1、Designation: C 1369 07Standard Specification forSecondary Edge Sealants for Structurally Glazed InsulatingGlass Units1This standard is issued under the fixed designation C 1369; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the y
2、ear 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 specification describes the properties of cold,liquid-applied, single or multi-component, chemically curi
3、ng,elastomeric sealants used as the secondary seal of sealedinsulating glass units, hereinafter referred to as the “sealant”(see Fig. 1). These sealants are intended to be a structuralcomponent of sealed insulating glass (IG) units used instructural sealant glazing (hereinafter referred to as SSG).T
4、ypical designs and considerations can be found in GuideC 1249. Presently only certain silicone sealants are recognizedas having the necessary durability for use as secondary sealantin IG units in SSG applications.1.2 This specification does not describe all of the necessaryproperties of the sealant.
5、 Only those properties for which thereare ASTM test methods and industry-agreed-upon minimumacceptable test requirements are described by this specification.Additional properties will be added as ASTM test methods forthese properties become available.1.3 This specification only addresses the durabil
6、ity of thesecondary edge sealants for structurally glazed insulating glassunits. Durability of sealed insulating glass units can be found inspecifications and guides that reside within ASTM CommitteeE06.1.4 The committee with jurisdiction for this standard is notaware of any comparable standard publ
7、ished by other organi-zations.1.5 The values stated in SI units are to be regarded as thestandard. The values given in parentheses are for informationpurposes only.2. Referenced Documents2.1 ASTM Standards:2C 603 Test Method for Extrusion Rate and Application Lifeof Elastomeric SealantsC 639 Test Me
8、thod for Rheological (Flow) Properties ofElastomeric SealantsC 661 Test Method for Indentation Hardness ofElastomeric-Type Sealants by Means of a DurometerC 679 Test Method for Tack-Free Time of ElastomericSealantsC 717 Terminology of Building Seals and SealantsC 792 Test Method for Effects of Heat
9、Aging on WeightLoss, Cracking, and Chalking of Elastomeric SealantsC 1135 Test Method for Determining Tensile AdhesionProperties of Structural SealantsC 1184 Specification for Structural Silicone SealantsC 1249 Guide for Secondary Seal for Sealed InsulatingGlass Units for Structural Sealant Glazing
10、ApplicationsC 1265 Test Method for Determining the Tensile Propertiesof an Insulating Glass Edge Seal for Structural GlazingApplications3. Terminology3.1 DefinitionsRefer to Terminology C 717 for definitionsof the following terms used in this specification: chemicallycuring sealant, compatibility, c
11、ure, cured, elastomeric, hard-ness, non-sag sealant, sealant, shelf life, silicone sealant, andsubstrate.4. Classification of Sealants4.1 A sealant qualifying under this specification shall beclassified as to type and use as follows:4.1.1 Type SA single-component sealant.4.1.2 Type MA multi-componen
12、t sealant.4.1.3 Use GA sealant that meets the requirements of thisspecification when tested on clear, uncoated float glass sub-strates.4.1.4 Use OA sealant that meets the requirements of thisspecification when tested on coatings3such as reflective andlow-emissivity metallic materials applied to glas
13、s substrates.5. Materials and Manufacture5.1 Sealant:1This specification is under the jurisdiction of ASTM Committee C24 onBuilding Seals and Sealants and is the direct responsibility of Subcommittee C24.10on Specifications, Guides and Practices.Current edition approved Nov. 1, 2007. Published Novem
14、ber 2007. Originallyapproved in 1997. Last previous edition approved in 2002 as C 136902.2For 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 Summ
15、ary page onthe ASTM website.3Reflective and low-emissivity metallic materials are typical coatings applied tothe glass substrate. If the coatings are edge deleted for actual production, theyshould be edge deleted for use in this specification.1Copyright ASTM International, 100 Barr Harbor Drive, PO
16、Box C700, West Conshohocken, PA 19428-2959, United States.5.1.1 Furnish single-component sealants as a homogeneousmixture of a consistency suitable for application. Apply thesealant in strict accordance with the written recommendationsof the sealant manufacturer. The cured sealant shall be anelastom
17、eric solid.5.1.2 Multi-component sealants shall be mixed in the cor-rect ratio4of components and delivered by appropriate equip-ment as specified by the sealant manufacturer.6. Requirements6.1 The physical, mechanical, and performance propertiesof the sealant shall conform to the requirements descri
18、bed inTable 1.6.2 The standard substrate for this specification is clear,uncoated float glass. If metallic coated5glass substrates are tobe qualified by this specification, they shall be tested by TestMethod C 1135 as required in 8.1.6.6.3 The sealant shall be compatible with the components ofthe ed
19、ge seal.7. Significance and Use7.1 Not all sealants meeting this specification should bepresumed to be suitable for all applications and all substrates.This specification assists in selecting sealants that meet certainminimum standards of performance.7.2 This specification does not evaluate the adhe
20、sion of thesecondary sealant to the IG unit spacer. Adhesion of thesecondary sealant to the spacer is generally considered neces-sary for the successful performance of the IG unit edge seal.7.3 When specifying a sealant using this specification, it isessential that the applicable type and use also b
21、e included in therequirements. This will ensure that the proper sealant isprovided for the intended use.7.4 IG units qualified by this specification shall have a lowmoisture vapor transmission sealant for a primary seal and astructural silicone sealant for a secondary seal.4If the mix ratio of multi
22、-component sealant is not within the sealant manufac-turers recommendations, the cure rate, tack free time, cohesive strength, andadhesive strength of the sealant can be adversely affected.5Metallic coatings that require a sealed air space are typically edge deleted inregular production. They must a
23、lso be edge deleted for this testing.FIG. 1 Cutaway Section of IG Unit Edge SealTABLE 1 Requirements for Physical, Mechanical, and Performance Qualities of the SealantProperty Requirements Test MethodExtrudability 10 s, max C 603Rheological, max C 639Vertical 4.8 mm (316 in.)Horizontal noneHardness,
24、 Shore A 20 to 60 C 661Heat Aging C 792Weight Loss, max 10 %Cracking noneChalking noneDurabilityTensile Value, min 8.1.6Standard Conditions 345 kPa (50 psi)88C (190F) 345 kPa (50 psi)29C (20F) 345 kPa (50 psi)Water Immersion 345 kPa (50 psi)5000h Weathering 345 kPa (50 psi)Shelf Life, min 6 months 8
25、.1.7C13690727.5 This specification does not address appropriate sealantstiffness since the appropriate stiffness is a function of theparticular insulating glass system in which the sealant is used(that is, varies with spacer, shape and set back, and sealantconfiguration). Test Method C 1265 can assi
26、st in evaluatingthese aspects of the sealant in a particular IG system.8. Test Methods8.1 Sealant:8.1.1 ExtrudabilitySee Test Method C 603.8.1.2 Rheological PropertiesSee Test Method C 639, us-ing test procedures for Type II and IV sealants.8.1.3 HardnessSee Test Method C 661, using a Type A-2durome
27、ter.8.1.4 Heat AgingSee Test Method C 792, using a tem-perature of 88 6 5C (190 6 10F).8.1.5 Tack Free TimeSee Test Method C 679.8.1.6 DurabilitySee Test Method C 1135 as modified in8.6 through 8.6.2.5 of Specification C 1184. (See Table 1.)8.1.7 Shelf LifeMeet the requirements of Table 1 when these
28、alant has been stored in original, unopened container(s) attemperatures in accordance with recommendations from themanufacturer.9. Keywords9.1 edge sealant; IG unit; insulating glass; secondary seal-ant; structural glazingAPPENDIX(Nonmandatory Information)X1. COMMENTARYX1.1 This specification does n
29、ot address all the perfor-mance criteria necessary for an adequate technical descriptionof structural silicone sealants used in insulating glass units.Some important performance criteria not evaluated in thisspecification include: durability, fatigue cycling, ultimate elon-gation, shear value, and l
30、ong-term dead load capacity.X1.2 Input is requested from users of this specification inhelping to identify, as well as develop, future performancecriteria. Your participation is critical to the timely developmentof this specification.X1.3 At the time of initial publication of this specification,it w
31、as decided that publishing this specification in its presentform was necessary for the use by the structural glazingindustry even though it is acknowledged to be incomplete andstill under development.ASTM International takes no position respecting the validity of any patent rights asserted in connec
32、tion with any item mentionedin this standard. Users of this standard are expressly advised that determination 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 responsib
33、le technical committee and must be reviewed every five years andif not revised, either reapproved or withdrawn. 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 con
34、sideration 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
35、Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959,United States. Individual reprints (single or multiple copies) of this standard may be obtained by contacting ASTM at the aboveaddress or at 610-832-9585 (phone), 610-832-9555 (fax), or serviceastm.org (e-mail); or through the ASTM website(www.astm.org).C1369073
