Specialty tapes that meet
the highest standards.
Specialty tapes that meet
the highest standards.
3M specialty tapes are engineered for critical electrical jobs that demand long-lasting insulation, moisture protection, and shielding. Designed for cable splicing, terminating, and jacketing applications up to 69 kV, these tapes include self-bonding rubber, corrosion-resistant mastics, conductive wraps, and resin-reinforced materials. Whether you are restoring cable structure or sealing out moisture in underground systems, 3M delivers field-tested products trusted by contractors, utilities, and industrial teams.
Summit Electric Supply provides access to a complete range of 3M specialty tapes for insulation, shielding, sealing, and mechanical protection. Our inventory includes solutions for high-voltage splicing, underground sealing, and outer jacket repair. Whether you are managing direct burial projects, restoring cable integrity, or maintaining substation infrastructure, our team can help match the right 3M product to your installation needs.
Navigate 3M Specialty Tape:
What you can expect from 3M Specialty Tape.
What you can expect from 3M Specialty Tape.
- High-Voltage Insulation – 3M Scotch® 130C and Scotch® 23 tapes build dielectric strength during splicing and terminating. These self-bonding rubber tapes are rated for use up to 69 kV and are trusted in switchgear, substations, and industrial cable runs where insulation must be compact and durable.
- Watertight Seal – EPR-based rubber tapes like Scotch® 23 fuse to themselves on contact, forming a continuous moisture barrier. This seal helps protect underground, outdoor, or direct burial installations from water damage.
- Moisture Control – Scotch® 2228 combines a mastic adhesive with a rubber backing to seal over connectors, cable heads, and jacket transitions. It conforms to uneven surfaces and remains effective in wet or buried environments.
- Shielding Continuity – Scotch® 24 shielding tape restores conductivity across splices and helps maintain proper grounding. Its flat copper construction offers a low-resistance path that supports shield performance in cable construction.
- Jacket Protection – Armorcast resin-impregnated fiberglass wraps create a hardened outer shell over the splice area. This protects against physical impact, UV exposure, and soil pressure after direct burial or conduit work.
- Heat Resistance – Scotch® 69 and Scotch® 70 glass cloth tapes are designed to handle high temperatures and resist arc flash. Common in switchgear and motor leads, these tapes provide added thermal protection where it’s needed most.
- Standards Compliance – Each specialty tape meets or exceeds key industry standards for dielectric strength, thermal aging, UV performance, and chemical resistance. They support safe, code-compliant installs in utility and industrial systems.
Featured 3M Specialty Tape Products
Featured 3M Specialty Tape Products
Rubber Tape | Primary Insulation
Delivers the foundational insulation your splice or termination depends on.
Rubber Tape | Primary Insulation
Delivers the foundational insulation your splice or termination depends on.
Includes: 3M™ Scotch® 13, 3M™ Scotch® 23, 3M™ Scotch® 130C
- Designed for use up to 69 kV in medium voltage cable splicing and terminations
- Self-fusing EPR construction forms a tight, void-free insulation layer
- Maintains dielectric strength and flexibility even in cold or confined spaces
Mastic Tape | Moisture Sealing
Forms a watertight barrier that holds up in buried or exposed environments.
Mastic Tape | Moisture Sealing
Forms a watertight barrier that holds up in buried or exposed environments.
Includes: 3M™ Scotch® 2228, Scotch-Seal™ 2229
- Combines rubber or vinyl backing with mastic to seal against water and corrosion
- Conforms to irregular shapes like split bolts, lugs, and cable transitions
- UV resistant and designed for long-term use in direct burial or outdoor installs
Conductive Tape | Shielding
Restores continuity and protects against electromagnetic interference.
Conductive Tape | Shielding
Restores continuity and protects against electromagnetic interference.
3M™ Scotch® 24
- Copper wire mesh construction helps protect cable jackets
- Used as an outer wrap over resin kits, splices, or conduit joints
- UV- and weather-resistant with cold-weather application flexibility
Composite Wrap | Outer Jacket Reinforcement
Protects the finished splice from impact, abrasion, and soil movement.
Composite Wrap | Outer Jacket Reinforcement
Protects the finished splice from impact, abrasion, and soil movement.
3M™ Armorcast Structural Material
- Resin-impregnated fiberglass hardens into a durable shell
- Used as the final layer in direct burial and exposed applications
- Resists mechanical stress, weather, and environmental degradation
Glass Cloth Tape | High-Temperature & Arc Protection
Withstands heat, flame, and arc exposure in critical installations.
Glass Cloth Tape | High-Temperature & Arc Protection
Withstands heat, flame, and arc exposure in critical installations.
Includes: 3M™ Scotch® 69, 3M™ Scotch® 70.
- Woven fiberglass tapes provide thermal protection up to 392°F
- Ideal for areas exposed to high heat, UV, or flashover risk
- Often layered over insulation in motor leads, transformers, or switchgear