ASTM C1087-00(2006)e1
(Test Method)Standard Test Method for Determining Compatibility of Liquid-Applied Sealants with Accessories Used in Structural Glazing Systems
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
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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NOTICE: This standard has either been superseded and replaced by a new version or withdrawn.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
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Designation:C1087–00(Reapproved2006)
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.
´ NOTE—Reference to Section 6 in 9.2 was corrected editorially to Section 8 in January 2011.
1. Scope compatibility, gasket, glazing, sealant, setting blocks, shim,
spacer, structural sealant, and structural sealant glazing.
1.1 This test method covers a laboratory screening proce-
dure for determining the compatibility of liquid-applied struc-
4. Summary of Test Method
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
1.2 This test method includes the observation of three
Fig. 1).
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,
6. Apparatus and Materials
6.1 Glass Panels, clear float glass, approximately 76.2 by
ThistestmethodisunderthejurisdictionofASTMCommitteeC24onBuilding
Seals and Sealants and is the direct responsibility of Subcommittee C24.20 on 50.8 by 6.4 mm (3 by 2 by ⁄4 in.). Eight panels are required for
General Test Methods.
each material being tested.
Current edition approved May 1, 2006. Published August 2006. Originally
6.2 Bond Breaker Tape, 25.4 by 76.2-mm (1 by 3-in.) piece
approved in 1987. Last previous edition approved in 2000 as C1087 – 00. DOI:
for each panel.The bond breaker tape must be compatible with
10.1520/C1087-00R06E01.
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
the sealants being tested.
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
6.3 Thermometer,forexample,28.9to100°C(20to212°F).
Standards volume information, refer to the standard’s Document Summary page on
6.4 Ultraviolet (UV) lamps, UVA-340 lamps.
the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
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C1087–00 (2006)
specimens (see Fig. 3). The apparatus shall be capable of
maintaining a temperature at the test specimens of 48 6 2°C
(118 6 3.6°F). Infrared lamps or other sources of heat may be
used to maintain the required temperature.
6.6 Cleaning Solvent—Any solvent capable of cleaning the
glass is acceptable (for example, 50/50 mix of isopropyl
alcohol and distilled water).
6.7 Test Sealant, an appropriate amount of the sealant to be
used in the system.
6.8 Reference Sealant—Alight or translucent sealant of the
same composition as the test sealant. If none is available,
contact the sealant supplier for recommendations on a suitable
alternative.
FIG. 1 Orientation of Test Specimen Under Lamps
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
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
FIG. 2 View of Test Specimen
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 pre
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