1、Designation: C 1382 05Standard Test Method forDetermining Tensile Adhesion Properties of Sealants WhenUsed in Exterior Insulation and Finish Systems (EIFS)Joints1This standard is issued under the fixed designation C 1382; the number immediately following the designation indicates the year oforiginal
2、 adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon (e) indicates an editorial change since the last revision or reapproval.1. Scope1.1 This test method describes a laboratory procedure formeasuring ten
3、sile 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 value
4、s stated in SI (metric) units are to be regardedas the standard. 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
5、to establish 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:2C
6、717 Terminology of Building Seals and SealantsC 1135 Test Method for Determining Tensile AdhesionProperties of Structural SealantsC 1442 Practice for Conducting Tests on Sealants UsingArtificial Weathering ApparatusE 631 Terminology of Building ConstructionsG113 Terminology Relating to Natural and A
7、rtificialWeathering Tests of Nonmetallic MaterialsG 151 Practice for Exposing Nonmetallic Materials in Ac-celerated Test Devices that use Laboratory Light SourcesG 154 Practice for Operating Fluorescent Light Apparatusfor UV Exposure to Nonmetallic MaterialsG 155 Practice for Operating Xenon Arc Lig
8、ht Apparatusfor Exposure of Nonmetallic Materials3. Terminology3.1 Definitions:3.1.1 Refer to Terminology C 717 for definitions of thefollowing terms used in this test method: adhesion failure,cohesive failure, primer, sealant, and substrate.3.1.2 Refer to Terminology G113for definitions of termsrel
9、ating to natural and artificial weathering.3.2 Description of Terms Specific to This Standardrefer toTerminology E 631 for definitions of the following 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 MethodC 1135
10、. Preliminary testing using Test Method C 794 may behelpful as a screen test to determine dry adhesion capabilitiesand priming requirements before proceeding with this test.This test is performed after the specimen assemblies aresubjected to a variety of conditions that artificially acceleratethe ef
11、fect of weathering impact on the sealant-to-EIFS bond.The conditioning employed in this test does not necessarilyaddress all field conditions.5. Significance and Use5.1 EIFS are barrier-type systems that must be weather-proofed to prevent the passage of moisture, air, dust, heat, andcold from enteri
12、ng a structure.5.2 This test method is intended to determine the adhesionproperties 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 MachineCapa
13、ble of producing a ten-sile load on the specimen at the rate of 506 5 mm (2.0 6 0.20in.)/min., and with a recording chart to show stress/strainvalues (tensile modulus).1This test method is under the jurisdiction ofASTM Committee C24 on BuildingSeals and Sealants and is the direct responsibility of S
14、ubcommittee C24.30 onAdhesion.Current edition approved Jan. 1, 2005. Published January 2005. Originallyapproved in 1997. Last previous edition approved in 2004 as C 138204.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For An
15、nual 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.6.1.1 Fixed MemberA fixed or essentially stationarymember carrying one gri
16、p.6.1.2 Movable MemberA movable member carrying asecond grip.6.1.3 GripsThe grips should be suitable to firmly graspthe test fixture that holds the test specimen and should bedesigned to eliminate eccentric specimen loading. Specimenloading should be perpendicular to the substrate/sealant inter-face
17、s. For alignment purposes, each grip shall have a swivel oruniversal joint at the end nearest to the specimen.6.1.4 Grip FixtureA fixture 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 sea
18、lant from cartridges,when applicable.6.4 Primer, if applicable.6.5 Sealant.6.6 SpacerOne piece of spacer made from polytetrafluo-rethylene (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 substra
19、tes, as identified in 10.1.5.6.10 Rigid substrate, for applying EIFS coating in the peeladhesion test.6.11 Waterproof membrane, such 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 t
20、he interested parties.Because of differences in test conditions, test results may differwith the type of apparatus used. Consult Practices G 154 andG 155 for differences in the spectral power distributions of theexposure sources and Practice C 1442 for the differences in testparameters in the two ty
21、pes of apparatus specified.6.14.1 Fluorescent UV/Condensation Apparatus,asde-scribed in Practice C 1442, Section 7.3.6.14.2 Xenon Arc Light Apparatus, as described in PracticeC 1442, Section 7.2.7. Test Specimens7.1 Two (2) EIFS samples are required for each test speci-men assembly as shown in Fig.
22、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.). It 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
23、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 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 coat
24、ed surface continues around the corner.The sealant should not be applied on the edge where coatingstops and EPS board is exposed on the adjoining 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 manufac
25、turers requirements andallowed to cure 28 days minimum at standard conditions.Select surface to be tested (for example, EIFS primer, basecoat, 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 25
26、specimens per sealant/EIFS substrate combination. It may be beneficial toprepare up to five extra specimen assemblies in the event one or 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 bristl
27、e brush.7.4 Prime surfaces (if applicable) to be sealed with appro-priate primer as recommended by the sealant manufacturer. Donot allow primer 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 t
28、he 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 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 imm
29、ediately strike off any excesssealant.7.8 Identify each of the five test specimens.7.9 Cure specimens under one of the following cycles:7.9.1 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
30、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 The sealant manufacturer may request conditionsother than those specified provided the temperature does notexceed 50C (122F).8. Conditioning8.1 Following completio
31、n 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), 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 comp
32、o-nent of the test specimen with a waterproof membrane such asmolten paraffin. Do not heat the paraffin above 65C (150F) inorder to avoid 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 toa
33、dequately cover the substrate.8.1.2.2 Completely immerse 5 test specimen assemblies for7 days. Weight or attach the samples so that 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
34、 2C (0 6 3.6F) freezer for 24 h. Remove assembliesone at a time. Test each assembly within 5 min of removal fromthe freezer.C13820528.1.4 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
35、 ofremoval from the oven.8.1.5 Condition five test specimen assemblies in the artifi-cial weathering device with the sealant surface (top of joint)facing the exposure source and positioned in accordance withthe manufacturers recommendations for specimen mounting.Specimens should be confined to an ex
36、posure area in which theirradiance is at least 90 % of the irradiance at the center of theexposure area. Unless it is known that irradiance uniformitymeets this requirement, use one of the procedures described inPractice G 151, Section 5.1.4 to ensure equal radiant exposureon all specimens or compen
37、sation for differences within theexposure chamber. If the specimens do not completely fill theracks, 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 C 1442, Section 7
38、.3. Position theassemblies as shown in Fig. 3 and expose for 2500 h.8.1.5.2 Operate the xenon arc device in accordance with theprocedure in Practice C 1442, Section 7.2. The exposed face ofFIG. 1 Test Specimen AssemblyC1382053the assemblies is positioned in accordance with the manufac-turers recomme
39、ndations 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. See Annex A1.2.1 in Practice C 1442for the formula to calculate exposure time at other irradiancelevels.)NOTE 2The
40、test cycles 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 G 151 for full cautionary guidance regardinglaboratory weathering of nonmetall
41、ic materials.8.1.5.3 After exposure, condition samples in laboratory for16 h minimum at standard conditions.FIG. 2 Test Specimen Assembly of Water Immersion SamplesC1382054FIG.3PositionofTestSpecimensforUV/CondensationExposureC13820559. Procedure9.1 Measure and record the initial distance between th
42、eEIFS substrates prior to loading.9.2 Place the test specimen assembly in the grips of thetensile test machine and test at a rate of 50 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 r
43、ecorded as desired. Stop theextension at 100 % elongation. If failure occurs prior to 100 %elongation, record elongation and tensile load 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 s
44、ample tested:10.1.1 Sample identification,10.1.2 Sealant identification (single versus multicomponent,color, chemical category, etc.),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,ty
45、pe, and amount of mix water. Describe surface tested (such asEIFS primer, base coat, finish coat, etc.),10.1.6 Tensile Adhesion Testing 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 teste
46、d. 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 model of artificial weather-ing apparatus used, and10.1.9 Irradiance level and actual time (number of hours) inweathering apparatus.11. Precision and BiasThe precision an
47、d bias of this test method has not yet beendetermined.ASTM International takes no position respecting the validity of any patent rights asserted in connection with any item mentionedin this standard. Users of this standard are expressly advised that determination of the validity of any such patent r
48、ights, and the riskof infringement of such rights, are entirely their own responsibility.This standard is subject to revision at any time by the responsible technical committee and must be reviewed every five years andif not revised, either reapproved or withdrawn. Your comments are invited either f
49、or revision of this standard or for additional standardsand should be addressed to ASTM International Headquarters. Your comments will receive careful consideration at a meeting of theresponsible technical committee, which you may attend. If you feel that your comments have not received a fair hearing you shouldmake your views known to the ASTM Committee on Standards, at the address shown below.This standard is copyrighted by ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959,United States. Individual
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