ASTM C1087-00(2011)

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

SIGNIFICANCE AND USE
In structural sealant glazing systems, the sealant functions as the structural adhesive and may also function as the primary weather seal. As the structural adhesive, the integrity of the adhesive bond is critical.
Changes in color and adhesion after exposure are two of the criteria that can be used to determine the compatibility of the system. Experience has shown that accessories that cause loss of adhesion or discoloration in this test method may also cause these occurrences in actual use.
SCOPE
1.1 This test method covers a laboratory screening procedure for determining the compatibility of liquid-applied structural sealant glazing sealants when in contact with accessories such as dry glazing gaskets, spacers, shims, and setting blocks after exposure to heat and ultraviolet light.
1.2 This test method includes the observation of three parameters as follows:
1.2.1 Changes in the color of the sealant,
1.2.2 Changes in the adhesion of the sealant to glass, and
1.2.3 Changes in the adhesion of the sealant to the accessory being tested.
1.3 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only.
1.4 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 and health practices and determine the applicability of regulatory limitations prior to use.
Note 1—At this time, no comparable ISO standard exists.

General Information

• Status: Historical
• Publication Date: 31-May-2011
• ICS: 91.100.50 - Binders. Sealing materials
• Technical Committee: C24 - Building Seals and Sealants
• Drafting Committee: C24.20 - General Test Methods

Relations

• Replaces: ASTM C1087-00(2006)e1 - Standard Test Method for Determining Compatibility of Liquid-Applied Sealants with Accessories Used in Structural Glazing Systems
• Effective Date: 01-Jun-2011
• Referred By: ASTM C1184-23 - Standard Specification for Structural Silicone Sealants
• Effective Date: 01-Jun-2011
• Referred By: ASTM C1330-23 - Standard Specification for Cylindrical Sealant Backing for Use with Cold Liquid-Applied Sealants
• Effective Date: 01-Jun-2011
• Referred By: ASTM E2813-18 - Standard Practice for Building Enclosure Commissioning
• Effective Date: 01-Jun-2011
• Referred By: ASTM C1401-23 - Standard Guide for Structural Sealant Glazing
• Effective Date: 01-Jun-2011
• Referred By: ASTM C1021-08(2023) - Standard Practice for Laboratories Engaged in Testing of Building Sealants
• Effective Date: 01-Jun-2011
• Referred By: ASTM C1115-17(2022) - Standard Specification for Dense Elastomeric Silicone Rubber Gaskets and Accessories
• Effective Date: 01-Jun-2011
• Referred By: ASTM C1193-16(2023) - Standard Guide for Use of Joint Sealants
• Effective Date: 01-Jun-2011
• Referred By: ASTM C1249-18(2023) - Standard Guide for Secondary Seal for Sealed Insulating Glass Units for Structural Sealant Glazing Applications
• Effective Date: 01-Jun-2011
• Referred By: ASTM C1564-20 - Standard Guide for Use of Silicone Sealants for Protective Glazing Systems
• Effective Date: 01-Jun-2011
• Referred By: ASTM E2203-14(2018) - Standard Specification for Dense Thermoplastic Elastomers Used for Compression Seals, Gaskets, Setting Blocks, Spacers and Accessories
• Effective Date: 01-Jun-2011

Standards Content (Sample)

NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.
Contact ASTM International (www.astm.org) for the latest information
Designation: C1087 − 00(Reapproved 2011)
Standard Test Method for
Determining Compatibility of Liquid-Applied Sealants with
Accessories Used in Structural Glazing Systems
This standard is issued under the fixed designation C1087; 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 (´) indicates an editorial change since the last revision or reapproval.
1. Scope spacer, structural sealant, and structural sealant glazing.
1.1 This test method covers a laboratory screening proce-
4. Summary of Test Method
dure for determining the compatibility of liquid-applied struc-
tural sealant glazing sealants when in contact with accessories
4.1 The test specimens are placed beneath ultraviolet lamps
such as dry glazing gaskets, spacers, shims, and setting blocks
so that the radiation will hit the sealant directly on one
after exposure to heat and ultraviolet light.
specimen, and through the glass, on the other specimen (see
Fig. 1).
1.2 This test method includes the observation of three
parameters as follows:
4.2 The control specimens for this test method are prepared
1.2.1 Changes in the color of the sealant,
and tested identically to the test specimens except that the
1.2.2 Changes in the adhesion of the sealant to glass, and
accessory is eliminated.
1.2.3 Changesintheadhesionofthesealanttotheaccessory
4.3 After the specimens are exposed, the test specimens are
being tested.
compared to the control specimens.
1.3 The values stated in SI units are to be regarded as the
4.4 In the testing of the specimens, any color change in the
standard. The values given in parentheses are for information
sealant between the test specimen and the control is noted as
only.
areanychangesintheadhesionofthesealanttoeithertheglass
1.4 This standard does not purport to address all of the
ortotheaccessory.Thistestmethodrequiresthepreparationof
safety concerns, if any, associated with its use. It is the
eight test specimens (four controls and four test specimens for
responsibility of the user of this standard to establish appro-
each accessory being evaluated).
priate safety and health practices and determine the applica-
bility of regulatory limitations prior to use.
5. Significance and Use
NOTE 1—At this time, no comparable ISO standard exists.
5.1 In structural sealant glazing systems, the sealant func-
tions as the structural adhesive and may also function as the
2. Referenced Documents
primary weather seal. As the structural adhesive, the integrity
2.1 ASTM Standards:
of the adhesive bond is critical.
C717 Terminology of Building Seals and Sealants
5.2 Changes in color and adhesion after exposure are two of
the criteria that can be used to determine the compatibility of
3. Terminology
the system. Experience has shown that accessories that cause
3.1 Definitions—Definitions of the following terms used in
loss of adhesion or discoloration in this test method may also
this test method are listed in Terminology C717: adhesive
cause these occurrences in actual use.
failure (adhesion loss), bead, bond breaker, cohesive failure,
compatibility, gasket, glazing, sealant, setting blocks, shim,
6. Apparatus and Materials
6.1 Glass Panels, clear float glass, approximately 76.2 by
50.8 by 6.4 mm (3 by 2 by ⁄4 in.). Eight panels are required for
ThistestmethodisunderthejurisdictionofASTMCommitteeC24onBuilding
Seals and Sealants and is the direct responsibility of Subcommittee C24.20 on
each material being tested.
General Test Methods.
6.2 Bond Breaker Tape, 25.4 by 76.2-mm (1 by 3-in.) piece
Current edition approved June 1, 2011. Published August 2011. Originally
ε1
approved in 1987. Last previous edition approved in 2006 as C1087 – 00 (2006) .
for each panel.The bond breaker tape must be compatible with
DOI: 10.1520/C1087-00R11.
the sealants being tested.
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
contact ASTM Customer Service at [e-mail]. For Annual Book of ASTM
6.3 Thermometer, for example, 28.9 to 100°C (20 to 212°F).
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. 6.4 Ultraviolet (UV) lamps, UVA-340 lamps.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
C1087 − 00 (2011)
FIG. 4 UV Lamp Rotation
6.8 Reference Sealant—A light or translucent sealant of the
same composition as the test sealant. If none is available,
contact the sealant supplier for recommendations on a suitable
FIG. 1 Orientation of Test Specimen Under Lamps alternative.
7. Preparation of Test Specimens
7.1 Standard conditions of temperature and relative humid-
ity used during the preparation are defined as 23 6 2°C (73.46
3.6°F) and 50 6 10 % relative humidity.
7.2 Priortouse,cleantheglassthoroughlywiththecleaning
solvent and dry with a clean rag before the solvent is allowed
to evaporate.
7.3 Place a piece of compatible bond breaker tape to cover
1 in. of the top surface of the glass at one end (see Fig. 2).
7.4 Prepare a total of eight samples (four controls without
accessoryandfourtestspecimenswithaccessory). Cutapiece
of accessory material approximately 6.4 by 51 by 6.4 mm ( ⁄4
FIG. 2 View of Test Specimen
by2by ⁄4 in.) and place it on the center of the piece of glass
as shown in Fig. 2. Both the reference sealant and the test
sealant are tested in contact with the accessory.
7.5 Apply a bead of the test sealant on one side of the
accessory and a bead of translucent or light color reference
sealantalongtheothersideoftheaccessory.Toolthesealantso
that good contact with the glass occurs and the sealant is on top
of the accessory. The thickness of the sealant on top of the
accessory shall be approximately 3.2 mm ( ⁄8 in.).
7.6 The control specimens for this test are prepared and
tested identically to the test specimens except that the acces-
sory is eliminated.
8. Conditioning
FIG. 3 UV Exposure Apparatus
8.1 Condition all the specimens for one week at standard
conditions. After conditioning for seven days at standard
conditions, place two test specimens (with accessory) and two
6.5 UV Exposure Apparatus—A suitable UV exposure ap-
control specimens (without accessory) with glass side down,
paratus will consist of four UVA-340 lamps in a symmetrical
and place two
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