RV and Marine Window Seal KitBetter Boat Butyl Tape, RV and Marine Window Seal Kit$19
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XFasten Butyl Sealing TapeXFasten Butyl Sealing Tape$15
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Second Skin Butyl Sealant TapeSecond Skin Butyl Sealant Tape$23
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TZGP Butyl Rubber Sealant TapeTZGP Butyl Rubber Sealant Tape$7
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TAGLLY Butyl Sealant Tape - 13Ft Butyl Rubber SealantTAGLLY Butyl Sealant Tape - 13Ft Butyl Rubber Sealant$9
7.3
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Rvhouse Butyl Tape White 1” x 30 FtRvhouse Butyl Tape White 1” x 30 Ft$13
7.2
DetailsBuy
XFasten Butyl Tape Black, 1/2 in x 30 ft x 1/8 inXFasten Butyl Tape Black, 1/2 in x 30 ft x 1/8 in$13
7.1
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Hanotic Joist Tape for DeckingHanotic Joist Tape for Decking$48
7.0
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JOAPRIL Butyl Adhesive Tape 2x50'JOAPRIL Butyl Adhesive Tape 2x50'$85
6.5
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Dicor BT-1834-1 Butyl Seal TapeDicor BT-1834-1 Butyl Seal Tape$13
5.6
DetailsBuy
ZOOFOX 2 Pack Butyl Seal TapeZOOFOX 2 Pack Butyl Seal Tape$19
5.3
DetailsBuy
GSSI Sealants Butyl Tape 1/8" x 1" x 100'GSSI Sealants Butyl Tape 1/8" x 1" x 100'$34
5.3
DetailsBuy
ELK Butyl Seal Tape - 1 Inch x 50 FeetELK Butyl Seal Tape - 1 Inch x 50 Feet$29
5.1
DetailsBuy
YankMooM Butyl Tape - Waterproof Sealant TapeYankMooM Butyl Tape - Waterproof Sealant Tape$7
5.0
DetailsBuy
Akexermu Butyl Sealant TapeAkexermu Butyl Sealant Tape$12
4.4
DetailsBuy
ATack Black Butyl Seal TapeATack Black Butyl Seal Tape$13
4.4
DetailsBuy
Typar Butyl Flashing Tape - 4" W x 75' LTypar Butyl Flashing Tape - 4" W x 75' L$25
4.0
DetailsBuy
Stacool 13FT Car Headlight Sealant Butyl TapeStacool 13FT Car Headlight Sealant Butyl Tape$8
3.1
DetailsBuy
Oleitodh 4 Rolls Butyl Sealant TapeOleitodh 4 Rolls Butyl Sealant Tape$32
3.0
DetailsBuy
LLPT Butyl Tape White 1 Inch x 33FtLLPT Butyl Tape White 1 Inch x 33Ft$13
2.5
DetailsBuy
TAPEBEAR Butyl Tape Waterproof Sealing TapeTAPEBEAR Butyl Tape Waterproof Sealing Tape$19
1.0
DetailsBuy
Kohree Butyl Sealant TapeKohree Butyl Sealant Tape$12
0.8
DetailsBuy
Greatshoot Butyl Tape Waterproof Sealing TapeGreatshoot Butyl Tape Waterproof Sealing Tape$6
0.5
DetailsBuy

Buyer’s Cheat Sheet

What to check before you click ‘Add to Cart.’
Debate on the necessity of using butyl tape in certain climates
“Butyl tape Is this really worth the cost and labor?”➕
“If you’re worrying about butyl then you’re probably going to be fine in the long run because you’re a smart feller.”➕
“Lol, cool. So not much need for it in Arizona huh?”➕
“Seems to me that trapping moisture between a composite decking board and joist tape isn't a problem.”➕
Preference for traditional methods over modern sealing solutions
“The real trick to longevity on a wood framed deck though? It’s adequate ventilation and mitigation of ground moisture.”➕
“Pretty sure most bitumen based paints are not UV stable.”➕
Debate on the best sealant types for specific applications
“I'm finding myself slightly confused over the above deck sealing options available and would love some clarification on when to use butyl tape, marine grade silicone, or 4200.”➕
Debate on the necessity of using sealing tapes
“I'd that was true Zip tape wouldn't exist or other sealing tapes.”➕
Discussion on alternatives to butyl tape
“It's plugged now, no more water loss.”➕

Cautionary Callouts

Know the pitfalls before they catch you off guard.
Users prefer alternatives like RTV or silicone for sealing
“Unless you have to open it up again before it cured (I did and got messy dirty) it works well and seals nicely.”➕
“I’m not sure that this tape is needed.”➕
Users prefer alternatives like Zip Tape for temporary patches
“if you do want a temporary fix, I'd use Zip Tape over something like butyl tape.”➕
Debate on using tape versus liquid rubber sealants.
“Why are we spending all this money on tape and it’s awkward to apply, when we could just roll on a coat of liquid rubber?”➕

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