Scotch® 70 – Professional-Grade Silicone Electrical Tape from 3M™

Scotch® 70 is a high-performance, self-fusing silicone rubber tape designed for demanding electrical insulation tasks. With excellent arc resistance, superior weathering characteristics, and high conformability, this Class H tape performs reliably in environments reaching up to 180 °C.

At EKO-TECH, we not only supply 3M™ Scotch® 70 – we specialize in custom converting services: from slitting and rewinding to complex die-cuts with fingerlifts or multilayer structures. All processes are done in-house in Poland to meet your application requirements.

Applications of Scotch® 70

Scotch® 70 is ideal for high-voltage and high-temperature electrical insulation. Typical applications include:

Overwrap protection of high-voltage cable terminations (up to 180 °C).
Primary insulation for silicone rubber cables.
Protection of connections exposed to moisture, pollution, and UV radiation.
Wrapping splices in cables made of:
- Butyl rubber
- Oil-based rubber
- EPR (Ethylene Propylene Rubber)
- PVC
- PE and XLPE
Use in power distribution, control panels, rail, automotive, and renewables.

Secure Your High-Voltage Insulation with Scotch® 70

Customized Cutting and Converting by EKO-TECH Contact us today – we’ll design a tailored solution for your exact needs.

Benefits of Using Scotch® 70

Self-fusing silicone rubber – instantly bonds to itself, no holding required.
Arc and track resistance – ideal for high-voltage protection.
UV, ozone, and weather resistant – ensures durability in harsh environments.
Excellent dielectric strength – reliable insulation under electrical stress.
Highly conformable – perfect for irregular shapes and tight bends.
RoHS 2011/65/EU compliant – meets EU environmental standards.

Customer Benefits – Why Work with EKO-TECH as Your Converter

Partnering with EKO-TECH gives you more than just tape – it ensures a tailored product engineered to your workflow:

Custom roll lengths (e.g., 3 m, 10 m, 25 m),
Precision slitting to custom widths (e.g., 12 mm, 20 mm, 38 mm),
Die-cuts and kiss-cuts with fingerlifts for fast manual or automated application,
Cross-wound spooling to maximize line productivity,
Specialized packaging – unit, batch, or branded formats.

Why Trust EKO-TECH – 3M™ Select Converter

In-house engineering support – we help you develop the right solution from prototype to series production.
All converting operations under one roof – slitting, laminating, rewinding, die-cutting.
Certified 3M™ Select Converter – official recognition for quality, consistency, and technical expertise.
Fast turnaround and controlled quality – from custom sampling to serial production.

Converting Capabilities – Tailored Solutions for Your Needs

At EKO-TECH, we offer complete converting for Scotch® 70, including:

Slitting to custom widths,
Rewinding to specific lengths (e.g., 5 m, 10 m, 20 m),
Cross-wound spooling for automated applications,
Die-cutting and kiss-cutting, including fingerlift options,
Multilayer constructions with liners or other functional layers,
Custom packaging to match your process or branding.

Technical data

Adhesive Type Non-Adhesive
Application/Industry Automotive and Marine, Commercial Construction, Industrial Construction, Irrigation, Maintenance and Repair Operations, Mining, Solar, Wind Power, Appliance and Fixture, Utility
Applications Insulation, Sealing, Electrical Maintenance
Backing (Carrier) Material Silicone
Backing (Carrier) Thickness (Metric) 0.3 mm
Brands Scotch
Dielectric Strength 34 kV/mm
Elongation at Break 450.0%
Features UV-resistant, Chemical-resistant, Self-sticking
Maximum Operating Temperature 180 ℃
Maximum Operating Temperature (Fahrenheit) 356 ℉
Minimum Operating Temperature0 ℃

Product Colour Grey, Sky Blue
Rolls per Carton 1
Rolls per Case 24
Shelf Life 5 Year
Smallest Saleable Unit Roll
Tape Grade Professional
Tensile Strength (metric) 82.7 Kilopascal
Total Tape Thickness without Liner (Imperial) 12 mil
Total Tape Thickness without Liner (metric) 0.3 mm
Overall Length (Imperial) 30 ft
Overall Length (Metric) 9.1 mm, 457 m
Overall Width (Imperial) 0.984 in, 1 in
Overall Width (Metric) 25 mm, 25.4 mm