Standard Test Method for Extrusion Rate of Elastomeric Sealants

SIGNIFICANCE AND USE
Sealants are supplied with various rheological properties ranging from pourable liquids to nonsagging pastes. Single-component sealants are supplied ready for use upon opening the container. Multicomponent sealants are supplied as a base component(s) and a curing agent separately packaged. After mixing the two or more parts, the sealant is ready for application. This test method is intended to provide a means to measure the extrusion rate spanning the range of rheological properties.
This test method also covers the option of measuring the freeze-thaw and heat stability of such sealants.
This test method provides for an option of either a metal or plastic nozzle. It is intended that the metal nozzle be used when greater precision is required, such as in ASTM specifications. The plastic nozzle may be used for general screening of sealant properties or for developmental purposes when a large number of test specimens are being tested.
This test method measures the volume of sealant extruded in 1 min at a given pressure (kPa or psi).
SCOPE
1.1 This test method covers two laboratory procedures for determining the extrusion rate of elastomeric sealants for use in building construction.
1.2 The values states in metric units are to be regarded as the standard. The values in parentheses are for information only.
1.2 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.
1.3 There is no known ISO equivalent to this test method.

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Publication Date
30-Apr-2004
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ASTM C1183-04 - Standard Test Method for Extrusion Rate of Elastomeric Sealants
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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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:C1183 –04
Standard Test Method for
1
Extrusion Rate of Elastomeric Sealants
This standard is issued under the fixed designation C1183; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision.Anumber in parentheses indicates the year of last reapproval.A
superscript epsilon (e) indicates an editorial change since the last revision or reapproval.
1. Scope mixing the two or more parts, the sealant is ready for
application.This test method is intended to provide a means to
1.1 This test method covers two laboratory procedures for
measure the extrusion rate spanning the range of rheological
determiningtheextrusionrateofelastomericsealantsforusein
properties.
building construction.
4.2 Thistestmethodalsocoverstheoptionofmeasuringthe
1.2 The values states in metric units are to be regarded as
freeze-thaw and heat stability of such sealants.
the standard. The values in parentheses are for information
4.3 Thistestmethodprovidesforanoptionofeitherametal
only.
or plastic nozzle. It is intended that the metal nozzle be used
1.3 This standard does not purport to address all of the
when greater precision is required, such as in ASTM specifi-
safety concerns, if any, associated with its use. It is the
cations. The plastic nozzle may be used for general screening
responsibility of the user of this standard to establish appro-
of sealant properties or for developmental purposes when a
priate safety and health practices and determine the applica-
large number of test specimens are being tested.
bility of regulatory limitations prior to use.
4.4 This test method measures the volume of sealant ex-
1.4 There is no known ISO equivalent to this test method.
truded in 1 min at a given pressure (kPa or psi).
2. Referenced Documents
5. Apparatus
2
2.1 ASTM Standards:
5.1 High Density Polyethylene Cartridge, with plunger and
C717 Terminology of Building Seals and Sealants
cap, 177 mL(6 fluid oz) capacity, with the front end having an
D1475 Test Method for Density of Liquid Coatings, Inks
inside diameter of 13.7 6 0.05 mm (0.540 6 0.002 in.).
and Related Products
5.2 Nozzle.
D2452 Test Method for Extrudability of Oil- and Resin-
5.2.1 Metal Nozzle, threaded to fit threaded end of polyeth-
Base Caulking Compounds
ylene cartridge with the dimensions given in Fig. 1.
1
3. Terminology
5.2.2 Polyethylene Cartridge Nozzle,64mm(2 ⁄2 in.) in
1
length with 3–mm ( ⁄8 –in.) orifice
3.1 Definitions—See Terminology C717 for applicable
5.3 Air Supply, to provide 280 6 7 kPa (40 6 1 psi)
definitions of the following terms: caulking, compound, elas-
pressurewithappropriatefittingsandairlinestoattachtoanair
tomeric and nonsag sealant, sealant, latex sealant.
powered gun for convenience of use.
4. Significance and Use
5.4 Caulking Gun, 177 mL (6 fluid oz) capacity, air pow-
ered.
4.1 Sealantsaresuppliedwithvariousrheologicalproperties
5.5 Freezer, capable of maintaining −17 6 1°C (0 6 2°F).
ranging from pourable liquids to nonsagging pastes. Single-
5.6 Circulating Air Oven, capable of maintaining 50 6 1°C
component sealants are supplied ready for use upon opening
(122 6 2°F).
the container. Multicomponent sealants are supplied as a base
5.7 Time Device, a clock or stop-watch graduated in sec-
component(s) and a curing agent separately packaged. After
onds.
5.8 Small Container, can, cup, and so forth, as receiver for
1
ThistestmethodisunderthejurisdictionofASTMCommitteeC24onBuilding
extruded sealant.
Seals and Sealants and is the direct responsibility of Subcommittee C24.20 on
5.9 Balance, accurate to 60.1 g (0.035 oz).
General Test Methods.
5.10 Pycnometer, or suitable apparatus to obtain a specific
CurrenteditionapprovedMay1,2004.PublishedJuly2004.Originallyapproved
in 1991. Last previous edition approved in 1997 as C1183-91(1997). gravity.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
5.11 Thermometer.
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
5.12 Spatula.
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 ----------------------
C1183 –04
Numberofgrams 60seconds
3
Numberofseconds 1minute
1 Numberofmilliliters
3 5
specificgravity minutes
8. Procedure B
8.1 Subject the sealant in its original container to 5 freeze-
thaw cycles, each cycle consisting of 16 h at −17 6 1°C (0 6
2°F) and8hat23 6 1°C (73.4 6 2°F), followed by 7 days at
50 6 1°C (122 6 2°F).
8.2 Condition the sealant which is still in its original
container, for a minimum of 5 days at 23 6 1°C (73.4 6 2°F)
and 50 6 5 % relative humidity.
8.3 Condition the polyethylene cartridge for a min
...

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