ASTM_C_1281_-_16.pdf

Designation:C128116Standard 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 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 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 The 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 responsibility 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-formed 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 TapeSealantsC972 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 usedin 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 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 shelf-life of this sealant shall be determined by itsmanufacturer.When establishing the shelf-life,the manufac-turer should also identify acceptable conditions of storage forthe sealant.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 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 be 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.7.Sampling7.1 The preformed tape sealant to be tested for conformancewith the requirements of this specification shall be taken1This 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 June 1,2016.Published July 2016.Originally approvedin 1994.Last previous edition approved in 2014 as C1281 14.DOI:10.1520/C1281-16.2For 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 onthe ASTM website.Copyright ASTM International,100 Barr Harbor Drive,PO Box C700,West Conshohocken,PA 19428-2959.United States1 directly from a randomly selected commercial 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 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 Method 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 24