3M 27 Scotch Glass Cloth Tape 12" X 66'

3M™ Glass Cloth Electrical Tape 27 is a 7-mil woven insulating glass cloth tape with pressure-sensitive rubber thermosetting adhesive. This tape is designed to operate in 600-volt dry applications requiring high mechanical strength and resistance to high temperatures. The glass cloth is specially treated and prepared to provide corrosion-free protection. The glass cloth will not shrink, rot or burn, has a high tensile strength and is printable.

Agency Approvals, Self Certifications, MIL Specs

Meets Requirements of:

• UL Recognized Component listing for 302° F (150° C), Guide OANZ2, File E17385
• CSA Accepted Component 266° F,(130° C), File LR93411

RoHS Compliant 2002/95/EC” means that the product or part (“Product”) does not contain any of the substances in excess of
the maximum concentration values in EU Directive 2002/95/EC, as amended by Commission Decision 2002/618/EC, unless the
substance is in an application that is exempt under RoHS. This information represents 3M’s knowledge and belief, which may
be based in whole or in part on information provided by third party suppliers to 3M.

Applications

• Insulating electric and induction-type furnace power supply leads
• Securing systems requiring high mechanical strength and resistance to high temperatures
• Splicing wire SF and SFF rated 302° F (150° C), 356° F (180° C)
• Insulating motor lead connectors, switchers and controls for furnaces and ovens
• Insulation in coil wrapping outerwrap
• Provides heat stable insulation for hot spot applications

Typical Properties

Data is not for specifications. Values are typical and should not be considered minimum or maximum.
Properties measured at room temperature 73° F (~23° C) unless otherwise stated.

Physical Properties

• Color: White
• Adhesive: Rubber thermosetting
• Backing Thickness: 5.0 mils (0.125 mm)
• Total Thickness: 7.0 mils (0.177 mm)
• Elongation (% at break): 5%
• Operating Temperature: 150°C
• Adhesion to Steel: 30 oz/in (3.3 N/10 mm)

Electrical Properties

• Dielectric Breakdown: 3000 V
• Breaking Strength: 150 lbs/in (252 N/10 mm)
• Insulation Resistance: 4.8 x 10^4 megohms
• CTI Material Group: 1
• Electrolytic Corrosion Factor (3M Test Method): 0.9