Comprehensive information about Electrical Tapes can be found in our ‘Guide to Electrical Tapes‘
To know more about the factors that you need to consider when choosing a rubber tape, please visit our article ‘Rubber Electrical Tapes – Guide and How to select ‘
Types of Rubber, Insulating, and Splicing Tapes
Primary Insulating Tapes 600V to 69kV
Ethylene propylene rubber tapes for termination, splicing and bus bar applications. Premium tapes are recommended for medium to high voltage applications. They offer the highest performance ratings of tapes made by 3M, with excellent stretch. General purpose tapes are great for low voltage moisture sealing and padding.
- Thickness: 30 mils
- Operating Temperature: up to 194°F (90°)
- Elongation: 700-1000%
- Self-bonding
- Linered or Linerless
- Primary insulation up to 69kV
Insulating and Splicing Tapes | Product Description/Applications | Thickness | Max. Temp. | Roll Size | |
Scotch® Professional Grade Linerless Rubber Splicing Tape 130C |
High voltage insulating; thermally conductive; self-bonding. Primary electrical insulation for splicing all solid dielectric cables through 69kV. |
30 mil | continuous: 90°C / 194°F short-term: 130°C / 266°F |
1″ x 30′ (25 mm x 9,1 m) 3/4″ x 30′ (19 mm x 9,1 m) 1-1/2″ x 30′ (38 mm x 9,1 m) 2″ x 30′ (50 mm x 9,1 m) 1″ x 10′ (25 mm x 3,05 m) 1″ x 15′ (25 mm x 4,6 m) |
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Scotch® Professional Grade Linered Rubber Splicing Tape 23 |
High and low voltage insulation, self-fusing rubber tape. Primary electrical insulation for splicing all solid dielectric cables through 69kV. |
30 mil | continuous: 90°C / 194°F short-term: 130°C / 266°F |
3/4″ x 30′ (19 mm x 9,1 m) 1″ x 20′ (19 mm x 25 m) 1″ x 30′ (25 mm x 9,1 m) 1-1/2″ x 30′ (38 mm x 9,1 m) 2″ x 30′ (50 mm x 9,1 m) |
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Scotch® Mid- Grade Linerless Rubber Splicing Compound 2242 |
General purpose rubber insulating tape. Splicing, jacketing and general insulating. |
30 mil | continuous: 90°C / 194°F short-term: 130°C / 266°F |
3/4″ x 15′ (19 mm x 4,56 m) 1-1/2″ x 15′ (38 mm x 4,56 m) 2″ x 15′ (51 mm x 4,56 m) |
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3M™ Temflex™ Mid-Grade Linered Rubber Splicing Tape 2155 |
Economical low voltage rubber insulating tape; self-fusing. Insulating wire splices, split bolt connections and motor leads up to 600V. |
30 mil | 80°C 176°F |
3/4″ x 22′ (19 mm x 6,7 m) 1-1/2″ x 22′ (38 mm x 6,7 m) |
Self-Fusing Silicone Rubber Tapes
Self-fusing silicone rubber tape with a thin, profile and high operating temperature. Used in medium voltage applications and those with critical weight restrictions. Excellent ozone, arc and track resistance. Scotch® 70HDT Tape has a triangular profile, thicker in the middle, to even out half lapped wraps.
- Thickness: 12-20 mil
- Operating Temperature: up to 356°F (180°)
- Elongation: 300-450%
- Self-fusing
- Lightweight
- Primary insulation up to 69kV
- Easy to tear liner
Insulating and Splicing Tapes | Product Description/Applications | Thickness | Max. Temp. | Roll Size | |
Scotch® Professional Grade Silicone Rubber Tape 70 |
Arc and track resistant; self fusing, long lasting silicone rubber. Protective overwrap for terminating high voltage cables against arcing and tracking. |
12 mil | 180°C 356°F |
1″ x 30′ (25 mm x 9,14 m) | |
Scotch® Professional Grade Heavy Duty Triangular Silicone Rubber Tape 70HDT |
Arc and track resistant; self fusing, long lasting silicone rubber, triangular tapered edge profile and a blue guideline. Protective overwrap for terminating high voltage cables against arcing and tracking. |
20 mil center, 8 mil edge |
180°C 356°F |
1″ x 30′ (25 mm x 9,14 m) |
Cable Jacket Repair & Mining Tapes
Extra tough backing made of vulcanized CSM rubber. Use to jacket cable in rough environments like construction sites, steel mills, petrochemical plants and industrial manufacturing. Use for on site repairs. Scotch® Heavy Duty Mining Tape 31 has an MSHA approval rating.
- Thickness: 60 mils.
- Operating Temperature: up to 221°F (105°)
- Elongation: 500%
- Oil and UV resistant
- Flame Retardant
- Self-healing, Abrasion resistant
- Easy to tear liner
Insulating and Splicing Tapes | Product Description/Applications | Thickness | Max. Temp. | Roll Size | |
Scotch® Varnished Cambric Professional Grade Tape 2510 and 2520 |
Yellow, varnish coated cotton cloth 2510: no adhesive; 2520: adhesive. Insulate bus bars, motor leads (for re-entry), service drop connections. |
2510 is 7 mil 2520 is 8 mil |
105°C 220°F |
3/4″ x 60′ (19 mm x 18,3 m) 3/4″ x 36 yd (19 mm x 33 m) 1″ x 36 yd (25 mm x 33 m) 1-1/2″ x 36 yd (38 mm x 33 m) 2″ x 36 yd (51 mm x 33 m) 36″ x 25 yd (914,4 mm x 22,9 m) 2510 only |
Varnish Cambric Tapes
The first electrical tape manufactured by 3M. Woven cotton cambric fabric stiffened with electrical insulating varnish. Creates a strong, insulating shell when wrapped around a cable, splice or bus bar.
- Thickness: 7-8 mils
- Operating Temperature: up to 220°F (105°)
- Width: .75-2 inches
- Oil primed
- Excellent dielectric strength
Insulating and Splicing Tapes | Product Description/Applications | Thickness | Max. Temp. | Roll Size | |
Scotch® Cable Jacket Repair Professional Grade Tape 2234 |
Tough, black, abrasion and chemical-resistant backing laminated to a moisture sealing mastic for jacket repair on industrial cables |
60 mil | 105°C 221°F |
2″ x 6′ (51 mm x 1,82 m) | |
Scotch® Heavy Duty Mining Professional Grade Tape 31 |
Tough, abrasion-resistant backing laminated to a moisture sealing mastic for jacket repair on mining cables. MSHA-approved. |
60 mil | 105°C 221°F |
2″ x 6′ (51 mm x 1,8 m) 2″ x 8.5′ (51 mm x 2,6 m) 2″ x 10′ (51 mm x 3,05 m) |
Electrical Tapes and Grounding Products
In applications involving medium to high voltage current; electrical shielding and grounding products come into play. 3M offers a variety of solutions which are compatible with high voltage splicing and terminating materials.
Arc Protection
Intumescent Elastomer Tape protects cable from arc flash faults if they should occur in adjacent cables within 20”. Elastomeric tape formulated to generate a thick charred buildup when exposed to high temperatures. Used as jacketing in high voltage applications including aerial and underground.
- Thickness: 30 mils
- Width: 1.5-3 inches
- Elongation: 90-150%
- One half-lap wrap provides adequate protection in most circumstances
- Highly conformable
Premium Tape
Electrical Shielding
An all metal open weave tape. Creates a Faraday cage around the conductor to block the electromagnetic field in bifurcated cables.
- Width: 1”-2”
- Elongation: 70%
- Operating Temperature: 32°F to 220°F (0°C to 105°C)
- Fire resistant
- Corrosion resistant
- Permits complete resin saturation when splicing
Premium Tape
Electrical Semi-Conducting
An ethylene propylene rubber tape. Provides continuous shielding inside multi-layered cables jackets. Because it conducts electricity; it should never be used as the outer jacket layer in a tape splice configuration. Must be overwrapped with non-conducting vinyl or rubber tape.
- Thickness: 30 mils
- Operating Temperature: up to 194°F (90°)
- Elongation:800%
- UV resistant
- Moisture resistant
- Suitable for providing bolted connections on insulated bus bars
Premium Tape
Electrical Grounding Braid
An all metal woven grounding braid designed to extend the ground potential in medium to high voltage cables. It has a high current carrying capacity of 6 AWG wire. Use for aerial strand-mount, pad-mount, pole-mount underground and wall-mount applications
- Highly conformable
- Operating Temperature : 32°F to 220°F (0°C to 105°C)
- Thickness: 93.75 mils
- Width: 0.5”
- Corrosion resistant copper
Premium Tape
Rubber + Mastic
Mastic is a very tacky material with extreme elongation properties. Rubber mastic tape combines an ethylene propylene rubber backing with a conformable mastic layer. Scotch® Rubber Mastic Tape 2228 integrates some of the best qualities of both materials−higher temperature rating, conformability, dielectric strength. It’s one tape that belongs in every toolkit.
Long lasting applications + great for quick fixes.
Learn more about Mastic Electrical Tape and where and when to use it.