ASTM D6694/D6694M-15
(Specification)Standard Specification for Liquid-Applied Silicone Coating Used in Spray Polyurethane Foam Roofing Systems
Standard Specification for Liquid-Applied Silicone Coating Used in Spray Polyurethane Foam Roofing Systems
ABSTRACT
This specification covers a liquid-applied solvent dispersed elastomeric coating used as a roofing membrane for spray polyurethane foam (SPF) insulation whose principal polymer in the dispersion contains more than 95 % silicone. The product, as manufactured, shall be in liquid form for application to SPF surfaces by brushing, squeegeeing, rolling, or spraying. The product shall be composed of dispersion containing as the principal polymer more than 95 % silicone polymers to which various pigments and other additives have been added to give the required physical properties. Liquid properties like viscosity, volume solids, and weight solids shall be determined after conducting different tests. Physical properties of cured silicone coating like elongation, tensile strength, permeance, accelerated weathering, adhesion, tear resistance, and low-temperature flexibility shall be determined after a series of tests.
SCOPE
1.1 This specification covers a liquid-applied solvent dispersed elastomeric coating used as a roofing membrane for spray polyurethane foam (SPF) insulation whose principal polymer in the dispersion contains more than 95 % silicone.
1.2 This specification does not provide guidance for application.
1.3 The following precautionary caveat pertains only to the test method portions, Sections 5 and 6.
1.4 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard.
1.5 This standard may involve hazardous materials, operations, and equipment. 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 requirements prior to use.
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Designation:D6694/D6694M −15
Standard Specification for
Liquid-Applied Silicone Coating Used in Spray Polyurethane
1
Foam Roofing Systems
This standard is issued under the fixed designation D6694/D6694M; 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 D522 Test Methods for Mandrel Bend Test of Attached
Organic Coatings
1.1 This specification covers a liquid-applied solvent dis-
D624 Test Method for Tear Strength of Conventional Vul-
persed elastomeric coating used as a roofing membrane for
canized Rubber and Thermoplastic Elastomers
spray polyurethane foam (SPF) insulation whose principal
D903 Test Method for Peel or Stripping Strength of Adhe-
polymer in the dispersion contains more than 95 % silicone.
sive Bonds
1.2 This specification does not provide guidance for appli-
D1079 Terminology Relating to Roofing and Waterproofing
cation.
D1644 Test Methods for Nonvolatile Content of Varnishes
1.3 The following precautionary caveat pertains only to the D2196 Test Methods for Rheological Properties of Non-
Newtonian Materials by Rotational Viscometer
test method portions, Sections 5 and 6.
D2370 Test Method for Tensile Properties of Organic Coat-
1.4 The values stated in either SI units or inch-pound units
ings
are to be regarded separately as standard. The values stated in
D2697 Test Method for Volume Nonvolatile Matter in Clear
each system may not be exact equivalents; therefore, each
or Pigmented Coatings
system shall be used independently of the other. Combining
D4798 Practice for Accelerated Weathering Test Conditions
values from the two systems may result in non-conformance
and Procedures for Bituminous Materials (Xenon-Arc
with the standard.
Method)
1.5 This standard does not purport to address all of the
E96/E96M Test Methods for Water Vapor Transmission of
safety concerns, if any, associated with its use. It is the
Materials
responsibility of the user of this standard to establish appro-
E1953 Practice for Description of Thermal Analysis and
priate safety, health, and environmental practices and deter-
Rheology Apparatus
mine the applicability of regulatory limitations prior to use.
1.6 This international standard was developed in accor-
3. Terminology
dance with internationally recognized principles on standard-
3.1 Definitions in Terminologies D16 and D1079 shall
ization established in the Decision on Principles for the
apply to this specification.
Development of International Standards, Guides and Recom-
mendations issued by the World Trade Organization Technical
4. Materials and Manufacture
Barriers to Trade (TBT) Committee.
4.1 Composition—The product, as manufactured, shall be in
liquid form for application to SPF surfaces by brushing,
2. Referenced Documents
squeegeeing, rolling, or spraying. The product shall be com-
2
2.1 ASTM Standards:
posed of dispersion containing as the principal polymer more
D16 TerminologyforPaint,RelatedCoatings,Materials,and
than 95 % silicone polymers to which various pigments and
Applications
other additives have been added to give the required physical
properties.
1
This specification is under the jurisdiction of ASTM Committee D08 on
5. Liquid and Physical Properties
Roofing and Waterproofing and is the direct responsibility of Subcommittee D08.09
on Bituminous Emulsions.
5.1 Although the product is supplied as a liquid, its perfor-
Current edition approved Nov. 1, 2015. Published November 2015. Originally
mance is based on the functional properties of the cured
approved in 2001. Last previous edition approved in 2013 as D6694/D6694M – 08
ɛ1
material in film form. The coating is formed into a film fully
(2013) . DOI: 10.1520/D6694_D6694M-15.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or adhered to the substrate.
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
5.2 Liquid Property Requirements—The liquid coating shall
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. comply with the property requirements in Table 1.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
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D6694/D6694M−15
TABLE 1 Liquid Property Requirements
Physical
ASTM Standard Requirements
Properties
Viscosity D2196 3500 to 50 000 CPS
Volume solids D2697 57 % min
Weight solids D1644 As listed by manufacturer
5.3 Cured Film Physical Property Requirements:
5.3.1 Specimen Preparation (Dry Time) (Table 2)—Films
are prepared by applying two coats, with a minimum of an 8-h
drying p
...
This document is not an ASTM standard and is intended only to provide the user of an ASTM standard an indication of what changes have been made to the previous version. Because
it may not be technically possible to adequately depict all changes accurately, ASTM recommends that users consult prior editions as appropriate. In all cases only the current version
of the standard as published by ASTM is to be considered the official document.
´1
Designation: D6694/D6694M − 08 (Reapproved 2013) D6694/D6694M − 15
Standard Specification for
Liquid-Applied Silicone Coating Used in Spray Polyurethane
1
Foam Roofing Systems
This standard is issued under the fixed designation D6694/D6694M; 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
ε NOTE—Units information was editorially corrected in December 2013.
1. Scope
1.1 This specification covers a liquid-applied solvent dispersed elastomeric coating used as a roofing membrane for spray
polyurethane foam (SPF) insulation whose principal polymer in the dispersion contains more than 95 % silicone.
1.2 This specification does not provide guidance for application.
1.3 The following precautionary caveat pertains only to the test method portions, Sections 5 and 6.
1.4 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each
system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the
two systems may result in non-conformance with the standard.
1.5 This standard may involve hazardous materials, operations, and equipment. 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 requirements prior to use.
2. Referenced Documents
2
2.1 ASTM Standards:
D16 Terminology for Paint, Related Coatings, Materials, and Applications
D522 Test Methods for Mandrel Bend Test of Attached Organic Coatings
D624 Test Method for Tear Strength of Conventional Vulcanized Rubber and Thermoplastic Elastomers
D903 Test Method for Peel or Stripping Strength of Adhesive Bonds
D1079 Terminology Relating to Roofing and Waterproofing
D1644 Test Methods for Nonvolatile Content of Varnishes
D2196 Test Methods for Rheological Properties of Non-Newtonian Materials by Rotational Viscometer
D2370 Test Method for Tensile Properties of Organic Coatings
D2697 Test Method for Volume Nonvolatile Matter in Clear or Pigmented Coatings
D4798 Practice for Accelerated Weathering Test Conditions and Procedures for Bituminous Materials (Xenon-Arc Method)
E96/E96M Test Methods for Water Vapor Transmission of Materials
E1953 Practice for Description of Thermal Analysis and Rheology Apparatus
3. Terminology
3.1 Definitions in Terminologies D16 and D1079 shall apply to this specification.
4. Materials and Manufacture
4.1 Composition—The product, as manufactured, shall be in liquid form for application to SPF surfaces by brushing,
squeegeeing, rolling, or spraying. The product shall be composed of dispersion containing as the principal polymer more than 95 %
silicone polymers to which various pigments and other additives have been added to give the required physical properties.
1
This specification is under the jurisdiction of ASTM Committee D08 on Roofing and Waterproofing and is the direct responsibility of Subcommittee D08.06 on Spray
Polyurethane Foam Roof Systems.
Current edition approved March 1, 2008Nov. 1, 2015. Published December 2013November 2015. Originally approved in 2001. Last previous edition approved in 20082013
ɛ1
as D6694 – 08.D6694/D6694M – 08 (2013) . DOI: 10.1520/D6694_D6694M-08R13.10.1520/D6694_D6694M-15.
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM Standards
volume information, refer to the standard’s Document Summary page on the ASTM website.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
D6694/D6694M − 15
5. Liquid and Physical Properties
5.1 Although the product is supplied as a liquid, its performance is based on the functional properties of the cured material in
film form. The coating is formed into a film fully adhered to the substrate.
5.2 Liquid Property Requirements—The liquid coating shall comply with the property requirements in Table 1.
5.3 Cured Film Physical Property Requirements:
5.3.1 Specimen Preparation (Dry Time) (Table 2)—Films are prepared by applying two coats, with a minimum of an 8-h drying
p
...
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