Standard Test Method for Extrudability of Oil- and Resin-Base Caulking Compounds

SIGNIFICANCE AND USE
The rate of extrusion determined by this test may be correlated with the rate of gunning of the compound.
SCOPE
1.1 This test method describes the laboratory procedure for determining the rate of extrusion of oil- and resin-base caulking compounds.
1.2 The values stated in metric (SI) units are to be regarded as the standard. The values given in parentheses are provided for information only.
1.3 The subcommittee with jurisdiction is not aware of any similar ISO standard.
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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Publication Date
09-May-2003
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ASTM D2452-03 - Standard Test Method for Extrudability of Oil- and Resin-Base Caulking Compounds
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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:D2452–03
Standard Test Method for
1
Extrudability of Oil- and Resin-Base Caulking Compounds
This standard is issued under the fixed designation D 2452; 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 5.3 Clamps and Stand to hold rheometer.
5.4 Balance, accurate to 0.01 g.
1.1 This test method describes the laboratory procedure for
5.5 Stop Watch.
determining the rate of extrusion of oil- and resin-base caulk-
5.6 Spatula (Steel).
ing compounds.
3
5.7 Weight-per-gallon Cup, capacity 83.2 cm .
1.2 The values stated in metric (SI) units are to be regarded
as the standard. The values given in parentheses are provided
6. Reagent
for information only.
6.1 Solvent, such as methyl ethyl ketone.
1.3 The subcommittee with jurisdiction is not aware of any
similar ISO standard.
7. Sampling
1.4 This standard does not purport to address all of the
7.1 The compound to be tested shall be taken from a
safety concerns, if any, associated with its use. It is the
previously unopened container and thoroughly mixed before
responsibility of the user of this standard to establish appro-
using.
priate safety and health practices and determine the applica-
bility of regulatory limitations prior to use.
8. Conditioning
8.1 After thoroughly cleaning the press-flow rheometer with
2. Referenced Documents
solvent, condition the compound and the rheometer in the
2.1 ASTM Standards:
2 laboratory for at least5hat23 6 2°C (73.4 6 3.6°F).
C 717 Terminology of Building Seals and Sealants
D 1475 Test Method for Liquid Coatings, Inks, and Related
9. Procedure
3
Products
9.1 Remove the orifice holder from the rheometer cylinder
and hold the open end up, making sure that the follower plate
3. Terminology
remains inside.
3.1 Definitions—Definitions of the following terms are
9.2 Fill the cylinder with compound, avoiding air pockets.
found in Terminology C 717: caulking compound, compound,
Strike off the filled cylinder with a spatula and replace the
sealant.
bottom orifice cap. Connect the tube to an air supply and fix it
to a support stand above the balance.
4. Significance and Use
9.3 Adjust the air pressure to 207 kPa (30 psi) and open the
4.1 The rate of extrusion determined by this test may be
air valve. If the pressure drops, readjust to 207 kPa while
correlated with the rate of gunning of the compound.
extrusion is in progress. Close the air valve and discard this
5. Apparatus extruded compound. The apparatus is now ready for testing.
9.4 Open the air valve and start the stop watch simulta-
5.1 Press-Flow Extrusion Rheometer constructed in accor-
neously. After extruding approximately 50 g of compound,
dance with Fig. 1.
close the air valve and stop the stop watch simultaneously.
5.2 Air Supply and Pressure Gage, accurate to 6.9 kPa (1
Weigh to the nearest 0.01 g the amount of compound extruded.
psi).
9.5 Calculate the seconds per gram by dividing the number
of seconds elapsed by the number of grams extruded, and
1
ThistestmethodisunderthejurisdictionofASTMCommitteeC24onBuilding
designate this as value S.
Seals and Sealants, and is the direct responsibility of Subcommittee C24.20 on
9.6 Convert the value S to seconds per millilitre after
General Sealant Standards.
...

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