1、Designation: C1382 16Standard 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.2. Referenced Documents2.1 ASTM Standards:2C717 Terminology of Building Seals and SealantsC1135 Test Method for Determining Tensile Adhesion Prop-erties of Structural SealantsC1442 Pract
6、ice for Conducting Tests on Sealants UsingArtificial Weathering ApparatusE177 Practice for Use of the Terms Precision and Bias inASTM Test MethodsE691 Practice for Conducting an Interlaboratory Study toDetermine the Precision of a Test MethodE2110 Terminology for Exterior Insulation and Finish Sys-t
7、ems (EIFS)G113 Terminology Relating to Natural and Artificial Weath-ering Tests of Nonmetallic MaterialsG151 Practice for Exposing Nonmetallic Materials in Accel-erated Test Devices that Use Laboratory Light SourcesG154 Practice for Operating Fluorescent Ultraviolet (UV)Lamp Apparatus for Exposure o
8、f Nonmetallic MaterialsG155 Practice for Operating Xenon Arc Light Apparatus forExposure of Non-Metallic Materials3. Terminology3.1 Definitions:3.1.1 Refer to Terminology C717 for definitions of termsused in this test method, including but not limited to thefollowing: adhesion failure, cohesive fail
9、ure, primer, sealant,standard conditions, 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 E2110 for definitions of the following terms usedin this test method: ba
10、se 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 proceeding with this test.This test is p
11、erformed 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. Significance and Use5.1 EIFS are barrier-t
12、ype systems that must be weather-proofed to prevent the passage of moisture, air, dust, heat, andcold from entering 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, fr
13、ozen, heat-aged, and artificial weather-aged conditions.1This test method is under the jurisdiction ofASTM Committee C24 on BuildingSeals and Sealants and is the direct responsibility of Subcommittee C24.30 onAdhesion.Current edition approved June 1, 2016. Published July 2016. Originally approvedin
14、1997. Last previous edition approved in 2011 as C138211. DOI: 10.1520/C1382-16.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page o
15、nthe ASTM website.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States16. Apparatus and Materials6.1 Tensile Testing MachineCapable 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 recor
16、ding 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 that holds the test specimen and sho
17、uld 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 fixture capable of being held by thegri
18、ps 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-rethylene (PTFE) or a suitable rigid mat
19、erial 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 as molten paraffin.6.12 Freezer, 186
20、 2C (0 6 3.6F).6.13 Oven, 70 6 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 Practices G154 andG155 for differences
21、 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, as de-scribed in Practice C1442, Section 7.3.6.14.2 Xenon Arc Light Apparatus, as described in Pr
22、acticeC1442, 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.). It may benecessary to cut the EIF
23、S 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 coat, primed base coat,or finish coat. The remaining long end and two short ends willbe uncoated
24、EPS board with cut edges of the EIFS coatingvisible. In all cases, the sealant should be applied to the EIFSbase coat, primed base coat, or finish coat on a long side at theedge where a coated surface continues around the corner. Thesealant should not be applied on the edge where coating stopsand EP
25、S 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 manufacturers requirements andallowed to cure 28 days minimum at standard conditions.Select surface to be tested (for
26、 example, EIFS primer, basecoat, finish coat, etc.).NOTE 1Five test specimen assemblies per condition should beprepared for each sealant and substrate system being tested for a total of25 specimens per sealant/EIFS substrate combination. It may be beneficialto prepare up to five extra specimen assem
27、blies 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 bristle brush.7.4 Prime surfaces (if applicable) to be sealed with appro-priate primer as recommended by the sealant m
28、anufacturer. 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 the test specimen measuring 12 by 12 by 50mm (12 by12 by 2 in.) between the test samples. (See Fig. 1.)7.6 Sandwi
29、ch 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 immediately strike off any excesssealant.7.8 Identify each of the five test specimens.7.9 Cure specimens under one
30、of the following cycles:7.9.1 Cure at standard conditions 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 The sealant manu
31、facturer 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 standardconditions.8.1.2 Water Immersi
32、on: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 damage to EPS insulation. The interior facings
33、urfaces that create the 12-mm (12 in.) gap will not be waxed.C1382 162(See Fig. 2) Multiple dips or turns may be required toadequately 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
34、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 Heat ConditioningCondition five test specimen
35、 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 of joint)facing the exposure source and posit
36、ioned in accordance withthe manufacturers recommendations for specimen mounting.Specimens should be confined to an exposure area in which theirradiance is at least 90 % of the irradiance at the center of theFIG. 1 Test Specimen AssemblyC1382 163exposure area. Unless it is known that irradiance unifo
37、rmitymeets 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, fill the empty spaces with blank metal panels
38、 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.8.1.5.2 Operate the xenon arc device in accordance with theprocedure in Practic
39、e C1442, Section 7.2. The exposed face ofthe assemblies is positioned in accordance with the manufac-turers recommendations for specimen mounting. Expose forFIG. 2 Test Specimen Assembly of Water Immersion SamplesC1382 164FIG.3PositionofTestSpecimensforUV/CondensationExposureC1382 1652500 h when ope
40、rated 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 cycles have been used by historical convention andmay n
41、ot 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 materials.8.1.5.3 After exposure, condition samples in lab
42、oratory 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 50 mm 6 5 mm (2.06 0.20 in.)/min.9.3 Record the tensil
43、e 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 load at failure point.9.4 Measure and record adhesive
44、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.),10.1.3 Actual conditioning time as used in 8.1,10.1.4
45、 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 Testing Data:10.1.6.1 Tensile load in Newtons (pounds-force
46、) 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 model of artificial weather-ing apparatus used, and10.1.9
47、 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 three different sealantsand three primers under varying
48、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 limited number of report-ing laboratories, Practice E691 w
49、as 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 Repeatability limits are listed in Tables 1-20.11.1.2 Reproduc
