Insulating Self‑Fusing Tape 3M SCOTCH 23 19 mm × 9.15 m

3M SCOTCH 23 is a self-fusing insulating tape with a width of 19 mm and a length of 9.15 m, intended for electrical insulation, sealing and protection of wires, cable joints and terminals. The tape fuses into a continuous rubbery layer that conforms to irregular shapes and does not leave adhesive residue, providing reliable moisture and corrosion protection while maintaining electrical insulation properties.

Advantages

Self-fusing construction creates a homogenous, seamless insulating layer without tacky adhesive, ensuring clean application and removal. The tape stretches and bonds to itself to form a durable, flexible rubber-like sleeve that resists moisture, corrosion and abrasion. Its compact width and roll length make it suitable for localized repairs and detailed electrical work where precise application is required.

Suitable for

• Insulating exposed wire ends, splices and terminals
• Sealing and protecting cable joints against moisture
• Temporary or permanent repairs on automotive and marine wiring
• Mechanical protection of small harnesses and connectors
• Wrapping irregular shapes and fittings where traditional tape cannot conform

Key specifications

• Material type: self-fusing rubber-based insulating tape
• Width: 19 mm
• Length: 9.15 m per roll
• Forms seamless, elastic insulating layer when stretched and applied
• Resistant to moisture and corrosion; provides mechanical protection

How to use

Cut an appropriate length of tape, stretch it slightly and wrap it around the cleaned and dried area, overlapping each turn to allow the tape to fuse to itself. For best results, maintain tension during application so the tape bonds into a continuous rubbery sleeve; avoid trapping contaminants under the layers. For cable joints and irregular shapes, extend the wrap beyond the affected area to ensure a complete seal. No primer is required; the tape achieves its insulating properties as it fuses.

Usage recommendations

Store rolls in a cool, dry place away from direct sunlight. For electrical insulation, ensure voltage and temperature ratings of the tape meet the requirements of the specific application. Do not use as a substitute for proper heat-shrink tubing where certified protection is required; use this tape for repairs, moisture sealing and flexible mechanical protection.