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Brady Authentic (M21-187-C-342) PermaSleeve Heat Shrink Tubing for Control and Electrical Panels, Wire Harness, Black on White-For M210, M210-LAB, M211, BMP21-PLUS and BMP21-LAB Printers, .335' W 7' L

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$60.40

$ 26 .99 $26.99

In Stock

About this item

  • Made from Brady's B-342 Polyolefin PermaSleeve Marker material, a non-adhesive, heat-shrinking sleeve that fits around wires or cables for insulation and easy permanent identification
  • 3:1 heat-shrinking wire marking sleeve is ideal for labeling in harsh environments and is resistant to exposure to chemicals, grease, oil, and cleaning agents
  • Polyolefin wire marking sleeves print in black text on a white background with a smudge-proof finish
  • Permasleeve labels provide a wire marking solution that combines speed, ease of use, and permanence to create long-lasting, high quality identification
  • Compatible with the BMP21-PLUS or ID PAL label printers, permasleeve wire labels are an indispensable asset for electrical contractors, maintenance crews, construction teams, and industrial professionals.Always use official Brady labels designed for use with BMP21-PLUS, BMP21-LAB, IDPAL and LABPAL Label Printers


Brady leads the way in high performance identification solutions.
At Brady, we have a steadfast commitment to providing our customers with innovative products and identification solutions. We use customer feedback to continually design, improve, and innovate our products to serve all of your needs, from general identification solutions to custom-engineered labels.
Material developed in-house, by our experts.
Highly focused on identification solutions, Brady's team of scientists and engineers work to provide you with products of the highest technological quality. At Brady's Tobey Research Center, material scientists rigorously test all label materials in-house to ensure high performance, industry compliance, durability, and reliability.

  • More than 200 technologists in laboratory sites around the world
  • More than 20 label material patents and growing
  • Electro-mechanical, materials, and software development teams
Materials designed to last and engineered to perform.
The materials developed by Brady scientists are designed for a wide spectrum of applications and environments. Brady's in-depth knowledge of the conditions that products face requires extensive testing in harsh environments.
Our products are not only designed to withstand the harshest of environments, but also designed with the user in mind. We spend time getting to know our customers in order to understand your needs.

Ron G
2025-08-16 17:39:44
I got my new Brady permasleeve labeling, M21-187-C-342, and it works great. It fit well on shielded 22GA, 3 conductor wire and shrank to fit mil-spec 20 gauge. I am happy that it handles 3 rows of text, albeit very small after shrinking, but it’s there and clear to read. For my labeling, I find my labels are all 1" to 1 1/8", so you can get about 76 labels out of a roll at that length.They are very easy to make, apply and appear to hold up well. Recommended.
Mike in Waynesboro PA
2025-07-18 16:58:08
We use them all the time, much easier to troubleshoot with each circuit “name” right there for you.
TechforOne
2025-07-14 13:37:30
I recently labeled about 350 wires with permasleeves. This saved me from peeling the backing off that many labels and rolling them on the wire. It's not a huge time saver - unless you are producing labeled wires on a workbench with the proper gadgets to support speed. The main benefit, after not having to peel them, is how uniform and special they look. I was mostly doing 18ga MTW with a pretty thick insulation, and the fit was good. At times I had someone printing them out for me, but it would have been nice if they could open them as easily as I could, would have saved more time. This is the good news. The bad news: they can be tough to open to fit on the wire, if wire is pre-stripped the strands want to catch on the sleeve so you may need to wind them first, cannot use quick strippers if the label is already on and close to the end, the printed characters may shrink or become distorted after shrunk, when using open flame it can brown the label or burn the wire insulation, they are not as stuck in place as sticky labels so they may slip, and last but not least...they are expensive.
linda Volk
2025-07-13 14:56:27
Work well
Mericafkyeah
2025-06-19 18:04:54
These work and look great but they are very pricy. IMHO it’s worth it for building any kind of wiring harnesses. Good quality and durability. Just expensive.
Eric L Seevers
2025-06-17 10:53:02
started wiring my n-scale dcc layout and discovered the heat shrink labels. just the perfect size for labeling all my dangling lines so i know what i'm connecting to who and why.
JohnnyO.
2025-06-05 10:18:20
Regular Brady labels work well on the larger gauges of wire. This shrink tube style is perfect for the smaller gauges. Thanks!
Stuart L Philpott
2025-05-31 11:18:34
None
Mr. Martin Offer
2025-04-24 15:06:10
I won't buy non-Brady labels again. Better to spend the money on quality. The cheaper ones break and cost more in the long run
Mike
2025-03-12 10:54:14
This is a quality product and it makes my work look significantly more professional. If it were half the price, I'd give it 5 stars and order it by the case. Make sure you order the appropriate size for the gage of wire you're going to be labeling.
Customer
2025-03-02 16:18:22
Ok
Brent Kirby
2025-02-27 10:21:51
Great for identifying electrical wires
Nikola
2025-02-06 14:07:56
It's a good quality label but far too expensive for what you get. Should be 40 bucks tops, if you're planning to do a lot of labeling I would advise using another printer or getting your wires laser stamped if possible, cheaper alternative if you have a lot of wires.I've updated my review due to persistent errors on the sellers part. I typically order 3 at a time and multiple times have received 2/3 I needed and a third which is a cheap, sticker type (not the expensive shrink style). I've returned them but this is a hassle and sometimes due to work I don't manage to return in time causing the charge for the more expensive item, which I didn't receive, to be billed nonetheless.
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