ASTM C1184-00a

Standard Specification for Structural Silicone Sealants

SCOPE
1.1 This specification describes the properties of cold liquid applied, single-component or multicomponent, chemically curing elastomeric structural silicone sealants herein referred to as the sealant. These sealants are intended to structurally adhere components of structural sealant glazing systems.
1.2 Only those properties for which there are industry-agreed-upon minimum acceptable requirements, as determined by available ASTM test methods, are described in this specification. Additional properties are presently being defined and will be added as ASTM test methods for those properties become available.
1.3 The values stated in metric (SI) units are to be regarded as the standard. The values in parentheses are for information only.
1.4 Committee C24, with jurisdiction over this specification, is aware of only one comparable standard, ETAG No. 002.

General Information

• Status: Historical
• Publication Date: 09-Dec-2000
• Technical Committee: C24 - Building Seals and Sealants

Relations

• Replaced By: ASTM C1184-00ae1 - Standard Specification for Structural Silicone Sealants
• Effective Date: 10-Dec-2000
• Referred By: ASTM C1249-18(2023) - Standard Guide for Secondary Seal for Sealed Insulating Glass Units for Structural Sealant Glazing Applications
• Effective Date: 10-Dec-2000
• Referred By: ASTM C1021-08(2023) - Standard Practice for Laboratories Engaged in Testing of Building Sealants
• Effective Date: 10-Dec-2000
• Referred By: ASTM C1369-19 - Standard Specification for Secondary Edge Sealants for Structurally Glazed Insulating Glass Units
• Effective Date: 10-Dec-2000
• Referred By: ASTM C1564-20 - Standard Guide for Use of Silicone Sealants for Protective Glazing Systems
• Effective Date: 10-Dec-2000
• Referred By: ASTM C1193-16(2023) - Standard Guide for Use of Joint Sealants
• Effective Date: 10-Dec-2000
• Referred By: ASTM C1401-23 - Standard Guide for Structural Sealant Glazing
• Effective Date: 10-Dec-2000

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or discontinued.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 1184 – 00a
Standard Specification for
Structural Silicone Sealants
This standard is issued under the fixed designation C 1184; 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 1193 Guide for Use of Joint Sealants
C 1401 Guide for Structural Sealant Glazing
1.1 This specification describes the properties of cold liquid
G 53 Practice for Operating Light- and Water-Exposure
applied, single-component or multicomponent, chemically cur-
Appartus (Fluorescent UV-Condensation Type) for Expo-
ing elastomeric structural silicone sealants herein referred to as
sure of Nonmetallic Materials
the sealant. These sealants are intended to structurally adhere
G 151 Practice for Exposing Nonmetallic Materials in Ac-
components of structural sealant glazing systems.
celerated Test Devices That Use Laboratory Light
1.2 Only those properties for which there are industry-
Sources
agreed-upon minimum acceptable requirements, as determined
G 154 Practice for Operating Fluorescent Light Apparatus
by available ASTM test methods, are described in this speci-
for UV Exposure of Nonmetallic Materials
fication. Additional properties are presently being defined and
G 155 Practice for Operating Xenon Arc Light Apparatus
will be added as ASTM test methods for those properties
for Exposure of Nonmetallic Materials
become available.
2.2 European Organization for Technical Approvals Docu-
1.3 The values stated in metric (SI) units are to be regarded
ment:
as the standard. The values in parentheses are for information
ETAG No. 002 Guideline for European Technical Approval
only.
for Structural Sealant Glazing Systems
1.4 Committee C-24, with jurisdiction over this specifica-
tion, is aware of only one comparable standard, ETAG No.
3. Terminology
002.
3.1 Definitions—Refer to Terminology C 717 for definitions
2. Referenced Documents of the following terms used in this specification: adhesive
failure, chemically curing sealant, cohesive failure, compatibil-
2.1 ASTM Standards:
ity, cure, elastomeric, glazing, hardness, non-sag sealant,
C 603 Test Method for Extrusion Rate and Application Life
primer, sealant, shelf life, silicone sealant, structural sealant,
of Elastomeric Sealants
substrate, and tooling.
C 639 Test Method for Rheological (Flow) Properties of
Elastomeric Sealants
4. Significance and Use
C 661 Test Method for Indentation Hardness of
2 4.1 Not all sealants meeting this specification should be
Elastomeric-Type Sealants by Means of a Durometer
presumed to be suitable for all applications and all substrates.
C 679 Test Method for Tack-Free Time of Elastomeric
2 This specification assists in selecting sealants that meet certain
Sealants
2 minimum standards of performance.
C 717 Terminology of Building Seals and Sealants
4.2 Although this specification qualifies a sealant for use, it
C 792 Test Method for Effects of Heat Aging on Weight
2 does not address the adhesion capability of the sealant for a
Loss, Cracking, and Chalking of Elastomeric Sealants
specific substrate nor the compatibility of the sealant with the
C 794 Test Method for Adhesion-in-Peel of Elastomeric
2 materials it contacts. Adhesion and compatibility characteris-
Joint Sealants
tics required for specific substrates or finishes can be deter-
C 1087 Test Method for Determining Compatibility of
mined by Test Method C 794 for adhesion and Test Method
Liquid-Applied Sealants with Accessories Used in Struc-
2 C 1087 for compatibility.
tural Glazing Systems
4.3 To properly specify a sealant for the intended use when
C 1135 Test Method for Determining Tensile Adhesion
2 using this specification, it is essential that the applicable type
Properties of Structural Sealants
and use be included.
5. Classification of Sealants
This specification is under the jurisdiction of ASTM Committee C24 on
Building Seals and Sealants and is the direct responsibility of Subcommittee C24.35
5.1 A sealant qualifying under this specification shall be
on Structural Sealants.
classified as to type and use as given in 4.1.1-4.1.4.
Current edition approved Dec. 10, 2000. Published January 2001. Originally
published as C 1184 – 91. Last previous edition C 1184 – 00.
2 3
Annual Book of ASTM Standards, Vol 04.07. Annual Book of ASTM Standards, Vol 14.04.
Copyright © ASTM, 100 Barr Harbor Drive, West Conshohocken, PA 19428-2959, United States.
C 1184
5.1.1 Type S—Single-component sealant. procedures for Type II and IV sealants.
5.1.2 Type M—Multicomponent sealant.
8.2 Extrudability—Test Method C 603.
5.1.3 Use G—A sealant that meets the requirements of this
8.3 Hardness—Test Method C 661, using a Type A-2
specification when tested on a clear, uncoated float glass
durometer.
substrate.
8.4 Heat Aging—Test Method C 792, using a temperature of
5.1.4 Use O—A sealant that meets the requirements of this
88 6 5°C (190 6 10°F).
specification when tested on a substrate other than a clear,
8.5 Tack-Free Time—Test Method C 679.
uncoated float glass substrate (for example, Use O—Granite).
8.6 Tensile Adhesion—Test Method C 1135, using a rate of
pull of 12.7 mm ( ⁄2 in.)/min. Determine the average ultimate
6. Materials and Manufacture
tensile value for each group of five specimens prepared as
6.1 Furnish single-component sealants as a homogeneous
described in 8.6.1 and 8.6.2.
mixture of a consistency suitable for application and within the
8.6.1 Prepare, in accordance with Test Method C 1135, a
manufacturer’s stated shelf life. Apply the sealant in accor-
total of 25 specimens for testing, except that the distance
dance with the written recommendations of the sealant manu-
between substrates will be 9.5 mm ( ⁄8in.).
facturer. The cured sealant shall be an elastomeric solid.
8.6.2 Cure all specimens for 21 days at standard conditions.
6.2 Furnish multicomponent sealants in two or more com-
Condition and test the specimens as described in 8.6.2.1-
ponents. Mix and apply the sealant in accordance with the
8.6.2.5.
written recommendations of the sealant manufacturer. The
8.6.2.1 Test five specimens at standard conditions after the
cured sealant shall be an elastomeric solid.
initial curing period.
6.3 Furnish primer of the type required by, and apply in
8.6.2.2 Condition five specimens for1hat88 6 5°C (190
accordance with, the written recommendations of the sealant
6 10°F) in a forced air oven. Test the specimens at 88 6 5°C
manufacturer.
(190 6 10°F).
7. Requirements
8.6.2.3 Condition five specimens for 1 h at −29 6 2°C (−20
7.1 The physical, mechanical, and performance properties
6 4°F). Test the specimens at −296 2°C (−20 6 4°F).
of the sealant shall conform to the requirements described in
8.6.2.4 Immerse five specimens in deionized or distilled
Table 1.
water at standard temperature for seven days. Test the speci-
7.2 When a primer (see Note 1) is required by the sealant
mens at standard conditions within 10 min after their removal
manufacturer, all tests performed in accordance with this
from the water.
specification shall be performed wit the primer. When a primer
8.6.2.5 Expose five specimens for 5000 h with the bond
is not required by the sealant manufacturer, all tests performed
surface facing the light source and using either of the exposure
in accordance with this specification shall be performed
conditions specified below:
without a primer.
(a)Fluorescent UV/Condensation Apparatus—Expose speci-
mens to fluorescent UVA-340 radiation in accordance with
NOTE 1—The proper use of primers is described in Guide C 1401.
Practices G 151 and G 154 using an exposure cycle consisting
7.3 The standard substrate for thi
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