ASTM C972-00

Standard Test Method for Compression-Recovery of Tape Sealant

SCOPE
1.1 This test method describes a laboratory procedure for determining compression-recovery characteristics of tape sealant.  
1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
1.3 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.

General Information

• Status: Historical
• Publication Date: 09-Jan-2000
• ICS: 91.100.50 - Binders. Sealing materials
• Technical Committee: C24 - Building Seals and Sealants
• Drafting Committee: C24.20 - General Test Methods

Relations

• Replaced By: ASTM C972-00(2006) - Standard Test Method for Compression-Recovery of Tape Sealant
• Effective Date: 01-May-2006
• Referred By: ASTM C1281-16(2023) - Standard Specification for Preformed Tape Sealants for Glazing Applications
• Effective Date: 10-Jan-2000
• Referred By: ASTM C990-09(2019) - Standard Specification for Joints for Concrete Pipe, Manholes, and Precast Box Sections Using Preformed Flexible Joint Sealants
• Effective Date: 10-Jan-2000
• Referred By: ASTM C990M-09(2019) - Standard Specification for Joints for Concrete Pipe, Manholes, and Precast Box Sections Using Preformed Flexible Joint Sealants (Metric) (Withdrawn 2024)
• Effective Date: 10-Jan-2000

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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:C972–00
Standard Test Method for
Compression-Recovery of Tape Sealant
This standard is issued under the fixed designation C 972; 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.
1. Scope 5.2 Steel Panels, two, cold-rolled, each 0.762 by 76.2 by
76.2 mm (0.03 by 3 by 3 in.).
1.1 This test method describes a laboratory procedure for
determining compression-recovery characteristics of tape seal-
NOTE 2—Substitutes such as aluminum, acrylic, acrylonitrile-
ant. butadiene-styrene (ABS), may be substituted for the plates (5.1) and
panels (5.2).
1.2 The values stated in SI units are to be regarded as the
standard. The values given in parentheses are for information
5.3 Compression Testing Machine, with a cross-head speed
only.
of 50 mm (2 in.)/min and capable of stopping at specified
1.3 This standard does not purport to address all of the
settings.
safety concerns, if any, associated with its use. It is the
NOTE 3—Load values may differ when determined on screw-type
responsibility of the user of this standard to establish appro-
versus spring-type test machines due to a drift past the desired stop in the
priate safety and health practices and determine the applica-
spring-type machine. It may be necessary to use shims to obtain the
bility of regulatory limitations prior to use. Table 1
desired stop.
NOTE 1—There are no ISO standards similar or equivalent to this
5.4 Recorder, for recording compression loads in newtons
ASTM standard.
(or pounds-force).
5.5 Stop Watch, measuring in minutes and seconds.
2. Referenced Documents
5.6 Gage or Rule, capable of measuring tape thickness to
2.1 ASTM Standards:
0.025 mm or 0.001 in.
C 717 Terminology of Building Seals and Sealants
E 177 Practice for Use of the Terms Precision and Bias in
6. Test Specimen and Sample
ASTM Test Methods
6.1 Conditioning:
E 691 Practice for Conducting an Interlaboratory Study to
6.1.1 Condition the specimens for 24 h at 23 6 2°C (73.4 6
Determine the Precision of a Test Method
3.6°F) and 506 10 % relative humidity.
6.1.2 Other conditioning parameters may be included as
3. Terminology
desired.
3.1 Definitions—For definitions of terms used in this test
6.2 Samples to be tested shall be taken from a roll or tape
method, refer to Terminology C 717.
sealant after first removing and discarding approximately the
first 0.6 m (2 ft) of the roll.
4. Significance and Use
6.3 Tapesealantconfigurationshouldbeapproximately9.53
4.1 Tape sealants are tacky, deformable solids used under
by 9.53 by 76.2 mm (0.375 by 0.375 by 3 in.). The sample
compression between two or more surfaces of similar or
should be re-extruded rather than plied to conform to the
dissimilar materials in a variety of sealing applications. This
specified size if the sample does not approximate these
procedure presents an indication of the compression recovery
dimensions.
characteristics of preformed tapes.
6.4 Total tape volume (V) should be calculated (width by
length by thickness) for determination of tape sealant compres-
5. Apparatus
sion index.
5.1 Glass Plates, two, each 6.35 by 76.2 by 76.2 mm (0.25
6.5 Prepare two test specimens for each sample as follows:
by 3 by 3 in.).
6.5.1 Do not clean or unnecessarily handle the surfaces of
surface-treated or painted plate or panels.
1 6.5.2 Clean plates or panels with detergent or solvent, or
ThistestmethodisunderthejurisdictionofASTMCommitteeC24onBuilding
Seals and Sealants and is the direct responsibility of Subcommittee C24.20 on both.
General Sealant Standards.
6.5.3 Place two 76.2 by 9.53 by 9.53-mm (3 by 0.375 by
Current edition approved Jan. 10, 2000. Published April 2000. Originally
0.375-in.) lengths of tape sealant on one of the plates or panels,
published as C 972 – 82. Last previous edition C 972 – 95.
as shown in Fig. 1, and remove the re
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