ASTM C1367-2019 Standard Test Method for Dead Load Resistance of a Sealant in Elevated Temperatures.pdf

1、Designation: C1367 06 (Reapproved 2012)C1367 19Standard Test Method forDead Load Resistance of a Sealant in ElevatedTemperatures1This standard is issued under the fixed designation C1367; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revis

2、ion, 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 covers a laboratory procedure for determining the heat resistance of sealants. This

3、test method is conductedunder dead load in a shear mode. This test method was previously written to include only hot applied sealants.1.2 The values stated in SI units are to be regarded as the standard. The values given in parentheses are provided for informationpurposes only.1.3 This standard does

4、 not purport to address all of the safety concerns, if any, associated with its use. It is the responsibilityof the user of this standard to establish appropriate safety safety, health, and healthenvironmental practices and determine theapplicability of regulatory limitations prior to use.1.4 The su

5、bcommittee with jurisdiction of this standard is not aware of any similar or equivalent ISO standard.1.5 This international standard was developed in accordance with internationally recognized principles on standardizationestablished in the Decision on Principles for the Development of International

6、 Standards, Guides and Recommendations issuedby the World Trade Organization Technical Barriers to Trade (TBT) Committee.2. Referenced Documents2.1 ASTM Standards:2B209 Specification for Aluminum and Aluminum-Alloy Sheet and PlateC717 Terminology of Building Seals and SealantsC1036 Specification for

7、 Flat GlassC1375 Guide for Substrates Used in Testing Building Seals and Sealants3. Terminology3.1 DefinitionsDefinitions of the following terms used in this test method are found in Terminology C717, 4.1: adhesivefailure, cohesive failure, hot-applied sealant, sealant, standard conditions, and subs

8、trate.3.2 Definitions of Terms Specific to This StandardDefinitions of the following terms used in this test method are found inTerminology C717, 4.2: applicator and specified temperature.4. Summary of Test Method4.1 The sealant is placed between glass and aluminum substrates. The specimen condition

9、ing time is recorded. The specimenis heated in shear mode with a weight suspended from the specimen. The weight applied and the time that it takes for the specimento fail is recorded.5. Significance and Use5.1 Sealants are generally subjected to stresses in end-use applications. This test method mea

10、sures the heat resistance of sealantswhen subjected to dead load shear stresses while under heat.1 This test method is under the jurisdiction ofASTM Committee C24 on Building Seals and Sealants and is the direct responsibility of Subcommittee C24.30 on Adhesion.Current edition approved Jan. 1, 2012J

11、an. 1, 2019. Published January 2012February 2019. Originally approved in 1997. Last previous edition approved in 20062012 asC136706. 06 (2012). DOI: 10.1520/C1367-06R12.10.1520/C1367-19.2 For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM Customer Service at serviceast

12、m.org. For Annual Book of ASTM Standardsvolume information, refer to the standards Document Summary page on the ASTM website.This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Becaus

13、eit 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 versionof the standard as published by ASTM is to be considered the official document.Copyright ASTM International, 100 Bar

14、r Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States16. Apparatus6.1 Sealant Applicator or Oven, capable of maintaining the sealant within 62.8C (65F) of the specified temperature.6.2 Substrates:6.2.1 Annealed glass that is 25.4 mm wide by 76.2 mm long and 6.35 mm thick (1 in

15、. by 3 in. by 0.25 in.). (See SpecificationC1036.)6.2.2 Aluminum alloy 5052-H32 that is 25.4 mm wide by 76.2 mm long and 0.508 mm thick (1 in. by 3 in. by 0.020 in.). (SeeSpecification B209.)6.2.3 Other substrates may be used when specified (Fig. 1).6.3 Template, to provide 3.28-mm (18-in.) sealant

16、thickness (Fig. 2).6.4 Hot Knife or Spatula.6.5 Test Oven, capable of maintaining specified temperature within 62.8C (65F). This oven must contain some apparatus forsuspending the specimens in shear mode during testing. Automatic timing devices and recorders may be used to record the timeit takes fo

17、r the test specimens to shear apart.7. Sampling7.1 Sealant shall be free of external surface contaminants such as talc, oil, dust, and moisture. Handling of the sealant surfacesin contact with the substrate shall be minimized.7.2 Condition not less than 250 g of sealant (and sufficient portion of ot

18、her components, if a multicomponent) in a closedcontainer for 24 h at 23 6 2C(73.4 6 3.6F) and 50 6 5% relative humidity.standard conditions.8. Test Specimens8.1 Prepare five test specimens from the bulk sample by using the applicator or oven method.8.1.1 Applicator Method:8.1.1.1 Clean the glass an

19、d aluminum surfaces according to the procedures set forth in Guide C1375.FIG. 1 Assembly of Test Sealant on SubstratesC1367 1928.1.1.2 Using the appropriate die or nozzle, apply a 25.4 by 25.4-mm (1 by 1-in.) layer of sealant onto one end of the glasssurface at a thickness that when compressed will

20、comply with 8.1.1.4. All substrates shall be at a temperature of 23 6 2C (73.46 3.6F). Apply the sealant at the temperature specified by the sealant manufacturer.8.1.1.3 Immediately after sealant application, place the aluminum substrate onto the sealant to form an overlap of 6.45 cm2(1in.2) (Fig. 1

21、).8.1.1.4 Using a template (Fig. 2), compress the overlayed sealant to form a 3.18-mm (18-in.) thick overlap (Fig. 3).8.1.1.5 Remove excess sealant from the specimen with a hot knife or spatula.8.1.2 Oven Method:8.1.2.1 Clean the glass surface according to the procedures set forth in Guide C1375.8.1

22、.2.2 Place sufficient sealant onto the substrate so that when compressed, a 6.45-cm2 (1-in.2) overlap that will comply with8.1.2.5 is obtained.8.1.2.3 Clean the aluminum substrate according to the procedures set forth in Guide C1375.NOTE 1The template shall be made of a material of low thermalconduc

23、tivity, such as wood or fiberglass.FIG. 2 TemplateFIG. 3 Test Assembly on Template After CompressionC1367 1938.1.2.4 Separately place both the glass with sealant and the overlapping aluminum into an oven and condition for 30 min at thespecified application temperature.8.1.2.5 Immediately upon removi

24、ng the substrates from the oven, place the aluminum substrate onto the sealant over the glasssubstrate (Fig. 1). Using the template (Fig. 2), compress the overlayed sealant to form a 3.18-mm (18-in.) thick overlap (Fig. 3).8.1.2.6 Remove excess sealant from the specimen with a hot knife or spatula.8

25、.2 When the specimens are ready to handle, either because they have cooled or have been allowed to cure at specifiedconditions, cover the end of the glass substrate with several layers of masking tape. Press the tape firmly onto the glass. Cut smallrectangular areas out of the tape so that the glass

26、 substrate can be seen.8.3 When the specimens are ready for testing, prepare the aluminum end to hold a 500-g (1.10-lb) weight for the duration ofthe test. This can be done by drilling or punching a hole at the end of the aluminum substrate (centering the hole). This hole isused for suspending the 5

27、00-g test weight. Alternatively, the end can be punched to create a raised surface or otherwise modifiedto allow suspension of the weight.9. Conditioning9.1 Condition all test specimens at 23 6 2C (73.4 6 3.6F) and 50 6 10 % relative humidity standard conditions for at least24 h prior to testing.9.2

28、 Additional conditioning may be done as specified by mutual agreement between the purchaser and sealant manufacturer.10. Procedure10.1 Suspend the glass end of the specimen in the oven set at the specified test temperature 62.8C ( 65F). Clips can beattached to the glass (over the cut out rectangle)

29、and suspended from the top of the oven. Clamps may also be used or any devicethat allows the specimens to hang vertically during the test.10.2 Attach a 500-g (1.10-lb) weight to the aluminum end of the specimen. Some weights have hooks permanently attached.Alternatively, any device that allows the w

30、eight to hang vertically during the test may be used.10.3 Close the oven door and maintain the specified test temperature for the duration of the test.10.4 Record the time in minutes to shear failure of the specimens.10.5 Examine the shears and record the type of failure, adhesive or cohesive, and p

31、ercentage of each.NOTE 1The oven must be at the specified test temperature before suspending specimens. The specimens should be suspended as quickly as possibleto avoid excessive heat loss. The oven should be monitored to ensure that the specified test temperature is maintained for the duration of t

32、his test method.11. Report11.1 Report the following information:11.1.1 Sealant name and any other identifying characteristics,11.1.2 Equipment used to apply the sealant,11.1.3 Specified test temperature and load applied,11.1.4 Average time to failure in minutes,11.1.5 Type of failure, adhesive or co

33、hesive, and percentage of each,11.1.6 Any substrate deformation during testing and the degree of deformation,11.1.7 Sealant application temperature,11.1.8 Oven temperature and time of conditioning,11.1.9 Substrates tested,11.1.10 Substrate cleaning procedure, and11.1.11 Any additional conditioning a

34、s allowed by 9.2.12. Precision and Bias12.1 The precision and bias of this test method are based on data obtained from four laboratories using aluminum and glasssubstrates and three sealants. Both applicator and oven methods were used and the mode of failure on all samples was cohesive.12.2 The repe

35、atability (within a given laboratory) interval for three materials tested by four laboratories is 4.314 min. In futureuse of this test method, the difference between two test results obtained in the same laboratory on the same material will beexpected to exceed 4.314 min only about 5 % of the time.1

36、2.3 The reproducibility (between given laboratories) interval for three materials tested by four laboratories is 31.562 min. Infuture use of this test method, the difference between two test results obtained in a different laboratory on the same material willbe expected to exceed 31.562 min only abo

37、ut 5 % of the time.C1367 19413. Keywords13.1 dead load shear; heat resistance; time to failureASTM 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 determinat

38、ion of the validity of any such patent rights, 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 withd

39、rawn.Your comments are invited either for 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

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