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3M Super33+

Premium electrical tape (single roll)

4 Reviews

Item # 120SPR33

In Stock

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Product Highlights:

  • single roll of premium electrical tape (3/4" x 52 feet)
  • can be used as electrical insulation for all wire and cable splices rated up to 600 volts
  • has excellent resistance to abrasion, moisture, acid, copper corrosion, and sunlight
  • UL-listed (UL 510 Standard "Insulating Tape")
  • flame retardant with temperature rating up to 176°F
  • 3/4" x 52 feet
  • thickness: 7 mils
  • warranty: 1 year
  • Our 60-day money-back guarantee

What's in the Box:

  • 1 Roll of black vinyl eletrical tape

Best tape on the market!

john henry, Kalamazoo, MI


3M Super33+ Reviews

Average Customer Review(s):

(4 Reviews)

3M Super33+

john henry from Kalamazoo, MI on 7/3/2018

Crutchfield Customer Review (What's this?)

Best tape on the market!



Seriously good tape

Sean from St Louis, MO on 2/5/2018

If you think "any ol' electrical tape is electrical tape", this tape will prove you wrong. It's stretchier, more resilient to temperature changes, and longer lasting than cheap stuff by a long shot. Totally worth it in any application that you will be dealing with again. I've used this for a broad range of applications, and it holds up better than cheaper products. Quality adhesive and the tape itself resists becoming brittle and cracking like cheap tape. You won't regret the few extra dollars for the roll.

Pros: Stretchy, durable, UV/temp resistant


The definition of electrical tape.

Crutchfield customer from New Canaan, CT on 12/17/2017

Crutchfield Customer Review (What's this?)

The real deal. Sticky, Non-conductive. Comes in a decent case so it won't get dirty/grungy. If you are thinking of electrical tape, you are probably thinking of exactly this.



Great Tape

Karl from Corpus Christi, TX on 5/18/2016

Crutchfield Customer Review (What's this?)

I love this electrical tape and Crutchfield has it for a great price, win-win!

Pros: Works great, great price


Q & A

Customer Q&A

Crutchfield asked  
Why did you buy this?

Known Quality [ John  Dec 05, 2018 ]
I needed a new roll of high quality electrical tape. It allowed to me make my account have 252 reward points. Just enough to redeem for next time. [ Andrew  Jul 28, 2018 ]
there are plenty of crap brands, this is not those. never seem to have enough electrical tape when i need it. ends up being used for much more than electrical purposes. wrapping it around door internals quiets some of the clatter associated with cheaper cars; makes opening and closing have a more premium feel. if putting decent power to your door speakers you'll want to do some basic deadening at a minimum, otherwise you'll have rattles for sure. [ Jason  May 16, 2018 ]
Excellent product [ Jose A.  Apr 11, 2018 ]
Because I need better sound in my car [ Lance Joseph  Dec 02, 2017 ]
I need to re wrap my amp harness I tapped into for my back speakers [ Jeremy  May 18, 2017 ]
3m is my favorite producer of electrical tape [ JIMMY  May 01, 2017 ]