Self-Fusing Silicone Rubber Electrical 3 M Tape 70 for High-Temperature Electrical Insulation

• Customization: Available
• Adhesive Type: Non-Adhesive
• Backing (Carrier) Material: Silicone
• Model NO.: 3M 70
• Backing (Carrier) Thickness: 0.3 mm
• Colour: Grey, Sky Blue
• Dielectric Strength: 34 Kv/mm
• Elongation at Break: 450%
• Maximum Operating Temperature: 180 ℃
• Minimum Operating Temperature: 0 ℃
• Features: UV-Resistant, Self-Sticking, Chemical-Resistant
• Applications: Electrical Maintenance, Insulation
• Shelf Life: 5 Year
• Tape Grade: Professional
• Transport Package: Safety Export Packing
• Specification: 0.3 mm x 25.4mm x 9.1m
• Trademark: No
• Origin: Xiamen, Fujian
• HS Code: 3919109900
• Production Capacity: 100000/Month
• Package Size: 25.00cm * 25.00cm * 25.00cm
• Package Gross Weight: 5.000kg

Product Description

Product Description

3 m 70 tape is a premium self-fusing silicone rubber electrical tape designed for reliable insulation and environmental sealing in demanding electrical applications. Made from high-grade silicone rubber, the tape fuses to itself without adhesive, forming a solid, void-free insulation layer when wrapped under tension.

This tape offers excellent electrical insulation, outstanding heat resistance, and long-term durability in harsh environments. It maintains flexibility across a wide temperature range and provides strong resistance to moisture, ozone, UV exposure, and many chemicals, making it ideal for both indoor and outdoor use.

3 m 70 tape is widely trusted in electrical maintenance, power distribution, and industrial installations where long-lasting performance and safety are critical. 

Adhesive Type	Non-Adhesive	Backing (Carrier) Material	Silicone
Backing (Carrier) Thickness	0.3mm	Standard Size	25.4mm x 9.1m
Elongation	450%	Dielectric Strenght	34 kV/mm
Shelf Life	5 Year	Tape Grade	Professional

Features

1. Self-fusing, adhesive-free design

Bonds to itself instantly, creating a seamless, airtight insulation layer without sticky residue.

2. High temperature resistance

Performs reliably in continuous high-temperature environments, suitable for demanding electrical conditions.

3. Excellent electrical insulation

Provides strong dielectric protection for splices, terminations, and cable repairs.

4. Moisture and weather resistant

Effectively seals out water, humidity, ozone, and UV radiation for long-term outdoor durability.

5. Flexible and conformable

Easily wraps around irregular shapes, connectors, and tight spaces without cracking or shrinking.

6. Clean removal

Can be removed without leaving adhesive residue, simplifying maintenance and rework.

Application

1. Electrical Splicing & Insulation

Used to insulate and protect low- and medium-voltage cable splices, ensuring reliable electrical performance and reduced risk of short circuits.

2. Moisture Sealing for Outdoor Connections

Ideal for sealing electrical joints exposed to rain, humidity, or harsh weather, preventing corrosion and insulation failure.

3. High-Temperature Cable Protection

Suitable for applications near motors, transformers, and other heat-generating equipment where standard PVC tapes may fail.

4. Emergency Cable Repair & Maintenance

Provides a fast, dependable solution for temporary or permanent electrical repairs without the need for additional adhesives or curing time.

5. Irregular Component Wrapping

Excellent for wrapping connectors, terminals, and non-uniform components due to its high elasticity and self-amalgamating nature.

Service Industry

Our 3 m 70 tape is suitable for a wide range of industries, including:

1. Power distribution and electrical utilities

2. Industrial electrical maintenance and repair

3. Electrical cabinets and control panels

4. Outdoor electrical installations

5. Motors, transformers, and generators

6. Marine, wind, and renewable energy systems

7. General industrial and OEM electrical assembly 

Company Introduction

Since 1999, Xiamen GBS Adhesive Tape Co., Ltd. has become a global specialist in providing integrated adhesive solutions for various industries like Electric & Electronic, Automotive, Aerospace, LED Lighting, Construction, Renewable energy, Medical, Textile&Apparel, Home appliance, etc.

 

With four factories located in Jiangsu, Zhejiang, Xiamen, Dongguan respectively, GBS Tape covers more than 500,000 square meters with multiple workshops from class 1,000 and 10,000 clean room, and over 1000 employees including Coating R&D team, Slitting&Die-cutting technicist, QC system, Marketing&Sales team to provide customers superior adhesive solution and high cleanliness protective films from coating, rewind slitting, laminating to precision die cutting. In particular, GBS has imported advanced precision equipment for die cutting processing, of which accuracy can reach as precise as 0.01mm.