3M Glass Cloth Electrical Tape 27
with Pressure-Sensitive Rubber
Thermosetting
Data Sheet
October 2008
™
Description
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
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3M
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Glass Cloth Electrical Tape 27
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
Property (Test Method)
(ASTM
D1000
unless noted)
Color
Adhesive
Backing Thickness
Total Thickness
Elongation (% at break)
Operating Temperature
Adhesion to Steel
white
Typical Value
US units (metric)
rubber thermosetting
5.0 mils (0,125 mm)
7.0 mils (0,177 mm)
5%
150° C
30 oz/in (3.3 N/10 mm)
Electrical
Property (Test Method)
(ASTM
D1000
unless noted)
Dielectric Breakdown
Breaking Strength
Insulation Resistance
CTI Material Group
Electrolytic Corrosion Factor
3M Test Method
3000 V
Typical Value
US units (metric)
150 lbs/in (252 N/10 mm)`
4
4.8 x 10 megohms
1
0.9
Specifications
The tape is a glass cloth electrical tape with a rubber thermosetting adhesive. The tape
shall be white and 7 mils (0,177 mm) thick. The tape shall be coated on one side with
pressure-sensitive adhesive, which shall not require heat, moisture or other preparation
prior to or subsequent to application. The adhesive coating shall be smooth and uniform
and be free of lumps and bare spots. There shall be no separator between adjacent
layers of the roll. The tape shall be UL Recognized under UL Standard 510. The tape
shall perform at a temperature of 302° F (150° C) without loss of physical or electrical
properties.
Engineering/
Architecture
Shelf Life &
Storage
All splices for 600-volt wire rated at 266° F (130° C) shall be insulated with a minimum of
two half-lapped layers of 3M
™
Glass Cloth Electrical Tape 27.
This product has a 5-year shelf life from date of manufacture when stored in a humidity
controlled storage (50°F/10°C to 80°F/27°C and <75% relative humidity).
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Glass Cloth Electrical Tape 27
Availability
Tape 27 is available in standard and custom lengths and widths. Standard length is 60
yards.
Please contact your local distributor. Names and addresses are available from
3M.com/electrical [Where to Buy], or call 1-800-676-8381 or 1-800-245-3573.
Important Notice
All statements, technical information, and recommendations related to 3M’s products are based on information
believed to be reliable, but the accuracy or completeness is not guaranteed. Before using this product, you must
evaluate it and determine if it is suitable for your intended application. You assume all risks and liability
associated with such use. Any statements related to the product which are not contained in 3M’s current
publications, or any contrary statements contained on your purchase order shall have no force or effect unless
expressly agreed upon, in writing, by an authorized officer of 3M.
This product will be free from defects in material and manufacture at the time of purchase.
3M MAKES
NO OTHER WARRANTIES INCLUDING, BUT NOT LIMITED TO, ANY IMPLIED WARRANTY OF
MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
If this product is defective within the
warranty period stated above, your exclusive remedy shall be, at 3M’s option, to replace or repair the 3M product
or refund the purchase price of the 3M product.
Except where prohibited by law, 3M will not be liable for any
indirect, special, incidental or consequential loss or damage arising from this 3M product, regardless of
the legal theory asserted.
Warranty; Limited
Remedy; Limited
Liability
3M is a trademark of 3M Company.
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Electrical Markets Division
6801 River Place Blvd.
Austin, TX 78726-9000
800 676 8381 or 800 245 3573
FAX: 800 828 9329 or 800 245 0329
www.3M.com/electrical/oem
Please recycle.
© 3M 2008 All rights reserved.
78-8111-0895-6_B
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