3M 31 Scotch HD Mining Tape Black 50mm x 2.5m
3M31
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3M™ 31 Scotch® Heavy Duty Mining Scotch® Tape Black 50mm x 2.5m
Product Description
Scotch® Heavy Duty Mining Tape 31 has a tough, abrasion-resistant backing for jacket repair on mining cables. Due to the extremely abrasive environment, the original jacket on the cable gets damaged often and needs to be repaired. The tape is flexible, and the self-healing property of the mastic helps keep out moisture. Scotch® Mining Tape 31 is approved by MSHA (Mining Safety & Health Administration) as the outer jacketing of the 3M™ Mining Cable Splice Kits 3100 Series. The tape is printed with the MSHA logo.
Product Features
- On-site, quick, universal cable repair
- Abrasion, water and oil-resistant, flexible, heavy duty backing
- Moisture-resistant, self-healing, flame-retardant mastic
Product Applications
- Repair of mining cables and outer jacket of mining cable splice kits
- Repair and splicing of mine conduit
Application
Scotch® Heavy Duty Mining Tape 31 should be half-lapped over the damaged jacket area so as to cover the entire area.
Each end should be overwrapped with a quality PVC electrical tape.
(3M31)
Typical Data/Physical Properties
Values are typical, not to be considered minimum or maximum.
Properties measured at room temperature 73°F (~23°C) unless otherwise stated.
| Typical Rating | Test Method |
| Temperature rating 105°C | UL 510 |
| Heat resistance - backing only 70hrs at 125°C | D2000-Type CE |
| Flammability - Pass | MSHA CFR 30 P7 |
| Adhesion to Steel 17.5N/10mm | ASTM D-1000 |
| Adhesion to PE 12.2N/10mm | ASTM D-1000 |
| Adhesion to PVC 9.3N/10mm | ASTM D-1000 |
| Adhesion to Neoprene 1.5N/10mm | ASTM D-1000 |
| Adhesion to CSM 11.7N/10mm | ASTM D-1000 |
| Abrashion Res 0.05g Tabor H22 wheel 250g 1,000 Cycles | |
| Tensile Strength - backing only 2400 psi (16.5Mpa) | ASTM D-412 |
| Elongation at Break 500% | ASTM D-4325 |
| Tear Resistance - 35kg/cm backing only | ASTM D-624 |
| Breakdown Voltage 15.7kV/mm | ASTM D-149 |
| Volume Resistivity 1014 ohm/cm | ASTM D257 |
| Thickness 1.52mm | ASTM D-4325 |
| Oil resistance - Pass (70hrs/125°C/IRM903) | D2000-Type CE |
| Water absorbtion 0.5% | ASTM-570 |
| MVTR 0.38g/m² 24hr (37.8°C at 100% RH) | ASTM D-1249 |
| RoHS | 2011/65/EU |
| Hardness - Shore A 55 | ASTM D2240 |
| SKU | 3M31 |
| Brand | 3M |
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