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ASTM D3308-06

(Specification)

Standard Specification for PTFE Resin Skived Tape

Standard Specification for PTFE Resin Skived Tape

ABSTRACT
This specification covers four types and two grades of skived tapes in specified thicknesses manufactured by skiving from PTFE resin molding and extrusion materials. The four types covered here are: Type I (premium), normally used for exacting electrical, mechanical, or chemical applications; Type II (general purpose), for electrical, mechanical, and chemical applications not requiring premium material; Type III (commercial), for non-critical chemical, electrical, and mechanical applications; and Type IV (utility), having no electrical requirements, and with mechanical properties at lower level. Subsequently, all four types may be subdivided into Grade 1, which is made only from virgin resin, and Grade 2, which may be made using reprocessed resin, or a mixture of virgin and reprocessed resin. Appropriately sampled specimens shall be tested and conform accordingly to the following physical requirements: dimension (length, width, and thickness); melting point; tensile properties (tensile strength and elongation at break); specific gravity; dielectric strength; and non-dielectric strength failure mode electrical flaws.
SCOPE
1.1 This specification covers skived tape in thicknesses from 0.013 to 6.35 mm [0.0005 to 0.250 in.] manufactured by skiving (Note 1) from PTFE resin molding and extrusion materials.
Note 1—Skiving is the process of continuously shaving a film on a lathe from the outer surface to the core of a molded cylindrical tube of material.
Note 2—Abbreviations have been approved from Terminology D 1600.
1.2 The values stated in inch-pound units are to be regarded as standard. The values given in brackets are for information only.
1.3 The following hazard caveat pertains only to the test method portion, Section , of this specification:This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.
Note 3—This specification and ISO 13000-1 and ISO 13000-2 differ in approach or detail, and data obtained using either may not be technically equivalent.

General Information

Status
Historical
Publication Date
31-Mar-2006
ICS
83.140.10 - Films and sheets
Technical Committee
D20 - Plastics
Drafting Committee
D20.15 - Thermoplastic Materials
Current Stage
Ref Project

Relations

Replaces
ASTM D3308-01 - Standard Specification for PTFE Resin Skived Tape
Effective Date
01-Apr-2006
Replaced By
ASTM D3308-12 - Standard Specification for PTFE Resin Skived Tape
Effective Date
01-Aug-2012
Referred By
ASTM F336-02(2023) - Standard Practice for Design and Construction of Nonmetallic Enveloped Gaskets for Corrosive Service
Effective Date
01-Apr-2006

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ASTM D3308-06 - Standard Specification for PTFE Resin Skived TapeASTM D3308-06 - Standard Specification for PTFE Resin Skived Tape
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ASTM D3308-06 - Standard Specification for PTFE Resin Skived Tape
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation:D3308 −06
StandardSpecification for
1
PTFE Resin Skived Tape
This standard is issued under the fixed designation D3308; 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 (´) 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* D792 Test Methods for Density and Specific Gravity (Rela-
tive Density) of Plastics by Displacement
1.1 This specification covers skived tape in thicknesses
D882 Test Method for Tensile Properties of Thin Plastic
from 0.013 to 6.35 mm [0.0005 to 0.250 in.] manufactured by
Sheeting
skiving (Note 1) from PTFE resin molding and extrusion
D883 Terminology Relating to Plastics
materials.
D1389 Test Method for Proof-Voltage Testing of Thin Solid
NOTE 1—Skiving is the process of continuously shaving a film on a
Electrical Insulating Materials
lathe from the outer surface to the core of a molded cylindrical tube of
D1600 Terminology forAbbreviatedTerms Relating to Plas-
material.
tics
NOTE 2—Abbreviations have been approved from Terminology D1600.
D3892 Practice for Packaging/Packing of Plastics
1.2 The values stated in inch-pound units are to be regarded
D4894 Specification for Polytetrafluoroethylene (PTFE)
as standard. The values given in brackets are for information
Granular Molding and Ram Extrusion Materials
only.
2.2 ISO Standards:
1.3 The following hazard caveat pertains only to the test
ISO 13000-1 Plastics—Polytetrafluorethylene (PTFE) Semi-
method portion, Section 8, of this specification: This standard
3
Finished Products Part 1: Requirements and Designation
does not purport to address all of the safety concerns, if any,
ISO 13000-2 Plastics—Polytetrafluorethylene (PTFE)
associated with its use. It is the responsibility of the user of this
Semi-Finished Products Part 2: Preparation of Specimens
standard to establish appropriate safety and health practices
3
and Determination of Properties
and determine the applicability of regulatory limitations prior
to use.
3. Terminology
NOTE 3—This specification and ISO 13000-1 and ISO 13000-2 differ in
3.1 Definitions:
approach or detail, and data obtained using either may not be technically
Definitions are in accordance with Terminology D883 unless
equivalent.
otherwise specified.
2. Referenced Documents
3.2 Definitions of Terms Specific to this Standard:
2
3.2.1 lot, n—One production run, or a uniform blend of two
2.1 ASTM Standards:
or more production runs.
D149 Test Method for Dielectric Breakdown Voltage and
3.2.2 film, n—full-width material received as finished film.
Dielectric Strength of Solid Electrical Insulating Materials
1
3.2.3 Mil, n— ⁄1000 (0.001) of an inch.
at Commercial Power Frequencies
D374 Test Methods for Thickness of Solid Electrical Insu-
4. Classification
lation
D618 Practice for Conditioning Plastics for Testing
4.1 This specification covers four types of PTFE resin
D638 Test Method for Tensile Properties of Plastics
skived tape:
4.1.1 Type I—Premium; normally used for exacting
electrical, mechanical, or chemical applications.
1
This specification is under the jurisdiction of ASTM Committee D20 on
4.1.2 Type II—General purpose; for electrical, mechanical,
Plastics and is the direct responsibility of Subcommittee D20.15 on Thermoplastic
and chemical applications not requiring premium material.
Materials (Section D20.15.12).
4.1.3 Type III—Commercial; for non-critical chemical,
Current edition approved April 1, 2006. Published June 2006. Originally
approved in 1974. Last previous edition approved in 2001 as D3308 - 01. DOI:
electrical, and mechanical applications.
10.1520/D3308-06.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
3
Standards volume information, refer to the standard’s Document Summary page on Available from American National Standards Institute, 25 W. 43rd St., 4th
the ASTM website. Floor, New York, NY 10036.
*A Summary of Changes section appears at the end of this standard
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
D3308−06
TABLE 1 Width Tolerances for Skived Tape TABLE 2 Thickness Tolerances for Skived Tape
Width Tolerance Thickness Tolerance
mm in. mm in. mm in. mm in.
Up to 12.700 Up to 0.500 −0/+0.510 −0/+0.020 0.013 to 0.025 0.0005 to 0.0010 ±0.003 ±0.0001
12.701 to 25.400 0.501 to −0/+0.640 −0/+0.025 0.028 to 0.076 0.0011 to 0.0030 ±0.008 ±0.0003
1.000 0.091 to 0.254 0.0036 to 0.0100 ±0.013 ±0.0005
25.401 to 50.800 1.001 to −0/+0.890
...

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1.1 This practice is intended for use in the fabrication of ring-type test specimens to be used in the evaluation of the mechanical properties of reinforcement and resins in a composite structure. The practice outlines the steps in the preparation of the test specimens, including the final specimen machining where applicable. Three final ring configurations are included.  
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This specification covers nonrigid, unsupported vinyl chloride plastic film and sheeting in which the resin portion of the composition contains at least 90 % vinyl chloride. The remaining 10 % may include one or more monomers copolymerized with vinyl chloride, or consist of other resins mechanically blended together with poly(vinyl chloride) or copolymers thereof. The film and sheeting covered herein shall be 0.075 to 0.25 mm (3 to 10 mils) in thickness for film and greater than 0.25 mm in thickness for sheet, and shall include the stabilizers and plasticizers necessary to meet the requirements of this specification. The material may be transparent, translucent, or opaque, and may be plain, printed, embossed, or otherwise surface treated. This specification designates three general-purpose types of vinyl chloride film and sheeting - calendered, extruded, and cast. The materials shall be tested for its tensile strength and elongation at rapture, tear resistance, volatile loss, water extraction, low temperature impact, burning rate, shrinkage, and color fastness to rubbing.
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1.2 The vinyl chloride plastic film and sheeting covered herein shall be 0.075 to 0.25 mm (3 to 10 mils) in thickness for film and greater than 0.25 mm in thickness for sheeting. The film and sheeting shall include the stabilizers and plasticizers necessary to meet the requirements of this specification. This specification covers transparent, translucent, or opaque film and sheeting that is plain, printed, embossed, or otherwise surface treated.  
1.3 The values stated in SI units are to be regarded as the standard.  
1.4 The following safety hazards caveat pertains only to the test methods portion, Section 10, of this specification: This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.
Note 1: There is no known ISO equivalent to this standard.  
1.5 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

  • Technical specification
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  • Technical specification
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    English language
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