Scotch 3M Super 33+ Vinyl Electrical Tape.75-in x 66-ft - Durable

In this review the Scotch Super 33+ vinyl electrical tape is evaluated for professionals and DIYers who need reliable insulation that lasts. The bottom line: this 10-roll pack is best for users who value durable, weather-resistant jacketing and strong stretchability for tight seals, since the tape is rated for protective jacketing up to 600V and stretches up to 250% without breaking. It performs well indoors and outdoors, offering flame retardant protection and high adhesion across a wide temperature range, making it a dependable choice for wiring, splices and general electrical work.

Key Features

• Insulation and protection: The tape provides protective jacketing and splice insulation up to 600V, helping protect connections against electrical faults and abrasion.
• Alltemperature adhesion: A pressure-sensitive rubber-resin adhesive keeps the tape stuck in conditions from 0F to 221F, which is useful for installations exposed to heat or cold.
• Super conformable backing: The PVC backing and high stretchability allow the tape to form a tight seal around irregular shapes and overlapped wraps.
• Durability outdoors: Strong resistance to UV rays, corrosion, alkalies and acids means the tape holds up for above- and below-grade use and outdoor environments.
• Safety and standards: The tape is flame retardant and comes with UL listing and CSA certification, offering reassurance for electrical work required to meet codes.

Who It's For

The Super 33+ is ideal for electricians, maintenance techs and serious DIYers who need a multipurpose electrical tape for both indoor and outdoor applications, including wire splices, protective jacketing and temporary repairs. The pack of 10 rolls is convenient for teams or ongoing projects where reliability and volume matter.

Those who need an ultra-thin, nonstretch adhesive for delicate electronics or who cannot tolerate any adhesive residue on finished surfaces might prefer a specialty tape - some users report occasional black residue when adhesive oozes, so surfaces that demand pristine finish may require testing first.

Pros & Cons

Pros

• Durable PVC backing and rubber-resin adhesive provide strong mechanical and electrical protection.
• High stretchability and conformability make it easy to wrap irregular splices and fittings tightly.
• Wide temperature range and UV resistance mean it works indoors and outdoors with lasting performance.

Cons

• Some buyers report mixed stickiness and occasional black adhesive residue on surfaces after prolonged contact.

Specifications

Brand	Scotch 3M
Product	Super 33+ Vinyl Electrical Tape
Size per roll	0.75 in x 66 ft
Pack quantity	10 rolls
Voltage rating	Protective jacketing up to 600V splice insulation
Temperature range	0F to 221F
Certifications	UL Listed, CSA Certified

Our Verdict

The Scotch Super 33+ is a solid, value-oriented choice for anyone who needs reliable electrical insulation and protective jacketing across a wide set of conditions. It excels at outdoor and indoor splice work thanks to its stretchability, flame retardance and high adhesion; just be mindful of possible adhesive residue on delicate finishes. For general electrical and maintenance use this pack represents dependable performance and good value.

Frequently Asked Questions

Is this tape suitable for outdoor use?
Yes. The tape resists UV, abrasion, corrosion and temperature extremes, making it suitable for outdoor applications.

Can it be used on high voltage splices?
The tape is rated for protective jacketing up to 600V splice insulation and carries UL and CSA certifications for electrical use.

Will the adhesive leave residue?
Some users report occasional black residue from adhesive oozing, so test on a small area if surface appearance is critical.