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ASTM C834-05

(Specification)

Standard Specification for Latex Sealants

Standard Specification for Latex Sealants

ABSTRACT
This specification covers latex sealants used for sealing joints in building construction. The following are the type and grade of sealant under this specification: Type OP, Type C, Grade 18°C, Grade 0°C, and Grade NF. The sealant shall be composed of latex formulated with appropriate fillers, pigments, and chemical additives. The physical properties of the sealant shall conform to the specified requirements according to type and grade. The following tests shall be done: extrudability after aging, artificial weathering, volume shrinkage, low-temperature flexibility, extension-recovery and adhesion, slump, staining, and tack-free time.
SCOPE
1.1 This specification covers one component latex sealants used for sealing joints in building construction.
1.2 A sealant meeting the requirements of this specification shall be classified by the manufacturer to be one of the types and grades defined in Section 4.
1.3 The values stated in SI units are to be regarded as the standard. The inch-pound in parenthesis are provided for information purposes only.
1.4 The following precautionary caveat pertains only to the test method portion, Section 10, of this Specification: 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—Currently, there is no ISO standard similar to this specification.

General Information

Status
Historical
Publication Date
30-Apr-2005
ICS
91.100.50 - Binders. Sealing materials
Technical Committee
C24 - Building Seals and Sealants
Drafting Committee
C24.10 - Specifications, Guides and Practices
Current Stage
Ref Project

Relations

Replaces
ASTM C834-00e1 - Standard Specification for Latex Sealants
Effective Date
01-May-2005
Replaced By
ASTM C834-10 - Standard Specification for Latex Sealants
Effective Date
01-Jan-2010
Referred By
ASTM C1021-08(2023) - Standard Practice for Laboratories Engaged in Testing of Building Sealants
Effective Date
01-May-2005
Referred By
ASTM C1193-16(2023) - Standard Guide for Use of Joint Sealants
Effective Date
01-May-2005
Referred By
ASTM C1481-12(2017) - Standard Guide for Use of Joint Sealants with Exterior Insulation and Finish Systems (EIFS)
Effective Date
01-May-2005
Referred By
ASTM E2112-23 - Standard Practice for Installation of Exterior Windows, Doors and Skylights
Effective Date
01-May-2005
Referred By
ASTM C919-22 - Standard Practice for Use of Sealants in Acoustical Applications
Effective Date
01-May-2005

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ASTM C834-05 - Standard Specification for Latex SealantsASTM C834-05 - Standard Specification for Latex Sealants
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ASTM C834-05 - Standard Specification for Latex Sealants
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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.
Designation: C834 – 05
Standard Specification for
1
Latex Sealants
This standard is issued under the fixed designation C834; 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.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope C1183 Test Method for Extrusion Rate of Elastomeric
Sealants
1.1 This specification covers one component latex sealants
C1193 Guide for Use of Joint Sealants
used for sealing joints in building construction.
C1241 Test Method for Volume Shrinkage of Latex Seal-
1.2 A sealant meeting the requirements of this specification
ants During Cure
shall be classified by the manufacturer to be one of the types
D2202 Test Method for Slump of Sealants
and grades defined in Section 4.
D2203 Test Method for Staining from Sealants
1.3 The values stated in SI units are to be regarded as the
D2377 Test Method for Tack-Free Time of Caulking Com-
standard. The inch-pound in parenthesis are provided for
pounds and Sealants
information purposes only.
1.4 The following precautionary caveat pertains only to the
3. Terminology
test method portion, Section 10, of this Specification: This
3.1 Definitions—Definitions of the following terms apply to
standard does not purport to address all of the safety concerns,
thisspecificationandarefoundinTerminologyC717:adhesive
if any, associated with its use. It is the responsibility of the user
failure (adhesion loss), cure, joint, latex sealant, sealant,
of this standard to establish appropriate safety and health
shrinkage (volume), and substrate.
practices and determine the applicability of regulatory limita-
tions prior to use.
4. Classification of Sealants
NOTE 1—Currently, there is no ISO standard similar to this specifica-
4.1 A sealant qualifying under this specification shall be
tion.
classified by type and grade as follows:
4.1.1 Type OP—An opaque sealant containing color pig-
2. Referenced Documents
ments or extender pigments, or both, that has no more than
2
2.1 ASTM Standards:
30 % volume shrinkage (see 10.1.3).
C717 Terminology of Building Seals and Sealants
4.1.2 Type C—A clear or translucent sealant that has no
C732 Test Method for Aging Effects of Artificial Weather-
more than 50 % volume shrinkage (see 10.1.3).
ing on Latex Sealants
4.1.3 Grade –18°C—A sealant that meets the requirements
C734 Test Method for Low-Temperature Flexibility of La-
for low temperature flexibility (see 7.1) when tested at –18°C
tex Sealants After Artificial Weathering
(0°F).
C736 TestMethodforExtension-RecoveryandAdhesionof
4.1.4 Grade 0°C—Asealant that meets the requirements for
Latex Sealants
low temperature flexibility (see 7.1) when tested at 0°C (32°F).
4.1.5 Grade NF—A sealant that does not meet the require-
ments for low temperature flexibility of Grade 0°C (see 4.1.4).
1
This specification is under the jurisdiction of ASTM Committee C24 on
Building Seals and Sealants and is the direct responsibility of Subcommittee C24.10 5. Materials and Manufacture
on Specifications, Guides and Practices.
5.1 The sealant shall be composed of latex formulated with
Current edition approved May 1, 2005. Published June 2005. Originally
´1
appropriatefillers,pigments,andchemicaladditivestoresultin
approved in 1976. Last previous edition approved in 2000 as C834 – 00 . DOI:
10.1520/C0834-05.
conformance to this specification.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
5.2 All material and workmanship shall be in accordance
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
with good commercial practice. The producer is permitted a
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. wide latitude in choice of raw materials for making these
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1

---------------------- Page: 1 ----------------------
C834 – 05
products. Consequently, there is no implication that the com- tion. It should be recognized by the user that not all sealants
pounds are equivalent in all physical properties. meeting this specification are suitable for all applications and
5.3 The manufacturing process shall be such as will ensure all substrates. It is essential, therefore, that the type and grade
a homogeneous mix, free of defects that would affect service- be specified for proper description of a sealant. Test methods
ability, and provide a consistency suitable for immediate relate to special standard substrates of glass, wood and alumi-
application. num. If tests are required using
...

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5.1 It is known that solar radiation contributes to the degradation of sealants in exterior building joints. The use of a laboratory accelerated weathering machine with actinic radiation, moisture and heat appears to be a feasible means to give indications of early degradation by the appearance of sealant cracking. However, simulated weather factors in combination with extension may produce more severe degradation than weather factors only. Therefore, the effect of the weathering test is made more sensitive by the addition of the bending of the specimen at cold temperature.
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1.2 The values stated in SI units are to be regarded as the standard. The values in parentheses are for information only.  
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