Electrical Supplies, Tape & Adhesives, Electrical Tools, Home Improvement, Electrical Tools & Test Equipment
Scotch Super 33+ Vinyl Electrical Tape (3/4 in x 66 ft, Black)
Scotch (3M)
Description
The professional-grade standard for electrical tape — rated 4.7 stars across 12,000+ reviews. Stretches up to 250% without breaking, rated for 600V splices, and performs reliably from 0°F to 221°F in any weather.

A roll of black electrical tape being wrapped around a wire splice by hand (concept image)
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Use Case Story
Electrical tape looks like a commodity item until you actually try to wrap a splice with a cheap roll that won't stretch, won't stick in the cold, or dries out and cracks within a year. Scotch Super 33+ is the roll most electricians reach for specifically because it doesn't have those problems — it's been the professional-grade standard for decades.
Here's where the difference actually shows up.
First, wire splices and terminations. Rated for primary insulation up to 600V, it's built for the actual electrical work, not just cosmetic wire bundling — and it stretches up to 250% without tearing, so it wraps tight and conforms to irregular shapes instead of leaving gaps.
Second, outdoor and temperature-extreme installs. Whether it's a cold garage in winter or a hot attic in summer, this tape is rated to perform from 0°F to 221°F without losing adhesion or becoming brittle — a common failure point for cheaper tapes.
Third, long-term reliability on jobs that need to last. UV, abrasion, corrosion, and alkali resistance mean a wrap made today is still doing its job years later, not peeling or cracking after one season outdoors.
It's a small, inexpensive item, but it's the kind of thing where the cheap version genuinely performs worse — which is exactly why this stays in almost every electrician's tool bag.
Key Features
- Stretches up to 250% without breaking for a tight, conforming wrap
- Rated for primary insulation on splices up to 600V
- All-weather performance from 0°F to 221°F (-18°C to 105°C)
- UL Listed and CSA Certified, resists UV, abrasion, corrosion, and alkalies

Close-up concept illustration of a roll of black Scotch vinyl electrical tape
Key Specs
Spec | Detail |
Size | 3/4 in x 66 ft |
Voltage Rating | Up to 600V (primary insulation) |
Stretch | Up to 250% without breaking |
Temp Range | 0°F to 221°F (-18°C to 105°C) |
Thickness | 7 mil |
Certification | UL 510 Listed, CSA Certified |
Price Range
$5 ~ $8 (single roll)
Pros
- Industry-standard, professional-grade performance for the price
- Stretches and conforms tightly without tearing
- Reliable across extreme hot and cold conditions, indoor or outdoor
Cons
- Premium price per roll compared to basic hardware-store electrical tape
- Single roll doesn't go far on larger projects — multi-packs are more cost-effective for frequent use
FAQ
Q. Can this be used outdoors?
A. Yes, it's rated for all-weather performance from 0°F to 221°F, making it suitable for both indoor and outdoor electrical work.
Q. What voltage is it rated for?
A. It provides primary electrical insulation for wire and cable splices up to 600V.
Q. How is this different from cheaper electrical tape?
A. It stretches up to 250% without tearing and resists UV, abrasion, and corrosion better over time — cheaper tapes often crack, dry out, or lose adhesion much sooner, especially outdoors.
































