This X-Treme self-amalgamating tape more nearly approaches magical than any other product I have used. Buy it! I can't imagine you will be disappointed.
My applications are in protecting weather-exposed RF connectors and other amateur radio antenna parts, and for those uses it's perfect. In ham radio, it's a natural for protecting any two mating surfaces you can wrap it around: PL-259 to SO-239, N-types, barrel connectors, bulkhead connectors and the like. It's perfect for sealing element-to-wave-trap junctions and great for use on wire antenna halyard lines. Think of it as somewhat functionally similar to heat-shrink tubing that doesn't require heat.
I have used several rolls of X-Treme tape. I won't be without it. I can offer these observations from lots of satisfying experience:
As intended, X-Treme tape sticks only to itself. That's how it works. Don't buy it expecting to use it like ordinary tape to stick something to something else. It won't.
Read and follow the instructions. This is important. Even if you aren't an instruction-reading type, read these; you'll be glad you did. The manufacturer has great instructional videos and they are on point.
For your first use, you will be well advised to cut off a short section of tape and remove the backing as you wrap. If it's too short, just add more. With practice---and depending on the shape and size of your workpiece and on the clearance around it---you may be able to cut off a long section of tape and remove the backing before you begin to wrap.
Because of X-Treme tape's remarkable quality of sticking only to itself, be sure to make a complete first wrap before you begin any diagonal overwrapping. For your last wrap, be sure the end of the tape is in complete contact with the tape you've just applied, or you will have a flying end that doesn't stick to your workpiece.
Don't tension the initial or final wrap. Do tension all wraps after the first and before the last. The manufacturer cautions not to reposition the product more than two minutes after application. In my experience, you better take care of any repositioning needed within seconds of application or you'll be too late.
To promote rain runoff, overlap your wraps in the style of roof shingles, working from a lower point to a higher point.
X-Treme tape is beautifully conformable and somewhat forgiving in application. Its self-fusing quality and triangular cross-section allow ridges to disappear. Your overlaps can be imperfect and you can still achieve a smooth, nice looking result.
You can overwrap a cured seal with electrical tape for additional abrasion resistance, but you won't need to for UV protection. X-Treme tape already is resistant to UV damage. I have had X-Treme tape exposed to the elements 24/7 for several years without any visible degradation. And in cases where I eventually removed the wrap, the fittings underneath were clean, dry and still looked new.
Remove the cured product by slicing it with the tip of a sharp utility knife. It comes off cleanly and leaves absolutely no residue. None! For my uses, that's among its best properties.
This is one of those rare products that I can recommend with absolute confidence. Buy it, follow the instructions and be prepared to be amazed.
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Amazon's Choice
Frequently bought together
This item: X-Treme Tape MOCAP Heavy Duty Electrical Tape, Self-Fusing Silicone Rubber, Waterproof & Insulating Flexible Tape, Electrical for Hose, Automotive, Outdoor & Repairs - 1" x 10ft Roll - Black
$5.99
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$17.95 ($1.20/feet)
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From the brand
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Looking for a tape that’s tough enough to handle your biggest repair challenges? MOCAP X-Treme Tape is your answer! Whether it’s for automotive fixes, sealing pipes, or tackling outdoor repairs, this heavy-duty self-fusing silicone rubber tape has you covered. It bonds to itself, creating a waterproof, airtight seal that holds strong under pressure—perfect for all your projects!
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AUTOMOTIVE REPAIR
Fix hoses, leaks, and wires in your car with MOCAP X-Treme Tape. Its self-fusing, waterproof design creates a strong, lasting seal.
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ELECTRICAL REPAIR
Insulate, seal, and secure electrical components with MOCAP X-Treme Tape. Airtight and moisture-resistant, perfect for repairs.
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X-treme Tape
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HIGH TEMPERATURE MASKING
Withstands extreme heat, perfect for high-temperature masking. Resists temperatures from -80°F to 500°F for reliable performance.
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AIR LEAK REPAIR
Seal air leaks quickly with X-Treme Tape. Its self-fusing properties provide an airtight seal that prevents leaks in tough environments
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X-treme Tape
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PLUMBING REPAIR
X-Treme Tape is ideal for plumbing leaks. Seal pipes or secure fittings with its strong, waterproof seal that holds up under pressure.
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AVAILABLE IN COLORS AND SIZES
Choose the right MOCAP X-Treme Tape for your project. Available in various colors and sizes, perfect for small repairs or larger jobs.
Tape that works!
My MacBook charger was starting to get frayed. I’d plug it in and the battery would be “plugged in” but not “charging”. I refuse to waste $80 buying yet another power adapter so I did some research which suggested silicon tape over electric tape. Ordered this and have been really pleased. First time using silicon tape, instructions come with it. Not too tricky because the “tape” isn’t sticky at all in your fingers but it sticks to itself. I did a bit of a hack job because I was impatient, but it worked, and my computer now charges again, so I’m happy. I overestimated how much tape I’d use the first time but a little bit goes a long way. Apple cords and wires seem to have an uncanny ability to fray and fall apart the second AppleCare expires, so I’m sure I’ll be using this more in the future.
Top reviews from the United States
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- Reviewed in the United States on March 16, 2024Color: BlackSize: 1" wide x 10 ft longVerified Purchase
- Reviewed in the United States on April 4, 2025Color: Black - 1" WideSize: 1" wide x 36 ft longVerified Purchase
- Reviewed in the United States on March 25, 2023Color: Black - 1" WideSize: 1" wide x 36 ft longVerified Purchase
- Reviewed in the United States on April 16, 2020Color: Black - 1" WideSize: 1" wide x 36 ft longVerified Purchase
Top reviews from other countries
- Mr. M. BReviewed in the United Kingdom on June 2, 2017
Great for fixing leaky pipes, with out any fuss or mess.
Color: BlackSize: 1" wide x 10 ft longVerified Purchase -
Fanch44Reviewed in France on April 18, 2018
Pas au TOP
Color: BlackSize: 1" wide x 10 ft longVerified Purchase - mrOllReviewed in Canada on July 19, 2023
Fast & Easy
Color: Black - 1" WideSize: 1" wide x 36 ft longVerified Purchase -
Michael SchaaReviewed in Germany on January 26, 2020
Mittelmäßig
Color: BlackSize: 1" wide x 10 ft longVerified Purchase -
Michel D.Reviewed in Canada on January 21, 2021
Efficace
Color: Black - 1-1/2"Size: 1-1/2" wide x 36 ft longVerified Purchase
