Rubber Splicing Tape 23
Data Sheet September 2010
Description
Scotch® Rubber Splicing Tape 23 is a highly conformable, self-fusing EPR (Ethylene
Propylene Rubber) based, high voltage splicing tape. It is a non-vulcanizing, she l f-
stable tape with excellent electrical prop erties. Scotch® Tape 23 can be used as an
insulation for low-voltage a pplication as well as an insulation for splices up to 69,000
volts.
Agency Approvals &
Self Certifications
RoHS Compliant 2002/95/EC
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.
Tape Features
• Can be used to splice and terminate cab l es whose emergency overload
temperatures can reach 266°F (130°C)
• Based on Ethylene Propylene Rubber (EPR)
• Physical and electrical properties are unaffected by the degree of stretch
• Self-fusing tape
• Excellent electrical properties
• A special polyester liner which will not stick to the tap e upon unwind
• Compatible with all solid dielectric cable Insulatio n:
1. Polyethylene (high and low density)
2. Cross-linked Polyethylene (XLP)
3. Polyvinyl Chloride (PVC)
4. Butyl Rubber
5. Ethylene Propylene Rubber (PVC)
6. Oil-based rubber
Applications
• Primary electrical insulation for splicing cable from 60 0 volts through 69,000 volts
on all solid dielectric cables
• Primary insulation for building stre ss cones on cables up to 35,000 volts on all solid
dielectric cables
• Jacketing on high-voltage splices and terminations
• Moisture sealing electrical connection s
• Bus bar insulations
• End sealing high-voltage cable s
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Typical Properties
Not for specifications. Values are typical, not to be considered minimum or maxi mum.
Properties measured at room temperature 73°F (23°C) unless otherwise stated.
Physical Property
(Test Method ASTM D-4325 *) Typical Value
US units (metric)
Color Black
Thickness* 30 mils (0.76 mm)
Tensile Strength* 8 lbs/in (1,4 KN/m)
Ultimate Elongation* 1000%
Operating Temperature 194°F (90°C)
Emergency Operating T emperature 266°F (130°C)
Fusion (ASTM D-4388) Passes
Thermal Conductivity (ASTM D-1518) .1208 Btu (hr)(sq ft)
Modulus @ 266°F (130°C) See Characteristics & Test Data
Ozone Resistance (ASTM D-4388) Passes
Electrical Property
(Test Method ASTM D-4325 *) Typical Value
US units (metric)
Dielectric Strength*
After Standard Conditioning
After 96 hrs @ 96% RH
800 V/mil (31,5 Mv/m)
>90% of Std Condition Value
Insulation Resistance (ASTM D-1000)
(Indirect Method of Electrolytic Corrosion)
>1 x 106 megohms
Dissipation Factor See Characteristics & Test Data
Dielectric Constant See Characteristics & Test Data
Dielectric Strength at Elevated Temp erature See Characteristics & Test Data
Product
Specifications
The high-voltage corona-resistant tape is based on Ethylene Propylene Rubber and is
capable of operation at the emergency cable temperature of 266°F (130°C). Scotch®
Rubber Splicing Tape 2 3 may be applied in either the stretched or unstretched
condition without resulting in loss in either physical or electrical properties.
The tape is split resistant, crack resistant, slip resista nt and flag resistant when
exposed to various environments (indoor or outdoor). It is compat ible with synthetic
cable insulations. Scotch® Tape 23 has a dissipation factor of le ss than 5% at 266°F
(130°C), and a shelf life of 5 years.
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Engineering/
Architectural
Specifications
Splicing and terminating solid dielectric cables shall be done in accordance with
drawings engineered by the spli ce material manufacturer such as the 2047 Series
available from 3M Company. Splices and terminations may be insulated using
Scotch® Rubber Splicing Tape 23.
Characteristics and
Test Data
Modulus at 266°F (130°C):
A high-voltage tape that constantly maintains a rubber-like consistency througho ut the
life of a splice. One method of determining a rubbe r material consistency is by
measuring the modulus of the material. The modulus of a material is the stress
required to elongate the material to a gi ven elongation.
Figure 1 shows the 100% modulus (stre ss required to elongate Scotch® Tape 23 to
100% elongation) after hea t aging the samples at 266°F (130°C) for a varying nu mber
of days. The results indicate a very stable product with excellent “body” or elasticity
after oven aging at 266°F (130°C).
Dissipation Factor:
Figure 2 shows the dissipation of Scotch® Tape 23. This test was run according to
ASTM D-150 at a stress of 50 V/mil (2,0 MV/m) and a frequency of 60 cycles per
second.
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Characteristics and
Test Data, continued
Dielectric Constant:
Figure 3 shows the dielectric constant versus temperature of Scotch® Rubber Splicin g
Tape 23. This test was run according to ASTM D-1 50 at a stress of 50 V/mil (2,0
MV/m) and a frequency of 60 cycles per second.
Dissipation Strength at Elevated Te mperatures:
A high-voltage splice has a high dielectric strength at room temperature, but also good
values at the temperature at which it is expected to operate. Figure 4 shows a plot of
dielectric strength versus tempe rature. This test wa s run according to ASTM D-1000.
Dielectric Strength Versus Thickness:
Figure 5 shows a plot of dielectric strength in volts per mil versus thickness. As can
be seen by the curve, the dielectric st rength in the original thickness of .030” (,76 mm)
is 800 V/mil (31,5 MV/m). However, the dielectric strength of a .020” (,51 mm)
thickness of Scotch® Tape 23 is 1200 V/mil (47,2 MV/m). This test was run a c cording
to ASTM D-1000.
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Installation
Techniques
Scotch® Rubber Splicing Tape 23 should be applied in successive half-lapped, level-
wound layers until desired buildup is rea ched. To eliminate voids in critical areas,
highly elongate the tape.
Stretch tape in these critical areas ju st short of its breaking point. Doing so will not
alter its physical or electrical prop erties. In less critical areas, less elongation may be
used.
Normally, the tape is stretched to ¾ of its original width in these less critical areas.
Always attempt to half-lap to produce a uniform buildup. When using Scotch® T ape
23 for splicing cables from 35 kV to 69 kV, always elongate the tap e throughout the
entire splice.
Techniques for the prope r use of this tape are contained in standard and special prints
available through the 3M Systems for Splicing a nd Terminating Program. These are
available through the local 3M Electrical Markets Division representative.
Availability
Please contact your local distributor; av ailable from 3M.com/electrical [Where to Buy]
or call 1-800-245-3573.
Shelf Life & Storage
This product has a 5-year shelf life from date of manufacture when stored in a
humidity controlled storage (10° C/50ºF to 27°C/80ºF and <75% relative humidity).
The tape is not impaired by freezing or by overheated storage up to the point of flow,
which prevents removal from the package.
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 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.
3M is a trademark of 3M Company.
Scotch is a registered trademark of 3M Company.
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Electrical Markets Division
6801 River Place Blvd.
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800.245.3573
FAX: 800.245.0329
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