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.
1.3 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.
1.4 There is no known ISO equivalent to this test method.

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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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(Reapproved 2008)
Standard Test Method for
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 (´) 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
only.
4.3 Thistestmethodprovidesforanoptionofeitherametal
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.
1.4 There is no known ISO equivalent to this test method.
4.4 This test method measures the volume of sealant ex-
truded in 1 min at a given pressure (kPa or psi).
2. Referenced Documents
2.1 ASTM Standards:
5. Apparatus
C717Terminology of Building Seals and Sealants
5.1 High Density Polyethylene Cartridge, with plunger and
D1475Test Method For Density of Liquid Coatings, Inks,
cap, 177 mL(6 fluid oz) capacity, with the front end having an
and Related Products
inside diameter of 13.7 6 0.05 mm (0.540 6 0.002 in.).
D2452TestMethodforExtrudabilityofOil-andResin-Base
5.2 Nozzle.
Caulking Compounds
5.2.1 Metal Nozzle, threaded to fit threaded end of polyeth-
3. Terminology
ylene cartridge with the dimensions given in Fig. 1.
5.2.2 Polyethylene Cartridge Nozzle, 64 mm (2 ⁄2 in.) in
3.1 Definitions—SeeTerminologyC717forapplicabledefi-
length with 3–mm ( ⁄8 –in.) orifice
nitions of the following terms: caulking, compound, elasto-
meric and nonsag sealant, sealant, latex sealant.
5.3 Air Supply,toprovide280 67kPa(40 61psi)pressure
with appropriate fittings and air lines to attach to an air
4. Significance and Use
powered gun for convenience of use.
4.1 Sealantsaresuppliedwithvariousrheologicalproperties
5.4 Caulking Gun, 177 mL (6 fluid oz) capacity, air pow-
ranging from pourable liquids to nonsagging pastes. Single-
ered.
component sealants are supplied ready for use upon opening
5.5 Freezer, capable of maintaining −17 6 1°C (0 6 2°F).
the container. Multicomponent sealants are supplied as a base
component(s) and a curing agent separately packaged. After
5.6 Circulating Air Oven, capable of maintaining 50 6 1°C
(122 6 2°F).
5.7 Time Device, a clock or stop-watch graduated in sec-
ThistestmethodisunderthejurisdictionofASTMCommitteeC24onBuilding
Seals and Sealants and is the direct responsibility of Subcommittee C24.20 on
onds.
General Test Methods.
5.8 Small Container, can, cup, and so forth, as receiver for
Current edition approved May 1, 2008. Published June 2008. Originally
approved in 1991. Last previous edition approved in 2004 as C1183-04. DOI:
extruded sealant.
10.1520/C1183-04R08.
For referenced ASTM standards, visit the ASTM website, www.astm.org, or 5.9 Balance, accurate to 60.1 g (0.035 oz).
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
5.10 Pycnometer, or suitable apparatus to obtain a specific
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. gravity.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
C1183 − 04 (2008)
extruded in less than 60 s, note the length of time required and
calculate the volume of sealant that would have been extruded
in 60 s as follows:
Numberofgrams 60seconds
Numberofseconds 1 minute
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).
FIG. 1 Metal Nozzle Dimensions
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)
5.11 Thermometer.
and 50 6 5 % relative humidity.
5.12 Spatula.
8.3 Condition the polyethylene cartridge for a minimum of
16 h at the same conditons as specified in 8.3.2.
6. Test Conditions
8.4 Place a sufficient amount of sealant into the polyethyl-
6.1 Unless otherwise specified by those authorizing the
enecartridgetofillitcompletelywiththeplungerinplace,and
tests, standard conditions as defined by Terminology C717
level with the back of the cartridge.
shall be used.
8.5 Attachthenozzletothecartridge;connecttheairsupply
7. Procedure A and immediately extrude a small amount of material to
completely fill the nozzle. Wipe off the end of the nozzle with
7.1 Condition the unopened container of sealant for at least
a paper towel.
16 h at standard conditions.
8.6 Extru
...


This document is not anASTM standard and is intended only to provide the user of anASTM 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:C1183 –91(Reapproved 1997) Designation:C1183 –04 (Reapproved 2008)
Standard Test Method for
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 (´) indicates an editorial change since the last revision or reapproval.
1. 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.
1.3 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.
1.4 There is no known ISO equivalent to this test method.
2. Referenced Documents
2.1 ASTM Standards:
C717 Terminology of Building Seals and Sealants
D1475 Test Method forFor Density of Liquid Coatings, Inks, and Related Products
D2452 Test Method for Extrudability of Oil- and Resin-Base Caulking Compounds
3. Terminology
3.1 Definitions—SeeTerminologyC717forapplicabledefinitionsofthefollowingterms:caulking,compound,elastomericand
nonsag sealant, sealant, latex sealant.
4. Significance and Use
4.1 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)andacuringagentseparatelypackaged.Aftermixingthetwoormoreparts,thesealantisreadyforapplication.This
test method is intended to provide a means to measure the extrusion rate spanning the range of rheological properties.
4.2This test method measures the volume of sealant extruded in 1 min at a given pressure (kPa or psi).
4.2 This test method also covers the option of measuring the freeze-thaw and heat stability of such sealants.
4.3 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.
4.4 This test method measures the volume of sealant extruded in 1 min at a given pressure (kPa or psi).
5. Classification of Sealants
5.1The sealant shall be classified by type as follows:
5.1.1Type S—single-component sealant, and
5.1.2Type M—multi-component sealant.
6.Apparatus
6.1
This test method is under the jurisdiction of ASTM Committee C-24 on Building Seals and Sealants and is the direct responsibility of Subcommittee C24.32 on
Chemically Curing Sealants.
Current edition approved April 15, 1991. Published June 1991.
This test method is under the jurisdiction ofASTM Committee C24 on Building Seals and Sealants and is the direct responsibility of Subcommittee C24.20 on General
Test Methods.
Current edition approved May 1, 2008. Published June 2008. Originally approved in 1991. Last previous edition approved in 2004 as C1183-04.
ForreferencedASTMstandards,visittheASTMwebsite,www.astm.org,orcontactASTMCustomerServiceatservice@astm.org.For Annual Book of ASTM Standards
, Vol 04.07.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.
C1183 –04 (2008)
5.1 High Density Polyethylene Cartridge , with plunger and cap, 177 mL (6 fluid oz) capacity, with the front end having an
inside diameter of 13.7 6 0.05 mm (0.540 6 0.002 in.).
6.2
5.2 Nozzle.
5.2.1 Metal Nozzle, threaded to fit threaded end of polyethylene cartridge with the dimensions given in Fig. 1.
6.3
1 1
5.2.2 Polyethylene Cartridge Nozzle,64mm(2 ⁄2 in.) in length with 3–mm ( ⁄8 –in.) orifice
5.3 Air Supply, to provide 280 6 7 kPa (40 6 1 psi) pressure with appropriate fittings and air lines to attach to an air powered
gun for convenience of use.
6.4
5.4 Caulking Gun, 177 mL (6 fluid oz) capacity, air powered.
6.5
5.5 Freezer, capable of maintaining −17 6 1°C (0 6 2°F).
5.6 Circulating Air Oven, capable of maintaining 50 6 1°C (122 6 2°F).
5.7 Time Device, a clock or stop-watch graduated in seconds.
6.6
5.8 Small Container, can, cup, and so forth, as receiver for extruded sealant.
6.7
5.9 Balance, accurate to 60.1 g (0.035 oz).
6.8
5.10 Pycnometer, or suitable apparatus to obtain a specific gravity.
6.9
5.11 Thermometer.
6.10
5.12 Spatula.
7.
6. Test Conditions
7.1Unless otherwise specified by those authorizing the tests, standard conditions for all tests are 23 6 2°C (73.4 6 3.6°F) and
50 6 5% relative humidity.
8.Procedure
8.1Type S (Single-Component)
8.1.1Condition the unopened container of sealant for at least 16 h at standard conditions.
8.1.2Determine the specific gravity of the sealant as described in Test Method D2452 or D1475, or use another scientifically
correct technique.
8.1.3Place a sufficient amount of sealant into the polyethylene cartridge to fill it completely with the plunger in place, and level
with the back of the cartridge.
6.1 Unless otherwise specified by those authorizing the tests, standard conditions as defined by Terminology C717 shall be
used.
7. Procedure A
7.1 Condition the unopened container of sealant for at least 16 h at standard conditions.
FIG. 1 Metal Nozzle Dimensions
C1183 –04 (2008)
7.2 Determine the specific gravity of the sealant as described in Test Methods D2452 or D1475, or use another scientifically
correct technique. For multiple component systems, mix 100 g sealant (4 oz) with the proper amount of curing agent.
NOTE1—The cartridge filling is most easily accomplished by extruding the sealant into the test cartridge through the nozzle end. Avoid any air
entrapment as this will significantly affect the accuracy of the results.
8.1.4Attachthenozzletothecartridge,connecttheairsupplyandimmediatelyextrudeasmallamountofmaterialtocompletely
fill the nozzle. Wipe off the end of the nozzle with a paper towel.
8.1.5Extrude the sealant at 280 6 7 kPa (40 6 1 psi) pressure into the preweighed container (nearest 0.1 g) for 60 s. Make sure
all of the material that has exited the end of the nozzle is in the container.
8.1.6Weighthecontainertothenearest0.1gandsubtracttheinitialweight,toobtaintheweightoftheextrudedsealant.Convert
the weight of the sealant to volume of sealant by dividing the weight by the specific gravity. If all the material is extruded in less
than 60 s, note the length of time required and calculate the volume of sealant that would have been extruded in 60 s as follows:
1—Curing times and conditions for multicomponent mixed compounds may vary. Therefore, the length of time between mixing
the components and testing the extrusion rate may vary. Record the time from mix completion to the start of the extrusion test.
7.3 For multiple c
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