3M Scotch® 31 Heavy Duty Mining Tape

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3M Scotch® 31 Heavy Duty Mining Tape
Categories:	Polymer; Adhesive
Material Notes:	Scotch® Heavy Duty Mining Tape 31 has a tough, abrasion-resistant backing for jacket repair on mining cables. Due to 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 out jacketing of the 3M™ Mining Cable Splice Kits 3100 Series. The tape is printed with MSHA logo. Information provided by 3M
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Physical Properties	Original Value	Comments

Water Absorption	0.50 %	ASTM D570
Water Vapor Transmission	0.380 g/m²/day @Temperature 37.8 °C	100% RH; ASTM D1249
Thickness	60.0 mil	ASTM D4325

Mechanical Properties	Original Value	Comments
Hardness, Shore A	55	ASTM D2240
Tensile Strength at Break	16.5 MPa	ASTM D412
Elongation at Break	500 %	ASTM D412
Tear Strength	35.0 kg(f)/cm	ASTM D624
Peel Strength	0.875 pli	Adhesion to Neoprene; ASTM D1000
	5.3125 pli	Adhesion to PVC; ASTM D1000
	6.6875 pli	Adhesion to CSM; ASTM D1000
	7.00 pli	Adhesion to PE; ASTM D1000
	10.0 pli	Adhesion to Steel; ASTM D1000
Taber Abrasion, mg/1000 Cycles	50	H22 wheel, 250 g

Electrical Properties	Original Value	Comments
Volume Resistivity	1.00e+14 ohm-cm	ASTM D257
Dielectric Strength	400 kV/in	ASTM D149

Descriptive Properties
Appearance	Black

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PMM35196 / 169943

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