1、Designation: C1382 11Standard Test Method forDetermining Tensile Adhesion Properties of Sealants WhenUsed in Exterior Insulation and Finish Systems (EIFS)Joints1This standard is issued under the fixed designation C1382; the number immediately following the designation indicates the year oforiginal a
2、doption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.1. Scope1.1 This test method describes a laboratory procedure formeasuring tensil
3、e adhesion properties of sealants to exteriorinsulation and finish systems (EIFS) under dry, wet, frozen,heat-aged, and artificial weather-aged conditions.1.2 The committee with jurisdiction over this standard is notaware of any comparable standards published by other orga-nizations.1.3 The values s
4、tated in SI units are to be regarded as thestandard. The inch-pound values given in parentheses areprovided for information only.1.4 This standard does not purport to address all of thesafety concerns, if any, associated with its use. It is theresponsibility of the user of this standard to establish
5、 appro-priate safety and health practices and determine the applica-bility of regulatory limitations prior to use.1.5 The committee with jurisdiction over this standard is notaware of any comparable standards published by other orga-nizations.2. Referenced Documents2.1 ASTM Standards:2C717 Terminolo
6、gy of Building Seals and SealantsC1135 Test Method for Determining Tensile AdhesionProperties of Structural SealantsC1442 Practice for Conducting Tests on Sealants UsingArtificial Weathering ApparatusE177 Practice for Use of the Terms Precision and Bias inASTM Test MethodsE631 Terminology of Buildin
7、g ConstructionsE691 Practice for Conducting an Interlaboratory Study toDetermine the Precision of a Test MethodG113 Terminology Relating to Natural andArtificial Weath-ering Tests of Nonmetallic MaterialsG151 Practice for Exposing Nonmetallic Materials in Ac-celerated Test Devices that Use Laborator
8、y Light SourcesG154 Practice for Operating Fluorescent Light Apparatusfor UV Exposure of Nonmetallic MaterialsG155 Practice for Operating XenonArc LightApparatus forExposure of Non-Metallic Materials3. Terminology3.1 Definitions:3.1.1 Refer to Terminology C717 for definitions of thefollowing terms u
9、sed in this test method: adhesion failure,cohesive failure, primer, sealant, and substrate.3.1.2 Refer to Terminology G113 for definitions of termsrelating to natural and artificial weathering.3.2 Description of Terms Specific to This Standardrefer toTerminology E631 for definitions of the following
10、 terms usedin this test method: base coat, EIFS, and finish coat.4. Summary of Test Method4.1 This test method is a modification of Test MethodC1135. Preliminary testing using Test Method C794 may behelpful as a screen test to determine dry adhesion capabilitiesand priming requirements before procee
11、ding with this test.This test is performed after the specimen assemblies aresubjected to a variety of conditions that artificially acceleratethe effect of weathering impact on the sealant-to-EIFS bond.The conditioning employed in this test does not necessarilyaddress all field conditions.5. Signific
12、ance and Use5.1 EIFS are barrier-type systems that must be weather-proofed to prevent the passage of moisture, air, dust, heat, andcold from entering a structure.1This test method is under the jurisdiction ofASTM Committee C24 on BuildingSeals and Sealants and is the direct responsibility of Subcomm
13、ittee C24.30 onAdhesion.Current edition approved July 1, 2011. Published August 2011. Originallyapproved in 1997. Last previous edition approved in 2005 as C138205. DOI:10.1520/C1382-11.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceas
14、tm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.5.2 This test method is intended to determine the adhesionpr
15、operties of the sealant with the EIFS substrate as determinedby its tensile adhesive properties for dry, wet, frozen, heat-aged, and artificial weather-aged conditions.6. Apparatus and Materials6.1 Tensile Testing MachineCapable of producing a ten-sile load on the specimen at the rate of 506 5 mm (2
16、.0 6 0.20in.)/min., and with a recording chart to show stress/strainvalues (tensile modulus).6.1.1 Fixed MemberA fixed or essentially stationarymember carrying one grip.6.1.2 Movable MemberA movable member carrying asecond grip.6.1.3 GripsThe grips should be suitable to firmly graspthe test fixture
17、that holds the test specimen and should bedesigned to eliminate eccentric specimen loading. Specimenloading should be perpendicular to the substrate/sealant inter-faces. For alignment purposes, each grip shall have a swivel oruniversal joint at the end nearest to the specimen.6.1.4 Grip FixtureA fix
18、ture capable of being held by thegrips and furnishing a tensile force to the sealant specimen.6.2 SpatulasFor use in applying sealant.6.3 Caulking GunFor extruding sealant from cartridges,when applicable.6.4 Primer, if applicable.6.5 Sealant.6.6 SpacerOne piece of spacer made from polytetrafluo-reth
19、ylene (PTFE) or a suitable rigid material shall be used towhich the test sealant will not bond.6.7 Knife, with sharp razor-type blade.6.8 Masking Tape.6.9 EIFS substrates, as identified in 10.1.5.6.10 Rigid substrate, for applying EIFS coating in the peeladhesion test.6.11 Waterproof membrane, such
20、as molten paraffin.6.12 Freezer, 186 2C (0 6 3.6F).6.13 Oven,706 2C (158 6 3.6F).6.14 Exposure ApparatusChoice of type of apparatusshall be by mutual agreement among the interested parties.Because of differences in test conditions, test results may differwith the type of apparatus used. Consult Prac
21、tices G154 andG155 for differences in the spectral power distributions of theexposure sources and Practice C1442 for the differences in testparameters in the two types of apparatus specified.6.14.1 Fluorescent UV/Condensation Apparatus,asde-scribed in Practice C1442, Section 7.3.6.14.2 Xenon Arc Lig
22、ht Apparatus, as described in PracticeC1442, Section 7.2.7. Test Specimens7.1 Two (2) EIFS samples are required for each test speci-men assembly as shown in Fig. 1. The EIFS sample size shallbe determined by the size of the test machine grips, yet theymust be a minimum of 25 by 75 mm (1 by 3 in.). I
23、t may benecessary to cut the EIFS substrate into rectangles appropri-ately sized for the test. If cutting is required, the EIFS must beconfigured such that three of the four long ends of the EIFSsubstrate will be coated with EIFS base or finish coat. Theremaining long end and two short ends will be
24、uncoated EPSboard with cut edges of the EIFS coating visible. In all cases,the sealant should be applied to the EIFS finish on a long sideat the edge where a coated surface continues around the corner.The sealant should not be applied on the edge where coatingstops and EPS board is exposed on the ad
25、joining corner.7.2 The EIF system being tested must be applied overminimum 25 mm (1 in.) insulation board with coating thick-ness consistent with the EIFS manufacturers requirements andallowed to cure 28 days minimum at standard conditions.Select surface to be tested (for example, EIFS primer, basec
26、oat, finish coat, etc.).NOTE 1Five test specimen assemblies per condition should be pre-pared for each sealant and substrate system being tested for a total of 25specimens per sealant/EIFS substrate combination. It may be beneficial toprepare up to five extra specimen assemblies in the event one or
27、moresamples is unusable.7.3 Prior to assembling the test specimens, clean the sur-faces to be sealed with a clean, dry, lint-free cloth or soft,nonmetallic bristle brush.7.4 Prime surfaces (if applicable) to be sealed with appro-priate primer as recommended by the sealant manufacturer. Donot allow p
28、rimer to contact EPS insulation.Allow primer to dryas specified by sealant manufacturer.7.5 Provide a 12 mm (;12 in.) spacer to form a sealantcavity centered on the test specimen measuring 12 by 12 by 50mm (12 by12 by 2 in.) between the test samples. (See Fig. 1.)7.6 Sandwich the spacer between the
29、two test samples andsecure them together with clamps or mechanical devices.7.7 Fill each set of five test specimen assemblies with thesealant being tested and immediately strike off any excesssealant.7.8 Identify each of the five test specimens.7.9 Cure specimens under one of the following cycles:7.
30、9.1 Standard Conditions23 6 2C (73.4 6 3.6 F), 506 5 % relative humidity for a minimum of 21 days.7.9.2 Alternately, cure for a total of 21 days as follows: (a)7 days at standard conditions above; (b) 7 days at 38 6 2C(100 6 3.6 F) and 95 % relative humidity; (c) 7 days atstandard conditions.7.9.3 T
31、he sealant manufacturer may request conditionsother than those specified provided the temperature does notexceed 50C (122F).8. Conditioning8.1 Following completion of cure as outlined in 7.9, testsamples under the following conditions:8.1.1 Dry/Room TemperatureTest samples at 23 6 2C(73.4 6 3.6 F),
32、50 6 5 % relative humidity.8.1.2 Water Immersion:8.1.2.1 Prior to immersing samples, seal perimeter edgesand the outer (nonsealant surface face) of each EIFS compo-nent of the test specimen with a waterproof membrane such asmolten paraffin. Do not heat the paraffin above 65C (150F) inorder to avoid
33、damage to EPS insulation. The interior facingsurfaces that create the 12-mm (12 in.) gap will not be waxed.(See Fig. 2) Multiple dips or turns may be required toadequately cover the substrate.C1382 1128.1.2.2 Completely immerse 5 test specimen assemblies for7 days. Weight or attach the samples so th
34、at they are com-pletely covered to a depth of 50 mm (2 in.) with water. Testwithin 5 min of removal from water.8.1.3 FrozenCondition five test specimen assemblies in a18 6 2C (0 6 3.6F) freezer for 24 h. Remove assembliesone at a time. Test each assembly within 5 min of removal fromthe freezer.8.1.4
35、 Heat ConditioningCondition five test specimen as-semblies in a 70 6 2C (158 6 3.6F) oven for 24 h. Removeassemblies one at a time. Test each assembly within 5 min ofremoval from the oven.8.1.5 Condition five test specimen assemblies in the artifi-cial weathering device with the sealant surface (top
36、 of joint)facing the exposure source and positioned in accordance withthe manufacturers recommendations for specimen mounting.FIG. 1 Test Specimen AssemblyC1382 113Specimens should be confined to an exposure area in which theirradiance is at least 90 % of the irradiance at the center of theexposure
37、area. Unless it is known that irradiance uniformitymeets this requirement, use one of the procedures described inPractice G151, Section 5.1.4 to ensure equal radiant exposureon all specimens or compensation for differences within theexposure chamber. If the specimens do not completely fill theracks,
38、 fill the empty spaces with blank metal panels to maintainthe test conditions within the chamber.8.1.5.1 Operate the fluorescent UV device in accordancewith the procedure in Practice C1442, Section 7.3. Position theassemblies as shown in Fig. 3 and expose for 2500 h.FIG. 2 Test Specimen Assembly of
39、Water Immersion SamplesC1382 114FIG. 3 Position of Test Specimens for UV/Condensation ExposureC13821158.1.5.2 Operate the xenon arc device in accordance with theprocedure in Practice C1442, Section 7.2. The exposed face ofthe assemblies is positioned in accordance with the manufac-turers recommendat
40、ions for specimen mounting. Expose for2500 h when operated at an irradiance level of 0.51 W/(m2.nm)at 340 nm. (At an irradiance level of 0.35 W/(m2.nm) at 340nm, expose for 3643 h. SeeAnnexA1.2.1 in Practice C1442 forthe formula to calculate exposure time at other irradiancelevels.)NOTE 2The test cy
41、cles have been used by historical convention andmay not adequately simulate the effects of outdoor exposure of sealants.Other cycles can be used by mutual agreement of all concernced parties.NOTE 3Refer to Practice G151 for full cautionary guidance regardinglaboratory weathering of nonmetallic mater
42、ials.8.1.5.3 After exposure, condition samples in laboratory for16 h minimum at standard conditions.9. Procedure9.1 Measure and record the initial distance between theEIFS substrates prior to loading.9.2 Place the test specimen assembly in the grips of thetensile test machine and test at a rate of 5
43、0 mm 6 5 mm (2.06 0.20 in.)/min.9.3 Record the tensile load at 10, 25, 50, and 100 %elongation (based on measurement obtained in 9.1) Othercoincidence points may be recorded as desired. Stop theextension at 100 % elongation. If failure occurs prior to 100 %elongation, record elongation and tensile l
44、oad at failure point.9.4 Measure and record adhesive or cohesive failures, ifeither occurs.10. Report10.1 The report shall include the following information foreach sample tested:10.1.1 Sample identification,10.1.2 Sealant identification (single versus multicomponent,color, chemical category, etc.),
45、10.1.3 Actual conditioning time as used in 8.1,10.1.4 Surface preparation (if used, primer identification),10.1.5 EIFS identification including base coat thickness,type, and amount of mix water. Describe surface tested (such asEIFS primer, base coat, finish coat, etc.),10.1.6 Tensile Adhesion Testin
46、g Data:10.1.6.1 Tensile load in Newtons (pounds-force) at eachelongation point described in 9.3,10.1.6.2 The percentage loss in bond and cohesion for eachsample tested. Note failure mode,10.1.6.3 Variation, if any, from the test procedure,10.1.7 Freezer temperature,10.1.8 Type, manufacturer and mode
47、l of artificial weather-ing apparatus used, and10.1.9 Irradiance level and actual time (number of hours) inweathering apparatus.11. Precision and Bias11.1 The precision of this test method is based on aninterlaboratory study of Test Method C1382 conducted in1996. Each of four laboratories tested thr
48、ee different sealantsand three primers under varying environmental conditions.Every “test result” represents an individual determination.Each participating laboratory was instructed to submit fivereplicate test results for one, two, or three different sealantprimer combinations. Except for the limit
49、ed number of report-ing laboratories, Practice E691 was followed for the design andanalysis of the data; the details are given in ASTM ResearchReport No. C24-1059.311.1.1 Repeatability Limit (r)Two test results obtainedwithin one laboratory shall be judged not equivalent if theydiffer by more than the “r” value for that material; “r”istheinterval representing the critical difference between two testresults for the same material, obtained by the same operatorusing the same equipment on the same day in the samelaboratory.11.1.1.1 Repea
