Standard Test Method for Flow Characteristics of Preformed Tape Sealants

SIGNIFICANCE AND USE
5.1 Tape sealants are tacky, deformable solids, which are used under compression between two or more surfaces of similar or dissimilar substrates in a variety of sealing applications. These tapes are normally supplied in a roll form with a release paper interlever and are hand pressed against a fixed substrate. This procedure is designed to give an indication of the flow characteristics of a tape sealant under controlled temperature and aging conditions with a specified load.
SCOPE
1.1 This test method describes a laboratory procedure for determining the flow characteristics of preformed tape sealants after a specified time, temperature, and load.  
1.2 The values stated in SI units are to be regarded as the standard. The inch-pound units given in parentheses are provided for information purposes only.  
1.3 The committee with jurisdiction of this specification is not aware of any similar specification within ISO or any other organization.  
1.4 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.

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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.
Designation: C1266 − 17
Standard Test Method for
1
Flow Characteristics of Preformed Tape Sealants
This standard is issued under the fixed designation C1266; 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.
1. Scope After 24 h the height of the test assembly is measured again to
determine the flow of the sample.
1.1 This test method describes a laboratory procedure for
determining the flow characteristics of preformed tape sealants
5. Significance and Use
after a specified time, temperature, and load.
5.1 Tape sealants are tacky, deformable solids, which are
1.2 The values stated in SI units are to be regarded as the
used under compression between two or more surfaces of
standard. The inch-pound units given in parentheses are
similar or dissimilar substrates in a variety of sealing applica-
provided for information purposes only.
tions. These tapes are normally supplied in a roll form with a
1.3 The committee with jurisdiction of this specification is
release paper interlever and are hand pressed against a fixed
not aware of any similar specification within ISO or any other
substrate. This procedure is designed to give an indication of
organization.
the flow characteristics of a tape sealant under controlled
1.4 This standard does not purport to address all of the temperature and aging conditions with a specified load.
safety concerns, if any, associated with its use. It is the
6. Apparatus
responsibility of the user of this standard to establish appro-
priate safety and health practices and determine the applica-
6.1 Aluminum Plates, four, each 6.35 by 76.2 by 101.6 mm
bility of regulatory limitations prior to use.
(0.25 by 3.00 by 4.00 in.).
6.2 Lead Weights, two, each 3.63 kg (8.0 lb) with dimen-
2. Referenced Documents
sions large enough to cover the entire assembly, but not
2
2.1 ASTM Standards:
overhanging the assembly.
C717 Terminology of Building Seals and Sealants
6.3 Mechanical Convection Oven, capable of maintaining a
3. Terminology
temperature of 88 6 1°C (190 6 2°F).
3.1 Definitions—The definitions of the following terms used
6.4 Steel Spacers,six,each76.2by5.08by5.08 60.05mm
in this test method are found inTerminology C717: compound,
(3.00 by 0.20 by 0.20 6 0.002 in.).
seal, sealant, standard conditions, substrate and tape sealant.
6.5 Thickness Gage, having a total capacity of at least 76.2
mm (3.00 in.) graduated in 0.025 mm (0.001 in.) divisions.The
4. Summary of Test Method
gage shall be equipped to provide a 57 g (2 oz) load over a
4.1 The tape sealant to be tested is rolled into spherical balls
minimum contact area of 6.35 mm (0.25 in.).
of equal weight. Four spherical balls are placed between two
6.6 Laboratory Press, at room temperature, to compress the
aluminum plates, which are then compressed. A standard
preformed sealant tape to the proper material thickness.
weight is placed on the test assembly for1hat room
temperature. The height of the test assembly is measured to
6.7 Stop Watch, to measure the timed intervals specified in
determine the rebound of the sample. The test assembly is then the laboratory procedure.
placed in an 88°C (190°F) oven with the standard weight on it.
6.8 Laboratory Precision Balance (capable of weighing to
0.1 mg) to measure the weight of the individual spherical balls
of tape.
1
ThistestmethodisunderthejurisdictionofASTMCommitteeC24onBuilding
Seals and Sealants and is the direct responsibility of Subcommittee C24.20 on
General Test Methods.
7. Sampling
Current edition approved Jan. 1, 2017. Published February 2017. Originally
7.1 Samples to be tested shall be taken from a fresh roll of
approvedin1995.Lastpreviouseditionapprovedin2011asC1266–02(2011).DOI:
10.1520/C1266-17.
tape sealant taken directly from a randomly selected commer-
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
cial container as supplied by the manufacturer, after first
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
removing and discarding approximately the first 0.61 (2 ft) of
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. the roll.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
C1266 − 17
8. Test Assembly Preparation 9. Conditioning
8.1 A total of two assemblies per tape are to be prepared. 9.1 Condition the
...

This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
Designation: C1266 − 02 (Reapproved 2011) C1266 − 17
Standard Test Method for
1
Flow Characteristics of Preformed Tape Sealants
This standard is issued under the fixed designation C1266; 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.
1. Scope
1.1 This test method describes a laboratory procedure for determining the flow characteristics of preformed tape sealants after
a specified time, temperature, and load.
1.2 The values stated in SI units are to be regarded as the standard. The inch-pound units given in parentheses are provided for
information purposes only.
1.3 The committee with jurisdiction of this specification is not aware of any similar specification within ISO or any other
organization.
1.4 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.
2. Referenced Documents
2
2.1 ASTM Standards:
C717 Terminology of Building Seals and Sealants
3. Terminology
3.1 Definitions—The definitions of the following terms used in this test method are found in Terminology C717: compound,
seal, sealant, standard conditions, substrate and tape sealant.
4. Summary of Test Method
4.1 The tape sealant to be tested is rolled into spherical balls of equal weight. Four spherical balls are placed between two
aluminum plates, which are then compressed. A standard weight is placed on the test assembly for 1 h at room temperature. The
height of the test assembly is measured to determine the rebound of the sample. The test assembly is then placed in an 88°C (190°F)
oven with the standard weight on it. After 24 h the height of the test assembly is measured again to determine the flow of the
sample.
5. Significance and Use
5.1 Tape sealants are tacky, deformable solids, which are used under compression between two or more surfaces of similar or
dissimilar substrates in a variety of sealing applications. These tapes are normally supplied in a roll form with a release paper
interlever and are hand pressed against a fixed substrate. This procedure is designed to give an indication of the flow characteristics
of a tape sealant under controlled temperature and aging conditions with a specified load.
6. Apparatus
6.1 Aluminum Plates, four, each 6.35 by 76.2 by 101.6 mm (0.25 by 3.00 by 4.00 in.).
6.2 Lead Weights, two, each 3.63 kg (8.0 lb) with dimensions large enough to cover the entire assembly, but not overhanging
the assembly.
1
This test method is under the jurisdiction of ASTM Committee C24 on Building Seals and Sealants and is the direct responsibility of Subcommittee C24.20 on General
Test Methods.
Current edition approved Dec. 1, 2011Jan. 1, 2017. Published January 2012February 2017. Originally approved in 1995. Last previous edition approved in 20072011 as
C1266–02(2007).C1266–02(2011). DOI: 10.1520/C1266-02R11.10.1520/C1266-17.
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 Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1

---------------------- Page: 1 ----------------------
C1266 − 17
6.3 Mechanical Convection Oven, capable of maintaining a temperature of 88 6 1°C (190 6 2°F).
6.4 Steel Spacers, six, each 76.2 by 5.08 by 5.08 6 0.05 mm (3.00 by 0.20 by 0.20 6 0.002 in.).
6.5 Thickness Gage, having a total capacity of at least 76.2 mm (3.00 in.) graduated in 0.025 mm (0.001 in.) divisions. The gage
shall be equipped to provide a 57 g (2 oz) load over a minimum contact area of 6.35 mm (0.25 in.).
6.6 Laboratory Press, at room temperature, to compress the preformed sealant tape to the proper material thickness.
6.7 Stop Watch, to measure the timed intervals specified in the laboratory procedure.
6.8 Laboratory Precision Balance (capable of weighing to 0.1 mg) to measure the weight of the individual spherical balls of
tape.
7. Sampling
7.1 Samples to be tested shall be taken from a fresh roll of tape sealant taken directly from a randomly selected commercial
contain
...

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