3M Self-Amalgamating Tape – Scotch 23

The 3M Scotch 23 Self-Amalgamating Tape is a high-performance insulating solution designed for splicing, sealing, and protecting electrical cables and joints. Engineered with an ethylene propylene rubber (EPR) base, this tape provides excellent electrical properties and superior moisture resistance. It is widely used in high-voltage insulation, communication cable sealing, pipe wrapping, and corrosion protection, both above and below ground.

Product Features

High Voltage Insulation

Provides primary insulation for cable joints up to 69kV and withstands emergency cable temperatures up to 130°C, ensuring long-term reliability in electrical applications.

Self-Amalgamating Design

Forms a seamless, void-free, waterproof seal by bonding to itself upon application—ideal for moisture sealing and environmental protection.

Exceptional Conformability

Highly flexible and stretchable, enabling it to conform to irregular shapes and surfaces, which ensures consistent coverage and insulation.

Wide Operating Range

Suitable for use in environments ranging from -20°C to 90°C, making it effective for both indoor and outdoor installations in harsh or variable conditions.

Durable and Long-Lasting

Non-vulcanizing and shelf-stable, with a service life of up to 5 years. It resists cracking, flagging, and deterioration under UV and weather exposure.

Versatile Applications

Ideal for insulating and sealing high-voltage splices and terminations, communication cable joints, pipeline protection, and waterproofing electrical connections.

Product Specifications

• Product Code: Scotch 23
• Material: Ethylene Propylene Rubber (EPR)
• Tape Type: Single-sided, self-amalgamating
• Color: Black
• Thickness: 0.76 mm
• Dielectric Strength: 11 kV/mm, 25 kV/mm, 36 kV/mm (dependent on layers)
• Elongation: >300%
• Operating Temperature: -20°C to 90°C
• Emergency Cable Temperature: Up to 130°C
• Weather Resistance: Excellent (UV, water, and corrosion resistant)
• Standard Compliance: BT M128B
• Application Voltage: Up to 69kV
• Shelf Life: 5 years
• Usage: Indoor and outdoor, above or below ground