ASTM D2686-00

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An American National Standard
Designation: D 2686 – 00
Standard Specification for
Polytetrafluoroethylene-Backed Pressure-Sensitive
Electrical Insulating Tape
This standard is issued under the fixed designation D 2686; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (e) indicates an editorial change since the last revision or reapproval.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope 4.1.2 Type II—Bondablebackingtapecoatedwithasilicone
adhesive:
1.1 This specification covers electrical insulating tape con-
4.1.2.1 Grade A—0.050 mm (0.002 in.) backing thickness,
sisting of a polytetrafluoroethylene (PTFE) film coated on one
and
side with a pressure-sensitive adhesive.
4.1.2.2 Grade B—0.125 mm (0.005 in.) backing thickness.
1.2 The values stated in SI units are to be regarded as the
standard. The values given in parentheses are for information
5. Materials and Manufacture
only.
5.1 The tape shall comprise a backing consisting of a film of
NOTE 1—This standard is similar to IEC 60454-3-14.
tetrafluorethylene polymer on one side of which has been
appliedapressure-sensitiveadhesive.Thebackingshallbefree
2. Referenced Documents
of defects such as roughness and holes, and the adhesive layer
2.1 ASTM Standards:
shall not show defects such as lumps or gels and bare areas.
D 1000 Test Method for Pressure-Sensitive Adhesive-
The slit edge of the tape shall be free of defects such as nicks.
Coated Tapes Used for Electrical and Electronic Applica-
The adhesive shall not transfer when the tape is unwound from
tions
the roll. The product may contain a release liner to assist the
D 1711 Terminology Relating to Electrical Insulation
unwind and avoid transfer without affecting the adhesion of the
2.2 IEC Standard:
tape.
IEC60454-3 SpecificationsforPressure-SensitiveAdhesive
Tapes for Electrical Insulation
6. Requirements
6.1 All tapes shall meet the requirements given in Table 1
3. Terminology
for the grades specified.
3.1 Definitions—For definitions of terms used in this speci-
fication, refer to Terminology D 1711.
7. Standard Rolls
7.1 The standard widths and lengths shall be selected from
4. Classification
the following:
4.1 This specification covers two types of PTFE tape in
7.1.1 Widths:
various thicknesses, as follows:
mm in. mm in.
4.1.1 Type I—Standard backing coated with a silicone
1 7
6 ⁄4 22 ⁄8
adhesive:
9 ⁄8 25 1
4.1.1.1 Grade A—0.050 mm (0.002 in.) backing thickness,
1 1
12 ⁄2 30 1 ⁄4
and 5 1
15 ⁄8 38 1 ⁄2
19 ⁄4 50 2
4.1.1.2 Grade B—0.125 mm (0.005 in.) backing thickness.
Widths greater than 50 mm (2 in.) shall be agreed upon
between the purchaser and the seller.
This specification is under the jurisdiction of ASTM Committee D09 on
7.1.2 Lengths:
Electrical and Electronic Insulating Materials and is the direct responsibility of
Subcommittee D09.07 on Flexible and Rigid Insulating Materials.
mftm ft
Current edition approved April 10, 2000. Published July 2000. Originally
published as D 2686 – 68 T. Last previous edition D 2686 – 94. 33 108 55 180
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