3M™ Glass Cloth Electrical Tape 69
with Silicone Pressure-Sensitive
Adhesive
Data Sheet
May 2014
Description
3M™ Glass Cloth Electrical Tape 69 is a white glass cloth tape with a high-
temperature thermosetting silicone pressure-sensitive adhesive. It is designed for use
in 600-volt dry location applications motors, and transformers with and without varnish
coating. Key attributes like high mechanical strength and resistance to high
temperatures provide excellent performance. The thermosetting adhesive provides an
increased bond once applied in areas of high ambient temperatures.
The
thermosetting adhesive provides elevated temperature performance up to Class N
392°F (200° C) temperature rating.
This tape provides insulation and solvent-resistant protection for use as coil cover,
anchor, banding and core, layer and crossover insulation. This tape features a non-
corrosive adhesive. It is conformable, printable and flame retardant.
Agency Approvals,
Self Certifications,
MIL Specs
Meets Requirements of:
Military Specification No. Mil-I-19166C
UL Recognized Component listing for 200° C (Guide OANZ2, File E17385)
CSA Accepted Component 180° C, File LR93411
RoHS
2011/65/EU
"RoHS 2011/65/EU" means that the product or part does not contain any of the substances in
excess of the maximum concentration values (“MCVs”) in EU RoHS Directive 2011/65/EU. The
MCVs are by weight in homogeneous materials. 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.
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3M™ Glass Cloth Electrical Tape 69
Applications
Insulating electric and induction-type furnace power supply leads
Securing high-temperature, non-PSA insulation (such as asbestos and glass) in
high-temperature areas
Securing Scotch
®
Fire Retardant Electric Arc Proofing Tape 77
Splicing wire SF and SFF rated 302° F (150° C), 356° F (180° C)
Reinsulating and repairing coils on mining machines
Splicing silicone-covered glass wire where splices require more abrasion resistance
and mechanical strength than can be provided by silicone tapes Insulating Class “H”
dry-type transformer leads
Insulating splices made on SA type wire in heat treat areas
Especially suited to high-temperature applications
Used in a variety of coil/transformer and motor applications, including an outer wrap
for bobbin wound coils, banding arbor wound coils, lead pad hold down, end turn
and lead anchor and connection.
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
UL 510 Flame Retardant
white
silicone
Typical Value
US units (metric)
5.0 mils (0,125 mm)
7.0 mils (0,177 mm)
5%
200° C
40 oz/in (4.4 N/10 mm)
Yes
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)
180 lbs/in (314 N/10 mm)`
4
4.8 x 10 megohms
1
0.9
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3M™ Glass Cloth Electrical Tape 69
Specifications
3M™ Glass Cloth Electrical Tape 69 is a glass cloth electrical tape with a silicone
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 392°
F (200° 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 Scotch
®
Glass Cloth Electrical Tape 69.
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).
Availability
3M™ Glass Cloth Electrical Tape 69 is available in standard and custom lengths and
widths. Standard length is 36 yards.
For availability, 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.
Warranty; Limited
Remedy; Limited
Liability
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 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.
3M and Scotch are trademarks 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 2014 All rights reserved.
78-8111-0896-4 Rev D
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