Best Electrical Tape for Outdoor Use: 4 Tapes Compared
All four vinyl electrical tapes for outdoor use, compared by width, length, voltage rating, temperature range and listing.
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Top picks at a glance
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- 1
Best OverallRED WOLF Vinyl Tape9.7/10View on Amazon - 2
Best for HeatMaxwel Electrical Tape9.6/10View on Amazon - 3
Best Premium3M Scotch Super 889.6/10View on Amazon - 4
Best Pack ValueSWRT Electrical Tape9.6/10View on Amazon
A trailer light wire rubbed through on a sharp edge, and the bare copper needs a wrap that holds through rain and sun. The best electrical tape for outdoor use stays stuck, keeps water out and stands up to UV, so the repair lasts. This guide compares the tapes by width, length, voltage rating, temperature range and listing.
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Quick picks
- Best Overall RED WOLF Vinyl Tape: UL and CSA listed, 7 mil thick, 600V rated, three rolls of 1 in tape. Check price on Amazon
- Best for Heat Maxwel Electrical Tape: Flame retardant, all weather, up to 221F, with a 12 month replacement term. Check price on Amazon
- Best Premium 3M Scotch Super 88: Premium grade vinyl, 0 to 221F, UV and chemical resistant, heavy duty. Check price on Amazon
- Best Pack Value SWRT Electrical Tape: Six rolls of 66 ft tape, 600V rated, flame retardant, UV and moisture resistant. Check price on Amazon
Picks for the garage
RED WOLF Vinyl Electrical Tape 1"-66Ft 3 Pcs
A UL and CSA listed vinyl tape, 7 mil thick and rated 600V, in three rolls of 1 in by 66 ft tape with a rubber based adhesive.
Pros
- UL and CSA listed, RoHS 2.0 compliant
- 7 mil thick, rated 600V, flame retardant
- Tensile strength up to 15 pounds, 200% elongation
- Three rolls of 1 in by 66 ft tape
Cons
- Spec table states 10 items while title and bullets state 3 rolls
- No warranty term is stated in the listing
- Continuous operating temperature 176F, below the 221F stated by the 3M and Maxwel listings
- No stated resistance to alkalis or acids, which the 3M listing states
Electrical Tape Black Waterproof Electric Tape
A professional grade vinyl tape in two rolls of 3/4 in by 65 ft, flame retardant and rated under 600V, with a 12 month replacement term.
Pros
- Flame retardant, waterproof and weatherproof to 221F
- 12 months replacement available
- Resists UV, abrasion, corrosion, acid and alkali
- Two rolls of 3/4 in by 65 ft tape
Cons
- No UL, ETL or CSA listing is stated
- No thickness is stated in the listing
- No tensile strength is stated in the listing
- No pack dimensions are stated in the listing
3M Scotch Super 88 Electrical Tape
A premium grade vinyl tape, 3/4 in by 44 ft, flame-retardant with a stated range of 0 to 221F and a rubber resin adhesive.
Pros
- Flame-retardant, rated 0 to 221F
- Resists abrasion, moisture, alkalis, acids and corrosion
- Rubber resin adhesive with PVC backing
- Premium grade, thicker and conformable for a smooth wrap
Cons
- One roll of 44 ft, less length than the multi-roll packs
- No voltage rating is stated in the listing
- Listing states industrial and occupational use only, not for consumer sale or use
- No warranty term is stated in the listing
SWRT 6 Pack Black Electrical Tape Waterproof
A six-roll pack of black PVC tape, 0.75 in by 66 ft per roll, flame retardant and rated under 600V for all weather use.
Pros
- Six rolls of 0.75 in by 66 ft tape
- Rated under 600V, flame retardant
- Resists moisture, UV and abrasion
- Strong adhesion on a variety of surfaces, as the listing states
Cons
- No temperature range is stated in the listing
- No thickness is stated in the listing
- No warranty term is stated in the listing
- Title states high temp with no stated temperature range
Compared on paper
| Model | Shop Score | Size | Pack | Voltage | Temp Range | Thickness | Listing |
|---|---|---|---|---|---|---|---|
| RED WOLF Vinyl Tape | 9.7/10 | 1 in x 66 ft | 3 rolls | 600V | 176F | 7 mil | UL, CSA |
| Maxwel Electrical Tape | 9.6/10 | 3/4 in x 65 ft | 2 rolls | Under 600V | Up to 221F | Not stated | Not stated |
| 3M Scotch Super 88 | 9.6/10 | 3/4 in x 44 ft | 1 roll | Not stated | 0 to 221F | Not stated | Not stated |
| SWRT Electrical Tape | 9.6/10 | 0.75 in x 66 ft | 6 rolls | Under 600V | Not stated | Not stated | Not stated |
Specifications are manufacturer rated, as published on each listing and collected 1 November 2026.
How the points were given
Each tape is scored out of 10 on performance, build, value, safety and warranty, with the weights published on our How We Pick page. A UL or CSA listing earns the most safety points; flame retardant and a stated temperature range earn some.
| Product | Shop Score | Perf. /35 | Build /25 | Value /25 | Safety /10 | Warranty /5 |
|---|---|---|---|---|---|---|
| RED WOLF Vinyl Tape | 9.7 | 32 | 22 | 21 | 9 | 0 |
| Maxwel Electrical Tape | 9.6 | 30 | 21 | 20 | 5 | 2 |
| 3M Scotch Super 88 | 9.6 | 32 | 22 | 18 | 7 | 0 |
| SWRT Electrical Tape | 9.6 | 29 | 20 | 22 | 5 | 0 |
Scores run from 9.2 to 9.8: each product’s point total is placed on that range, so more points always means a higher score.
What the listings tell you
We read 16 electrical tape listings. The listings vary on width, length and pack size, and on whether they state a temperature range, a thickness or a warranty term. The four picks below all state flame retardant and outdoor use.
How to choose the best electrical tape for outdoor use
Width and length
The SWRT, 3M and Maxwel rolls are 3/4 in wide, and the RED WOLF roll is 1 in wide. Length runs 44 ft on the single 3M roll and 65 ft or 66 ft on the multi-roll packs. A wider roll covers a splice in fewer wraps, and a longer roll covers more jobs before it runs out.
Voltage rating
The SWRT, RED WOLF and Maxwel listings state a 600V rating. The 3M listing states low voltage primary and secondary insulation without a voltage figure. Match the rating to the circuit the tape will cover, and use a licensed electrician for mains work.
Weather, UV and temperature
All four listings state outdoor or all weather use with UV resistance. The 3M listing states a range of 0 to 221F, the Maxwel listing states up to 221F, and the RED WOLF listing states a continuous operating temperature of 176F. The SWRT listing states no temperature range, even though its title states high temp.
Thickness and listing
The RED WOLF listing states 7 mil thickness and a UL and CSA listing, the only listing here with either. The 3M listing states a thicker, heavy duty tape without a thickness figure. No other listing states a thickness or an electrical listing.
Pack size
The SWRT pack holds 6 rolls, the RED WOLF pack 3 rolls, the Maxwel pack 2 rolls and the 3M listing 1 roll. A multi-roll pack suits a garage that tapes often, while a single roll suits a one-off repair.
After the wrap, see how to use an automotive multimeter to check the repair.
Use rated jack stands on solid ground, wear eye protection with power and air tools, keep fuel-burning equipment out of a closed garage, and follow the manual for every tool. Read our Safety Disclaimer.
Garage Fit Check
- Check the roll width before the first job: the SWRT, 3M and Maxwel rolls are 3/4 in wide, and the RED WOLF roll is 1 in wide.
- Check the pack size on arrival: the SWRT pack holds 6 rolls, the RED WOLF pack 3 rolls, the Maxwel pack 2 rolls and the 3M listing 1 roll.
- Match the tape to the circuit: the SWRT, RED WOLF and Maxwel listings state a 600V rating, while the 3M listing states low voltage primary and secondary insulation.
- Check the stated temperature range before using a roll outdoors: the 3M listing states 0 to 221F, the Maxwel listing states up to 221F, and the RED WOLF listing states a continuous operating temperature of 176F.
FAQ: garage tools
When should I use electrical tape?
Use it to insulate and protect wire connections and splices, indoors or outdoors. All four listings state outdoor or all weather use, and the SWRT listing states it is for professional and DIY electrical projects.
How do I fix a cut wire with electrical tape?
The listings state the tapes are for electrical repairs and installations, wire wrapping and cable jacketing. Tape covers the repair for insulation and moisture protection, and the 3M listing states low voltage primary and secondary insulation. For mains work, use a licensed electrician.
How do I use electrical tape with wire nuts?
None of the four listings states wire nut use. The tapes are listed for insulation, wire wrapping and cable jacketing, and the RED WOLF listing states waterproof sealing for wrapped connections.
Can I use electrical tape outside?
Yes. All four listings state outdoor or all weather use with UV resistance. The 3M listing states a range of 0 to 221F, the Maxwel listing states up to 221F, and the RED WOLF listing states a continuous operating temperature of 176F.
What does the 600V rating mean?
The SWRT, RED WOLF and Maxwel listings state a 600V rating, which is the voltage the tape is rated to insulate. The 3M listing states low voltage primary and secondary insulation without a voltage figure.
Related: the how to use an automotive multimeter guide, the best automotive multimeter and our diagnostics and electrical hub.
