3M Scotch® 22 – Heavy Duty Vinyl Electrical Tape

Scotch® Heavy Duty Vinyl Electrical Tape 22 is a premium-grade, 0.25 mm thick vinyl insulating tape designed for continuous performance in ambient temperatures up to 80°C. It remains conformable for cold-weather applications down to -10°C and offers excellent resistance to abrasion, moisture, alkalis, acids, corrosion, and varying weather conditions. The elastic PVC backing combined with an aggressive rubber-based adhesive provides moisture-tight electrical and mechanical protection with minimal bulk. The tape is UL Listed, CSA Certified, and VDE approved for IEC 60454-3-1-2/F-PVC P/60. 

Key Features 
• Polyvinyl chloride (PVC) backing 
• Pressure-sensitive rubber-based adhesive 
• Compatible with solid dielectric cable insulations 
• Inhibits corrosion of electrical conductors 
• Suitable for indoor and outdoor applications 
• Enhanced mechanical strength and flexibility 
• Provides extra protection against abrasion 
• Cold and flame-resistant (per UL 510)

Applications
• Primary electrical insulation for all wire and cable splices rated up to 600V and 80°C
• Primary insulation for 600V bus applications and protective jacketing for low- and highvoltage bus connections
• Protective jacketing for high-voltage cable splices and repairs
• Harnessing and bundling of wires and cables

User Information
Scotch® Heavy Duty Vinyl Electrical Tape 22 uses a PVC backing with a rubber-based,
pressure-sensitive adhesive. It is UL Listed and flame-retardant, maintaining physical
stability between -10°C and 38°C for both indoor and outdoor applications. The tape
remains stable without telescoping more than 2.54 mm at temperatures below 50°C.

Shelf Life and Storage
Scotch® Tape 22 has a 5-year shelf life from the date of manufacture when stored in a
controlled environment (10°C to 27°C, <75% relative humidity). 

Engineering and Installation Guidance
For primary insulation of 600V wire rated 80°C and below, apply a minimum of two halflapped layers of Scotch® 22 tape. For connectors with irregular surfaces, use 3M™
Scotchfil™ Electrical Insulation Putty or Scotch® Linerless Rubber Splicing Tape 130°C
before applying Scotch® 22. When used as outer jacketing, overwrap rubber or
thermoplastic splices with at least two half-lapped layers of Scotch® 22.
Apply the tape with firm tension (reducing width to ~5/8 of its original) in half-lapped
layers, wrapping from smaller to larger diameters. End wraps should be applied with
minimal tension to prevent flagging.

Technical Properties
Colour:
Black

Thickness:
0.25 mm

Temperature Rating (UL 510 / CSA C22.2  - No.197-M1983):
80°C

Adhesion to Steel (22°C):
2.2 N/10 mm

Adhesion to Backing (22°C):
2.2 N/10 mm

Breaking Strength (22°C):
35 N/10 mm

Ultimate Elongation:
200%

Flagging:
<2.5 mm

Telescoping (24 hrs @ 50°C):
<2.5 mm

Flammability (UL 510):
Pass

Voltage Rating (UL 510):
600V

Dielectric Breakdown:
12kV (Standard Condition)

Dielectric Breakdown – High Humidity:
90% of Standard

Insulation Resistance:
>1 × 10⁶ megohms