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ASTM C794-01

(Test Method)

Standard Test Method for Adhesion-in-Peel of Elastomeric Joint Sealants

Standard Test Method for Adhesion-in-Peel of Elastomeric Joint Sealants

SCOPE
1.1 This test method covers a laboratory procedure for determining the strength and characteristics of the peel properties of a cured-in-place elastomeric joint sealant, single- or multicomponent, for use in building construction.  
1.2 The values stated in metric (SI) units are to be regarded as the standard. The values given in parentheses are provided for information only.  
1.3  This standard does not purport to address all of the safety problems, 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.

General Information

Status
Historical
Publication Date
09-Jun-2001
ICS
91.100.50 - Binders. Sealing materials
Technical Committee
C24 - Building Seals and Sealants
Drafting Committee
C24.30 - Adhesion
Current Stage
Ref Project

Relations

Replaces
ASTM C794-93 - Standard Test Method for Adhesion-in-Peel of Elastomeric Joint Sealants
Effective Date
10-Jun-2001
Replaced By
ASTM C794-06 - Standard Test Method for Adhesion-in-Peel of Elastomeric Joint Sealants
Effective Date
15-Sep-2006
Referred By
ASTM C920-18 - Standard Specification for Elastomeric Joint Sealants
Effective Date
10-Jun-2001
Referred By
ASTM C1249-18(2023) - Standard Guide for Secondary Seal for Sealed Insulating Glass Units for Structural Sealant Glazing Applications
Effective Date
10-Jun-2001
Referred By
ASTM C1021-08(2023) - Standard Practice for Laboratories Engaged in Testing of Building Sealants
Effective Date
10-Jun-2001
Referred By
ASTM E2112-23 - Standard Practice for Installation of Exterior Windows, Doors and Skylights
Effective Date
10-Jun-2001
Referred By
ASTM E2813-18 - Standard Practice for Building Enclosure Commissioning
Effective Date
10-Jun-2001
Referred By
ASTM C1472-16(2022) - Standard Guide for Calculating Movement and Other Effects When Establishing Sealant Joint Width
Effective Date
10-Jun-2001
Referred By
ASTM E1399/E1399M-97(2022) - Standard Test Method for Cyclic Movement and Measuring the Minimum and Maximum Joint Widths of Architectural Joint Systems
Effective Date
10-Jun-2001
Referred By
ASTM C1521-19(2020) - Standard Practice for Evaluating Adhesion of Installed Weatherproofing Sealant Joints
Effective Date
10-Jun-2001
Referred By
ASTM E3223/E3223M-20 - Standard Guide for Specifying and Testing Field-Constructed Exterior Building Wall System Mockups in New Construction
Effective Date
10-Jun-2001
Referred By
ASTM C1193-16(2023) - Standard Guide for Use of Joint Sealants
Effective Date
10-Jun-2001
Referred By
ASTM C1564-20 - Standard Guide for Use of Silicone Sealants for Protective Glazing Systems
Effective Date
10-Jun-2001
Referred By
ASTM C1184-23 - Standard Specification for Structural Silicone Sealants
Effective Date
10-Jun-2001
Referred By
ASTM C1401-23 - Standard Guide for Structural Sealant Glazing
Effective Date
10-Jun-2001

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ASTM C794-01 - Standard Test Method for Adhesion-in-Peel of Elastomeric Joint SealantsASTM C794-01 - Standard Test Method for Adhesion-in-Peel of Elastomeric Joint Sealants
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ASTM C794-01 - Standard Test Method for Adhesion-in-Peel of Elastomeric Joint Sealants
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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:C794–01
Standard Test Method for
1
Adhesion-in-Peel of Elastomeric Joint Sealants
This standard is issued under the fixed designation C 794; 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.
This standard has been approved for use by agencies of the Department of Defense.
1. Scope 4. Summary of Test Method
1.1 This test method covers a laboratory procedure for 4.1 This test method consists of preparing test specimens by
determining the strength and characteristics of the peel prop- embedding a strip of cloth in a thin layer of the sealant being
erties of a cured-in-place elastomeric joint sealant, single- or tested, on several substrate materials, curing these specimens
multicomponent, for use in building construction. for a certain length of time under specified conditions, then
1.2 The values stated in metric (SI) units are to be regarded placing them in a tension-testing machine in such a way that
as the standard. The values given in parentheses are provided the embedded cloth is peeled back from the substrate at 180°,
for information only. and measuring the force exerted as well as the nature of the
1.3 Thecommitteewithjurisdictionoverthisstandardisnot separation of the sealant from the substrate.
aware of any comparable standards published by other orga-
5. Significance and Use
nizations.
1.4 This standard does not purport to address all of the 5.1 There are differences in opinion among those concerned
with sealant technology whether or not this adhesion-in-peel
safety problems, if any, associated with its use. It is the
responsibility of the user of this standard to establish appro- test is intended to simulate the conditions encountered by a
sealant in normal use. Nevertheless, since it represents a test to
priate safety and health practices and determine the applica-
bility of regulatory limitations prior to use. destruction,thevalueofthetestdenotestheabilityofthecured
sealant to maintain a bond to the substrate under severe
2. Referenced Documents
conditions.
2.1 ASTM Standards: 5.2 Many sealant manufacturers utilize the adhesion-in-peel
2
C33 Specification for Concrete Aggregates test for determining the adhesive characteristics of sealant/
C 109 Test Method for Compressive Strength of Hydraulic primer combinations with unusual or proprietary substrates.
3
Cement Mortars (Using 2-in. or 50-mm Cube Specimens)
3 6. Apparatus and Materials
C 150 Specification for Portland Cement
4
C 717 Terminology of Building Seals and Sealants 6.1 Testing Machine withtensiongripscapableofpullingat
the rate of separation of 51 mm (2 in.)/min, and having a chart
G23 Practice for Operating Light-Exposure Apparatus
(Carbon-Arc Type) With and Without Water for Exposure indicator calibrated in 0.45-kg (1-lb) units.
5
6.2 Standard Substrates:
of Nonmetallic Materials
6.2.1 Aluminum Alloy, Type 6063-T5 or 6061-T6, with a
3. Terminology
clear anodized finish of not less than 0.0075-mm (0.3-mil)
3.1 Definitions—See Terminology C 717 for applicable thickness over a scale-free finish; 2 pieces, 152 by 76 by 6.3
1
definitions of the following terms: cure, elastomeric, joint, mm (6 by 3 by ⁄4 in.).
primer, sealant, and substrate. 6.2.2 Mortar Slabs, prepare two cement mortar slabs, each
3
152 by 76 by 9.5 mm (6 by 3 by ⁄8 in.) in size, using one part
of high early strength Portland cement conforming to Type III
1
ThistestmethodisunderthejurisdictionofASTMCommitteeC24onBuilding
of Specification C 150 for Portland Cement, to two parts by
Seals and Sealants, and is the direct responsibility of Subcommittee C24.30 on
weight of clean, uniformly graded, concrete fine aggregate
Adhesion.
(sand) conforming to SpecificationC33, for Concrete Aggre-
Current edition approved June 10, 2001. Published July 2001. Originally
published as C 794 – 75. Last previous edition C 794 – 93.
gates. Use sufficient water to produce a flow of 100 6 5 when
2
Annual Book of ASTM Standards, Vol 04.02.
tested in accordance with the procedure for the determination
3
Annual Book of ASTM Standards, Vol 04.01.
4 of consistency of cement mortar described in Test Method
Annual Book of ASTM Standards, Vol 04.07.
5
Annual Book of ASTM Standards, Vol 14.02. C 109. After curing 1 day in moist air and 6 days in saturated
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.
1

---------------------- Page: 1 ----------------------
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.
C794–0
...

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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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1.1 This test method covers a laboratory procedure for determining the effects of accelerated weathering on cured-in-place elastomeric joint sealants (single- and multicomponent) for use in building construction.  
1.2 The values stated in SI units are to be regarded as the standard. The values in parentheses are for information only.  
1.3 The committee with jurisdiction over this standard is not aware of any comparable standards published by other ASTM committees or other organizations.  
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