1. Scope

1.1 This specification covers the properties of cold, liquid-applied, single or multi-component, chemically curing, elastomeric sealants used as the secondary seal of sealed insulating glass units, hereinafter referred to as the 'sealant' (see Fig. 1). These sealants are intended to be a structural component of sealed insulating glass units used in structural sealant glazing (hereinafter referred to as SSG). Hereinafter, the term 'insulating glass' will be referred to as IG. Presently only certain silicone sealants are recognized as having the necessary durability for use as secondary sealant in IG units in structural glazing applications.

1.2 This specification does not describe all of the necessary properties of the sealant. Only those properties for which there are ASTM test methods and industry-agreed-upon minimum acceptable test requirements are described by this specification. Additional properties will be added as ASTM test methods for these properties become available.

1.3 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information purposes only.

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

C603 Test Method for Extrusion Rate and Application Life of Elastomeric Sealants

C639 Test Method for Rheological (Flow) Properties of Elastomeric Sealants

C661 Test Method for Indentation Hardness of Elastomeric-Type Sealants by Means of a Durometer

C679 Test Method for Tack-Free Time of Elastomeric Sealants

C717 Terminology of Building Seals and Sealants

C792 Test Method for Effects of Heat Aging on Weight Loss, Cracking, and Chalking of Elastomeric Sealants

C1135 Test Method for Determining Tensile Adhesion Properties of Structural Sealants

C1184 Specification for Structural Silicone Sealants

C1249 Guide for Secondary Seal for Sealed Insulating Glass Units for Structural Sealant Glazing Applications

C1265 Test Method for Determining the Tensile Properties of an Insulating Glass Edge Seal for Structural Glazing Applications

Keywords

edge sealant; insulating glass; secondary sealant; structural glazing;

ICS Code

ICS Number Code 81.040.20 (Glass in building); 91.100.50 (Binders. Sealing materials)

DOI: 10.1520/C1369-97

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