1、Designation: C1281 14Standard Specification forPreformed Tape Sealants for Glazing Applications1This standard is issued under the fixed designation C1281; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revision. A
2、 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 specification describes preformed tape sealants foruse in glazing applications. These materials are generally usedto serve as com
3、ponents of glazing systems. They are intendedto serve as a water and air barrier.1.2 This specification is not intended for preformed foamtape sealants.1.3 The values stated in SI units are to be regarded as thestandard. The values in parentheses are provided for informa-tion purposes only.1.4 The s
4、ubcommittee with jurisdiction is not aware of anysimilar ISO standard.1.5 The following precautionary statement pertains only tothe test method section of this specification.This standard doesnot purport to address all of the safety concerns, if any,associated with its use. It is the responsibility
5、of the user of thisstandard to establish appropriate safety and health practicesand determine the applicability of regulatory limitations priorto use.2. Referenced Documents2.1 ASTM Standards:2C717 Terminology of Building Seals and SealantsC765 Test Method for Low-Temperature Flexibility of Pre-form
6、ed Tape SealantsC771 Test Method for Weight Loss After Heat Aging ofPreformed Tape SealantsC772 Test Method for Oil Migration or Plasticizer Bleed-Out of Preformed Tape SealantsC879 Test Methods for Release Papers Used with PreformedTape SealantsC908 Test Method for Yield Strength of Preformed TapeS
7、ealantsC972 Test Method for Compression-Recovery of Tape Seal-antC1016 Test Method for Determination of Water Absorptionof Sealant Backing (Joint Filler) MaterialC1266 Test Method for Flow Characteristics of PreformedTape Sealants3. Terminology3.1 DefinitionsThe definitions of the following terms us
8、edin this specification are found in Terminology C717: compres-sion seal, glazing, standard conditions, tape sealant.4. Materials and Manufacturers4.1 The preformed tape sealant shall be composed ofappropriate raw materials to result in conformance to thisspecification.4.2 The preformed tape sealant
9、 shall be of uniform dimen-sions and consistency.4.3 When properly applied, this material shall form a seal toprevent air and water from entering the system.5. Requirements5.1 The tape sealant in the original unopened container shallmeet the requirements of this specification and remain suitablefor
10、use for a minimum of 12 months from the date ofmanufacture when stored at a temperature of 26.6C (80F)maximum.5.2 Physical PropertiesThe physical properties of thematerial shall conform to the requirements specified in Table 1.6. Significance and Use6.1 This specification describes only preformed ta
11、pe seal-ants for glazing applications. Their use is specific underglazing systems to serve as a water and air barrier. The testmethods chosen are to determine their efficiency in this use.This specification does not describe all required properties ofthe preformed tape sealants. It should be recogni
12、zed by thepurchaser and design professional that not all preformed tapesealants meeting this specification are suitable for all applica-tions. In some instances, additional requirements will be agreedto by the supplier and user.1This specification is under the jurisdiction of ASTM Committee C24 onBu
13、ilding Seals and Sealants and is the direct responsibility of Subcommittee C24.10on Specifications, Guides and Practices.Current edition approved June 1, 2014. Published July 2014. Originally approvedin 1994. Last previous edition approved in 2009 as C1281 03(2009). DOI:10.1520/C1281-14.2For referen
14、ced 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 onthe ASTM website.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Co
15、nshohocken, PA 19428-2959. United States17. Sampling7.1 The preformed tape sealant to be tested for conformancewith the requirements of this specification shall be takendirectly from a randomly selected commercial container assupplied by the manufacturer.8. Test Methods8.1 All test methods described
16、 in the following paragraphs,unless otherwise indicated, shall be performed in a laboratorycontrolled at standard conditions. This preformed tape sealantsample shall be conditioned at standard conditions for at least24 h before laboratory tests are performed.8.2 Low Temperature FlexibilityTest Metho
17、d C765.8.3 Weight LossTest Method C771.8.4 Vehicle MigrationTest Method C772.8.5 Backing RemovalTest Method C879.8.6 Yield StrengthTest Method C908.8.7 Compression/RecoveryTest Method C972.8.8 Water AbsorptionTest Method C1016, Procedure A,with Section 10.1.5 modified as follows: after immersion for
18、 24h, remove the specimen by picking it up 75 mm (3 in.) from theends and blotting gently with an absorbent paper towel, takingcare not to squeeze or press the specimen while blotting.Within 1 min., place the specimen on the weighing platformand record the mass of the specimen to the nearest 0.1 g (
19、0.004oz.).8.9 Flow TestTest Method C1266.9. Packaging and Package Marking9.1 Unless otherwise specified in the contract or order, thematerial shall be packaged in standard commercial containersconstructed to ensure acceptance by common or other carrierfor safe transportation to the point of delivery
20、.9.2 Shipping containers shall be marked with the name,grade, and quantity of the material contained therein, as definedby the contract or order under which the shipments are made.The name of the manufacturer, the lot and batch number of thecontract or order, and the date of manufacture shall also b
21、eshown.10. Keywords10.1 glazing; glazing tapes; preformed tape sealant; tapespecificationASTM 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 o
22、f 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 withdrawn.
23、 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 comm
24、ents 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 reprints (single or
25、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). Permission rights to photocopy the standard may also be secured from the Copyright Clearanc
26、e Center, 222Rosewood Drive, Danvers, MA 01923, Tel: (978) 646-2600; http:/ 1 Material RequirementsProperties ASTM Test Method RequirementsLow Temp Flex C765 No Cracks at 23C (10F)No Adhesion LossWeight Loss C771 2 % MaximumVehicle Migration C772 1 paper stained maximum and thisstain can be no more
27、than 3.2 mm(0.125 in.) from edge of samplemaximumBacking Removal C879,Alternative ANo transfer of tape compound to thepaper.C879,Alternative BNo transfer of tape compound to thepaperYield Strength C908 41.4 kPa (6 psi) minimumCompression/ Re-coveryC972 122 N/cm3(450 lbf/in.3) max.Compression IndexWater Absorption C1016 0.04 g/cm3Weight Gain maximumafter blottingFlow Test C1266 60 % max Loss of HeightC1281 142
