ASTM C1369-97

NOTICE: This standard has either been superseded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
Designation: C 1369 – 97
Standard Specification for
Secondary Edge Sealants for Structurally Glazed Insulating
Glass Units
This standard is issued under the fixed designation C 1369; the number immediately following the designation indicates the year of
original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A
superscript epsilon (e) indicates an editorial change since the last revision or reapproval.
1. Scope C 1265 Test Method for Determining the Tensile Properties
of an Insulating Glass Edge Seal for Structural Glazing
1.1 This specification covers the properties of cold, liquid-
Applications
applied, single or multi-component, chemically curing, elasto-
meric sealants used as the secondary seal of sealed insulating
3. Terminology
glass units, hereinafter referred to as the “sealant” (see Fig. 1).
3.1 Definitions—Refer to Terminology C 717 for definitions
These sealants are intended to be a structural component of
of the following terms used in this specification: chemically
sealed insulating glass units used in structural sealant glazing
curing sealant, compatibility, elastomeric, hardness, non-sag
(hereinafter referred to as SSG). Hereinafter, the term “insu-
sealant, sealant, shelf life, silicone sealant, and substrate.
lating glass” will be referred to as IG. Presently only certain
silicone sealants are recognized as having the necessary
4. Classification of Sealants
durability for use as secondary sealant in IG units in structural
4.1 A sealant qualifying under this specification shall be
glazing applications.
classified as to type and use as follows:
1.2 This specification does not describe all of the necessary
4.1.1 Type S—A single-component sealant.
properties of the sealant. Only those properties for which there
4.1.2 Type M—A multi-component sealant.
are ASTM test methods and industry-agreed-upon minimum
4.1.3 Use G—A sealant that meets the requirements of this
acceptable test requirements are described by this specification.
specification when tested on clear, uncoated float glass sub-
Additional properties will be added as ASTM test methods for
strates.
these properties become available.
4.1.4 Use O—A sealant that meets the requirements of this
1.3 The values stated in SI units are to be regarded as the
specification when tested on coatings such as reflective and
standard. The values given in parentheses are for information
low-emissivity metallic materials applied to glass substrates.
purposes only.
5. Materials and Manufacture
2. Referenced Documents
5.1 Sealant:
2.1 ASTM Standards:
5.1.1 Furnish single-component sealants as a homogeneous
C 603 Test Method for Extrusion Rate and Application Life
2 mixture of a consistency suitable for application. Apply the
of Elastomeric Sealants
sealant in strict accordance with the written recommendations
C 639 Test Method for Rheological (Flow) Properties of
of the sealant manufacturer. The cured sealant shall be an
Elastomeric Sealants
elastomeric solid.
C 661 Test Method for Indentation Hardness of
5.1.2 Multi-component sealants shall be mixed in the cor-
Elastomeric-Type Sealants by Means of a Durometer
rect ratio of components and delivered by appropriate equip-
C 679 Test Method for Tack-Free Time of Elastomeric
ment as specified by the sealant manufacturer.
Sealants
C 717 Terminology of Building Seals and Sealants
6. Requirements
C 792 Test Method for Effects of Heat Aging on Weight
6.1 The physical, mechanical, and performance properties
Loss, Cracking, and Chalking of Elastomeric Sealants
of the sealant shall conform to the requirements described in
C 1135 Test Method for Determining Tensile Adhesion
Table 1.
Properties of Structural Sealants
C 1184 Specification for Structural Silicone Sealants
Reflective and low-emissivity metallic materials are typical coatings applied to
This specification is under the jurisdiction of ASTM Committee C-24 on the glass substrate. If the coatings are edge deleted for actual production, they
Building Seals and Sealants and is the direct responsibility of Subcommittee C24.35 should be edge deleted for use in this specification.
on Structural Sealants. If the mix ratio of multi-component sealant is not within the sealant manufac-
Current edition approved April 10, 1997. Published June 1997. turers recommendations, the cure rate, tack free time, cohesive strength, and
Annual Book of ASTM Standards, Vol 04.07. adhesive strength of the sealant can be adversely affected.
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NOTICE: This standard has either been superseded and replaced by a new version or discontinued.
Contact ASTM International (www.astm.org) for the latest information.
C 1369
FIG. 1 Cutaway Section of IG Unit Edge Seal
TABLE 1 Requirements for Physical, Mechanical, and Performance Qualities of the Sealant
Property Requirements Test Method
Extrudability 10 s, max C 603
Rheological, max C 639
Vertical 4.8 mm ( ⁄16 in.)
Horizontal none
Hardness, Shore A 20 to 60 C 661
Heat Aging C 792
Weight Loss, max
...