ASTM C1564 - 20

    Standard Guide for Use of Silicone Sealants for Protective Glazing Systems

    Active Standard ASTM C1564 | Developed by Subcommittee: C24.10

    Book of Standards Volume: 04.07


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    Significance and Use

    4.1 Guidelines are provided for the use of silicone sealants in protective glazing. Protective glazing incorporates various forms of glazing that are not covered in Guides C1401 and C1193. The requirements for a sealant in protective glazing are similar to the requirements for structural sealant glazing. However, for certain applications, such as missile impact and blast resistant glazing, sealant requirements may be greater. Modes of failure for blast resistant glazing can be different than the modes of failure for missile impact glazing. Of particular concern is the outbound glazing support loading from blast wave negative phase pressure or the dynamic rebound of the glazing, or both.

    4.2 Many types of protective glazing systems are relatively new and the test methods and standards for protective glazing are continually evolving. Because the demands on a sealant in protective glazing systems are changing, guidelines are necessarily general in many instances.

    4.3 As a component of a glazing system, the sealant can be a factor in whether a glazing system meets the requirements of a specific test method but other factors such as the frame and glazing type, may be of greater influence.

    4.4 The designer of a protective glazing system should consult with the various manufacturers of the component materials. The experience and judgment of the glazing system designer working with the sealant manufacturer and other component manufacturers, can ultimately determine whether a specific glazing system will successfully meet a specific test requirement.

    1. Scope

    1.1 This guide covers the use of silicone sealants in protective glazing systems for building construction. Protective glazing includes systems designed for use in applications subject to natural hazards, such as hurricanes, earthquakes, windstorms, impacts from wind-borne debris; and assaults such as burglary, air blasts, forced-entry attacks and ballistic attacks.

    1.2 While other glazing accessories and components are used in protective glazing, this document specifically describes the use of silicone sealants for protective glazing systems.

    1.3 This guide provides information useful to design professionals, architects, manufacturers, installers, and others for the design and use of silicone sealants for protective glazing systems.

    1.4 A silicone sealant is only one component of a glazing system. A glazing system that meets the testing and code requirement for protective glazing must successfully integrate the frame and its anchorage, glass, or other glazing materials, protective film or interlayer and silicone sealant into a high performance system. Compliance with code or other requirements can be determined through physical testing of the glazing system or through computer simulation.

    1.5 Glazing systems using silicone sealants that have successfully met the test requirements for missile impact and airblast test requirements incorporate the use of silicone sealants specifically formulated, tested, and marketed for this application. Sealants that are commonly used today comply with Specifications C920 and C1184.

    1.6 This guide does not discuss sealants intended to protect against radioactivity or provide biological containment.

    1.7 The committee with jurisdiction over this standard is not aware of any comparable standards published by other organizations.

    1.8 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.

    1.9 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.


    2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.

    ASTM Standards

    C717 Terminology of Building Seals and Sealants

    C719 Test Method for Adhesion and Cohesion of Elastomeric Joint Sealants Under Cyclic Movement (Hockman Cycle)

    C794 Test Method for Adhesion-in-Peel of Elastomeric Joint Sealants

    C920 Specification for Elastomeric Joint Sealants

    C1087 Test Method for Determining Compatibility of Liquid-Applied Sealants with Accessories Used in Structural Glazing Systems

    C1135 Test Method for Determining Tensile Adhesion Properties of Structural Sealants

    C1184 Specification for Structural Silicone Sealants

    C1193 Guide for Use of Joint Sealants

    C1394 Guide for In-Situ Structural Silicone Glazing Evaluation

    C1401 Guide for Structural Sealant Glazing

    C1472 Guide for Calculating Movement and Other Effects When Establishing Sealant Joint Width

    C1682 Guide for Characterization of Spent Nuclear Fuel in Support of Interim Storage, Transportation and Geologic Repository Disposal

    D624 Test Method for Tear Strength of Conventional Vulcanized Rubber and Thermoplastic Elastomers

    E631 Terminology of Building Constructions

    E1886 Test Method for Performance of Exterior Windows, Curtain Walls, Doors, and Impact Protective Systems Impacted by Missile(s) and Exposed to Cyclic Pressure Differentials

    E2395 Specification for Voluntary Security Performance of Window and Door Assemblies with Glazing Impact

    F1233 Test Method for Security Glazing Materials And Systems

    F1642 Test Method for Glazing and Glazing Systems Subject to Airblast Loadings

    F2912 Specification for Glazing and Glazing Systems Subject to Airblast Loadings

    F3038 Test Method for Timed Evaluation of Forced-Entry-Resistant Systems

    GSA Standard

    US General Services Administration (GSA) Standard Test Method for Glazing and Window Systems Subject to Dynamic Overpressure Loading U.S. General Services Administration (GSA), 1800 F Street, NW Washington, DC 20405


    ICS Code

    ICS Number Code 71.100.55 (Silicones)

    UNSPSC Code

    UNSPSC Code 31133710(Silicone sealant)


    Referencing This Standard
    Link Here
    Link to Active (This link will always route to the current Active version of the standard.)

    DOI: 10.1520/C1564-20

    Citation Format

    ASTM C1564-20, Standard Guide for Use of Silicone Sealants for Protective Glazing Systems, ASTM International, West Conshohocken, PA, 2020, www.astm.org

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