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3M Temflex 165 Electrical Tape: When General-Use Vinyl Tape Fits

Electrical tape is easy to toss into a cart, but the right choice depends on the job. 3M Temflex 165 is not the premium tape for every harsh environment. It is a general-use vinyl electrical tape for everyday wrapping, marking, bundling, and low-voltage insulation work where the application matches 3M's published limits.

For a buyer, that distinction matters. If you need a dependable shop roll for routine vehicle, trailer, equipment, home-shop, or wire-harness cleanup work, Temflex 165 can make sense. If the job is high heat, critical splicing, continuous outdoor exposure, or a code-controlled repair, verify the required tape grade first.

What Parts Universe lists

Parts Universe currently lists this item as 3M 165 Temflex Vinyl Electrical Tape, 3/4 in x 60 ft, Black, 1 Pack. The active Shopify product record verified for this article shows:

  • Parts Universe SKU: MMM-165
  • UPC: 076308925680
  • Current Parts Universe price: $1.99
  • Current inventory: 12101 units
  • Current status: active and available for sale
  • Current product image: active Shopify product image used as this article's cover

What 3M verifies

3M identifies 3M Temflex Vinyl Electrical Tape 165 as a 6 mil vinyl insulating tape made from polyvinyl chloride. 3M describes it for cable jacket repair, harnessing and bundling cables, phase identification, wire fishing, and mechanical protection on splices rated up to 600V.

3M's product page lists the operating temperature range as 19 degrees F to 194 degrees F per CSA-C22.2 No. 197 standards. It also lists the tape as flame-retardant and says it meets CSA Certified, UL 510 Listed, and RoHS Compliant specifications.

3M's general-use Temflex page gives the buying context: Temflex 165 is for protective jacketing, harnessing, marking, and insulating low-voltage cables in non-critical applications. The same page says Temflex 165 is designed for installations down to 32 degrees F, and notes that the black tape can turn slightly gray when stretched as a tension cue.

When Temflex 165 is the right buy

  • You need a general-use black vinyl electrical tape roll for low-voltage wire wrapping, marking, cable bundling, or protective overwrap.
  • You want a compact 3/4 inch x 60 foot roll for a toolbox, trailer kit, shop drawer, or vehicle electrical project.
  • The work is light to moderate indoor or weather-protected outdoor use, not a severe-environment or permanent-exposure repair.
  • You can follow 3M's wrapping guidance, including half-lapped layers and a final wrap without tension to reduce flagging.

When to step up or stop

Temflex 165 is useful general-purpose tape, but it should not be treated as universal electrical repair material. Step up to the tape, splice kit, heat-shrink, connector, or harness repair specified by the equipment maker when the repair is safety-critical, continuously wet, fuel-exposed, engine-bay high-heat, high-voltage, structural, or governed by electrical code.

If insulation is burned, brittle, oil-soaked, chewed through, or corroded under the jacket, tape may only hide a bigger repair. Find and correct the failed wire, terminal, connector, or routing problem first, then use tape only where it is appropriate for the finished repair.

Buyer checks before ordering

  • Confirm the roll size you want: this Parts Universe listing is the black 3/4 inch x 60 foot single-pack item.
  • Match color to the job. Black is common for general wrapping; other colors are often chosen for marking or phase identification.
  • Check the required temperature, voltage, exposure, and listing requirements for your project.
  • Do not use tape alone where a sealed connector, solder sleeve, crimp, mastic, conduit, loom, or heat-shrink repair is required.

Practical safety notes

  • Disconnect power before working on wiring, and verify the circuit is de-energized before touching conductors.
  • Do not tape over damaged live circuits, overheated conductors, loose terminals, or unknown wire faults.
  • Keep wraps smooth, clean, and dry; dirt and oil reduce adhesion.
  • Follow vehicle, equipment, and electrical-code requirements where they apply.
  • Use 3M's current instructions and the product packaging as the authority for final application details.

Related Parts Universe links

3M Temflex 165 is a smart buy when the job calls for a general-use vinyl tape, the exposure is within 3M's documented range, and the repair does not need a more specialized electrical product. Start with the application requirements, then choose the tape.

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3M Electrical Tape Guide 2026: Series 165, Temflex & Scotch 33+ Compared

Electrical tape seems simple - but using the wrong type for the wrong application leads to tape that unravels, melts, fails to insulate, or allows moisture ingress. 3M makes the most trusted electrical tapes in the world. Here's how their lineup breaks down.

3M Electrical Tape Series Explained

3M Scotch Super 33+ (Professional Standard)

The gold standard for electrical insulation tape. Used by electricians and automotive technicians worldwide. The "33+" designation means it exceeds UL 510 requirements.

  • Material: Premium vinyl, 7 mil thick
  • Temperature range: -18�F to +220�F
  • Voltage rating: 600V (UL listed)
  • Dielectric strength: 1,000V/mil
  • Elongation: 200% - stretches and conforms to irregular shapes
  • Best for: Professional automotive wiring, wire splices, harness repair, junction box insulation
  • Colors available: Black, red, white, yellow, blue, green, orange, gray, violet, brown

3M Temflex 1700 (General Purpose)

The everyday workhorse electrical tape. Good performance at a lower price point than Super 33+. Suitable for general indoor/outdoor wiring up to 600V.

  • Material: Vinyl, 7 mil thick
  • Temperature range: 0�F to +176�F
  • Voltage rating: 600V
  • Best for: General household wiring, wire bundling, color coding, temporary repairs
  • Not ideal for: Underhood automotive use (temperature range too low), prolonged outdoor exposure

3M Series 165 Electrical Tape

A premium, highly conformable vinyl tape designed for demanding applications where the tape must stretch and conform tightly without leaving gaps. The 165 series has exceptional cold-weather performance - remains flexible and adheres at low temperatures where standard vinyl tapes become brittle.

  • Material: Highly plasticized vinyl
  • Temperature range: -40�F to +221�F
  • Cold weather performance: Superior - remains pliable at sub-zero temperatures
  • Conformability: Excellent - wraps tightly around connectors, terminal ends, and irregular shapes
  • Best for: Automotive underhood wiring in cold climates, trailer wiring in northern states, outdoor electrical connections exposed to winter weather

3M Scotch 88 (High-Performance)

The highest-performance standard vinyl electrical tape in 3M's lineup. Thicker (8.5 mil) and stronger than Super 33+ with a wider temperature range. The choice when you need maximum insulation and durability.

  • Material: Premium vinyl, 8.5 mil thick
  • Temperature range: -18�F to +221�F
  • Voltage rating: 600V (UL listed to 1000V/mil)
  • Best for: Primary insulation applications, motor lead insulation, transformer coil wrapping, demanding industrial use

3M Scotch 130C Linerless Rubber Splicing Tape

Not a vinyl tape - this is a self-amalgamating (self-fusing) rubber tape for high-voltage splicing. Creates a waterproof, pressure-resistant insulation mass that bonds to itself without adhesive. Used with Scotch 88 or 33+ as an overwrap.

  • Voltage rating: Up to 69kV (high voltage applications)
  • Best for: Underground cable splices, marine wire connections, any splice where waterproofing is critical

Comparison Table

Tape Thickness Temp Range Best Use
Temflex 1700 7 mil 0�F to 176�F General purpose
Super 33+ 7 mil -18�F to 220�F Professional automotive/electrical
Series 165 7 mil -40�F to 221�F Cold climate, high conformability
Scotch 88 8.5 mil -18�F to 221�F Heavy duty insulation
130C Rubber 30 mil -20�F to 194�F Waterproof splicing

Automotive Wiring Best Practices with Electrical Tape

  • Always use heat shrink first for wire splices - electrical tape alone is not sufficient for underhood or outdoor automotive connections
  • Stretch slightly when wrapping - tension activates the adhesive and creates a tighter, more moisture-resistant seal
  • Overlap each wrap by half - no gaps means no moisture entry points
  • Use Super 33+ or Series 165 for anything underhood - Temflex will melt or unravel in high heat zones
  • Color code your circuits - use colored tape at wire ends for easy identification during future repairs

Shop 3M Electrical Tape

We carry 3M Temflex 1700, Scotch Super 33+, Series 165, Scotch 88, and specialty electrical tapes in multiple colors and roll sizes.

Shop 3M Electrical Tape ?

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