ASTM C603-14(2019)

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: C603 − 14 (Reapproved 2019)
Standard Test Method for
Extrusion Rate and Application Life of Elastomeric
Sealants
This standard is issued under the fixed designation C603; 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 U.S. Department of Defense.
1. Scope 3. Terminology
1.1 This test method covers two laboratory procedures for 3.1 Refer to Terminology C717 for definitions of the fol-
determining the extrusion rate and application life (or “pot lowing terms used in this standard: standard conditions.
life”) of elastomeric chemically curing sealants for use in
building construction. 4. Significance and Use
4.1 The results obtained by this test method are simply a
NOTE 1—These sealants are supplied with various rheological proper-
ties ranging from pourable liquids to nonsagging pastes. Single-
measure of the time required to extrude a known volume of
componentsealantsaresuppliedreadyforuseuponopeningthecontainer,
sealant through a known orifice under a predetermined pres-
and their rate of cure is determined by the climatic conditions to which
sure.
they are exposed. Multicomponent sealants are supplied as a base
component and a curing agent separately packaged. After mixing the two
4.2 This test method is not considered a measure of cure
parts, the sealant is ready for application, and curing begins immediately.
rate.
1.2 The values stated in SI units are to be regarded as the
standard. The values given in parentheses are provided for 5. Apparatus
information only.
5.1 Caulking Gun, 177-mL (6-fl oz) capacity, air-powered.
1.3 There is no known ISO equivalent to this test method.
5.2 PolyethyleneCartridge, 177-mL(6-fl oz), with the front
1.4 This standard does not purport to address all of the
end having an inside diameter of 13.7 6 0.05 mm (0.540 6
safety concerns, if any, associated with its use. It is the
0.002 in.).
responsibility of the user of this standard to establish appro-
5.3 Air Supply, providing 345 kPa (50-psi) pressure and
priate safety, health, and environmental practices and deter-
having the necessary connection fittings for attachment to the
mine the applicability of regulatory limitations prior to use.
air-powered caulking gun.
1.5 This international standard was developed in accor-
5.4 Timing Device (clock or watch), calibrated in seconds.
dance with internationally recognized principles on standard-
ization established in the Decision on Principles for the
5.5 500-mL (1-pt) Container.
Development of International Standards, Guides and Recom-
mendations issued by the World Trade Organization Technical
6. Procedure
Barriers to Trade (TBT) Committee.
6.1 Extrusion Rate of Single-Component Sealant—First
condition the unopened container for at least 16 h at standard
2. Referenced Documents
conditions. Then place a sufficient amount of sealant into the
2.1 ASTM Standards:
177-mL(6-fl oz) cartridge to fill it completely with the plunger
C717 Terminology of Building Seals and Sealants
in place, fully retracted. Using no nozzle on the cartridge, gun
the sealant at 345 kPa (50-psi) pressure into the 500-mL (1-pt)
container, measuring the time in seconds required to empty the
ThistestmethodisunderthejurisdictionofASTMCommitteeC24onBuilding
cartridge.
Seals and Sealants and is the direct responsibility of Subcommittee C24.20 on
General Test Methods.
NOTE 2—When the printed instructions of the sealant manufacturer so
Current edition approved Jan. 1, 2019. Published January 2019. Originally
recommended, heat the sealant before extruding it into the container.
approved in 1969. Last previous edition approved in 2014 as C603 - 14. DOI:
10.1520/C0603-14R19.
6.2 Extrusion Rate or Application Life or both, of Mixed
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
Multicomponent Sealant—First condition the unopened con-
contact ASTM Cust
...