1、Designation: C 1281 03Standard Specification forPreformed Tape Sealants for Glazing Applications1This standard is issued under the fixed designation C 1281; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the year of last revision.
2、 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 preformed tape sealants foruse in glazing applications. These materials are generally usedto serve as
3、components 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 Th
4、e subcommittee 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 responsibil
5、ity 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:C 717 Terminology of Building Seals and Sealants2C 765 Test Method for Low-Temperature Flexibility ofPre
6、formed Tape Sealants2C 771 Test Method for Weight Loss After Heat Aging ofPreformed Sealing Tapes2C 772 Test Method for Oil Migration or Plasticizer Bleed-Out of Preformed Tape Sealants2C 879 Test Method for Release Papers Used with PreformedTape Sealants2C 908 Test Method for Yield Strength of Pref
7、ormed TapeSealants2C 972 Test Method for Compression-Recovery of Pre-formed Tape Sealants2C 1016 Test Method for Determination of Water Absorptionof Sealant Backing (Joint Filler) Material2C 1266 Test Method for Flow Characteristics of PreformedTape Sealants23. Terminology3.1 DefinitionsThe definiti
8、ons of the following terms usedin this specification are found in Terminology C 717: compres-sion seal, glazing, 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 tap
9、e sealant 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 sui
10、tablefor 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 pre
11、formed tape 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 b
12、e recognized 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
13、 C24 onBuilding Seals and Sealants and is the direct responsibility of Subcommittee C24.10on Specifications, Guides and Practices.Current edition approved May 10, 2003. Published June 2003. Originallyapproved in 1994. Last previous edition approved in 1999 as C 1281 99.2Annual Book of ASTM Standards
14、, Vol 04.07.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.7. Sampling7.1 The preformed tape sealant to be tested for conformancewith the requirements of this specification shall be takendirectly from a randomly selected commercial
15、container assupplied by the manufacturer.8. Test Methods8.1 All test methods described in the following paragraphs,unless otherwise indicated, shall be performed in a laboratorycontrolled at 23 6 2C (73.4 6 3.6F). This preformed tapesealant sample shall be conditioned at this temperature for atleast
16、 24 h before laboratory tests are preformed.8.2 Low Temperature FlexibilityTest Method C 765.8.3 Weight LossTest Method C 771.8.4 Vehicle MigrationTest Method C 772.8.5 Backing RemovalTest Method C 879.8.6 Yield StrengthTest Method C 908.8.7 Compression/RecoveryTest Method C 972.8.8 Water Absorption
17、Test Method C 1016, Procedure A,with Section 10.1.5 modified as follows: after immersion for 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
18、 specimen on the weighing platformand record the mass of the specimen to the nearest 0.1 g (0.004oz.).8.9 Flow TestTest Method C 1266.9. Packaging and Package Marking9.1 Unless otherwise specified in the contract or order, thematerial shall be packaged in standard commercial containersconstructed to
19、 ensure acceptance by common or other carrierfor safe transportation to the point of delivery.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 manufacture
20、r, the lot and batch number of thecontract or order, and the date of manufacture shall also beshown.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
21、 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 responsible technical commi
22、ttee 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 consideration at a me
23、eting 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,
24、 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)
25、.TABLE 1 Material RequirementsProperties ASTM Test Method RequirementsLow Temp Flex C 765 No Cracks at 23C (10F)No Adhesion LossWeight Loss C 771 2 % MaximumVehicle Migration C 772 1 paper stained maximum and thisstain can be no more than 3.2 mm(0.125 in.) from edge of samplemaximumBacking Removal C
26、 879,Alternative ANo transfer of tape compound to thepaper.C 879,Alternative BNo transfer of tape compound to thepaperYield Strength C 908 41.4 kPa (6 psi) minimumCompression/RecoveryC 972 122 N/cm3(450 lbf/in.3) max.Compression IndexWater Absorption C 1016 0.04 g/cm3Weight Gain maximumafter blottingFlow Test C 1266 60 % max Loss of HeightC1281032
