33 Vinyl Electrical Tape
Data Sheet
LISTED
539H
Insulation Tape
Product Description
3Mä 33 Electrical Tape is a quality, general-purpose
vinyl insulating tape. It has excellent resistance to:
abrasion, moisture, alkalies, acid, copper corrosion
and varying weather conditions (including sunlight).
It is a polyvinyl chloride (PVC) tape that has a high
dielectric strength, is flame-retardant and
conformable, and provides excellent mechanical
protection with minimum bulk. It is a UL Listed
“Insulating Tape”.
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UL Listed; UL 510 Standard “Insulating Tape”
(product category OANZ), File E129200
Polyvinyl chloride (PVC) backing
Pressure-sensitive rubber based adhesive
Inhibits corrosion of electrical conductor
Compatible with solid dielectric cable insulation
Typical Data/Physical Properties
Temperature Rating
UL 510
Flammability
UL 510
ASTM D1000
Dielectric Strength*
Standard Condition
High Humidity
Insulation Resistance*
Thickness*
Elongation*
Breaking Strength*
Adhesion*
To Steel
To Backing
Flagging*
80°C (176°F)
Pass
4 sec.
>1000 V/mil
>90% of Standard
>10
6
Megohms
7 mils
200%
17 lbs./in.
24 oz/in.
22 oz/in.
<0.1 in.
<0.1 in.
Applications
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Primary electrical insulation for all wire and
cable splices rated up to 600 volts
Protective jacketing for high voltage cable
splices and repairs
Harnessing of wires and cables
For indoor or outdoor applications
For above or below grade applications
Telescoping
24 hr. @ 50°C (120°F)
*Per
ASTM D1000
Note:
These are typical properties and should not be
used for specification purposes.
Installation Techniques
The tape shall be applied in half-lapped layers with
sufficient tension to conform and produce a uniform
covering. In most applications, this tension will
reduce the tape’s width to approximately 5/8 of its
original width. On pigtail splices, the tape should be
wrapped beyond the end of the wires and then folded
back, leaving a protective cushion to resist cut-
through. Always wrap the tape “uphill”, taping from
a smaller diameter surface to a larger diameter
surface. Apply the tape with no tension on the last
wrap to prevent flagging.
Specification
:
Product:
The tape is based on polyvinyl chloride (PVC) and/or
its copolymers and has a rubber based, pressure-
sensitive adhesive. The tape shall be 7.0 mils thick,
and be UL Listed and marked per UL Standard 510
as “Flame Retardant and Weather Resistant”. The
tape must be applicable at temperatures ranging from
32°F (0°C) through 100°F (38°C) without loss of
physical properties. The tape shall be classified for
use in both indoor and outdoor environments. The
tape shall be compatible with synthetic cable
insulations, jackets and splicing compounds. The tape
will remain stable and will not telescope more than
0.1 inches when maintained at temperatures below
120°F (50°C).
Shelf Life
3M 33 vinyl electrical tape has a 5-year shelf life
(from date of manufacture) when stored under the
following recommended storage conditions. Store
behind present stock in a clean dry place at a
temperature of 70°F (21˚C) and 40-50% relative
humidity. Good stock rotation is recommended.
Engineering/Architectural
Specifications
:
Primary electrical insulation (branch wiring in wet or
dry locations): All splices for 600 volt wire and rated
80°C (176°F) and below shall be insulated with a
minimum of two half-lapped layers of 3M 33 Vinyl
Electrical Tape. All connectors having irregular
surfaces shall be padded with Scotchfilä Electrical
Insulation Putty or Scotchä 130C Rubber Splicing
Tape prior to insulating with 3M™ 33 Vinyl
Electrical Tape. Mechanical protection (outer
jacketing): All rubber and thermoplastic insulating
high voltage power cable tape splices and repairs
shall be overwrapped with at least two half-lapped
layers of 3M 33 Vinyl Electrical Tape.
Availability
3M 33 vinyl electrical tape is available from your
local 3M authorized electrical distributor in the
following standard roll sizes:
3/4” x 36 yd.
1 1/2” x 44 ft.
Other lengths and widths are available by special
order.
“Scotch”, “Scotchfil” and “3M” are trademarks of 3M.
Important Notice
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.
Warranty; Limited Remedy; Limited Liability.
This product will be free from defects in material and manufacture as of the date 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 loss or damage arising from this 3M product, whether
direct, indirect, special, incidental or consequential regardless of the legal theory asserted.
Electrical Products Division
6801 River Place Blvd.
Austin, TX 78726-9000
www.3M.com/elpd
© 3M IPC 2000
78-8124-4873-2-B
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