ASTM D6694-08
(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 SI units are used throughout this document. Inch-pound units are in parentheses.
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 −08
StandardSpecification for
Liquid-Applied Silicone Coating Used in Spray Polyurethane
1
Foam Roofing Systems
This standard is issued under the fixed designation D6694; 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 Newtonian Materials by Rotational (Brookfield type)
Viscometer
1.1 This specification covers a liquid-applied solvent dis-
D2370 Test Method for Tensile Properties of Organic Coat-
persed elastomeric coating used as a roofing membrane for
ings
spray polyurethane foam (SPF) insulation whose principal
D2697 Test Method for Volume Nonvolatile Matter in Clear
polymer in the dispersion contains more than 95 % silicone.
or Pigmented Coatings
1.2 This specification does not provide guidance for appli-
D4798 Practice for Accelerated Weathering Test Conditions
cation.
and Procedures for Bituminous Materials (Xenon-Arc
1.3 The following precautionary caveat pertains only to the Method)
E96/E96M Test Methods for Water Vapor Transmission of
test method portions, Sections 5 and 6.
Materials
1.4 SI units are used throughout this document. Inch-pound
units are in parentheses.
3. Terminology
1.5 This standard may involve hazardous materials,
3.1 Definitions in Terminologies D16 and D1079 shall
operations, and equipment. This standard does not purport to
apply to this specification.
address all of the safety concerns, if any, associated with its
use. It is the responsibility of the user of this standard to
4. Materials and Manufacture
establish appropriate safety and health practices and deter-
4.1 Composition—The product, as manufactured, shall be in
mine the applicability of regulatory requirements prior to use.
liquid form for application to SPF surfaces by brushing,
squeegeeing, rolling, or spraying. The product shall be com-
2. Referenced Documents
posed of dispersion containing as the principal polymer more
2
2.1 ASTM Standards:
than 95 % silicone polymers to which various pigments and
D16 TerminologyforPaint,RelatedCoatings,Materials,and
other additives have been added to give the required physical
Applications
properties.
D522 Test Methods for Mandrel Bend Test of Attached
Organic Coatings 5. Liquid and Physical Properties
D624 Test Method for Tear Strength of Conventional Vul-
5.1 Although the product is supplied as a liquid, its perfor-
canized Rubber and Thermoplastic Elastomers
mance is based on the functional properties of the cured
D903 Test Method for Peel or Stripping Strength of Adhe-
material in film form. The coating is formed into a film fully
sive Bonds
adhered to the substrate.
D1079 Terminology Relating to Roofing and Waterproofing
5.2 Liquid Property Requirements—The liquid coating shall
D1644 Test Methods for Nonvolatile Content of Varnishes
comply with the property requirements in Table 1.
D2196 Test Methods for Rheological Properties of Non-
5.3 Cured Film Physical Property Requirements:
5.3.1 Specimen Preparation (Dry Time) (Table 2)—Films
1
This specification is under the jurisdiction of ASTM Committee D08 on
are prepared by applying two coats, with a minimum of an 8-h
Roofing and Waterproofing and is the direct responsibility of Subcommittee D08.06
drying period between coats, to a polyethylene sheet substrate
on Spray Polyurethane Foam Roof Systems.
(from Test Method D2370, 8.2.2) to give a total dry film
Current edition approved March 1, 2008. Published April 2008. Originally
thickness of 0.50 6 0.5 mm (20 6 2 mils). The film is allowed
approved in 2001. Last previous edition approved in 2007 as D6694 – 07. DOI:
10.1520/D6694-08.
to thoroughly dry at 23 6 2°C (73.4 6 3.6°F) and 50 6 10 %
2
For referenced ASTM standards, visit the ASTM website, www.astm.org, or
relative humidity for 336 6 12 h. The film shall be removed
contact ASTM Customer Service at service@astm.org. For Annual Book of ASTM
from the release paper and turned over after the first 168 h to
Standards volume information, refer to the standard’s Document Summary page on
the ASTM website. allow for complete drying.
Copyright © ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States
1
---------------------- Page: 1 ----------------------
D6694−08
2
TABLE 1 Liquid Property Requirements NOTE 2—Based on the irradiance level of 0.35 W/(m · nm) at 340 nm
specified in Practice D4798, the exposure time required to accumulate the
Physical
ASTM Standard Requirements
radiant energy specified in 6.3 is 5000 h.
Properties
Viscosity D2196 3500 to 50 000 CPS
6.4 Permeance Method (Test Method E96/E96M, Procedure
Volume solids D2697 57 % min
B)—A 0.5-mm (20 mils) 6 1
...
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.
Designation:D6694–07 Designation: D 6694 – 08
Standard Specification for
Liquid-Applied Silicone Coating Used in Spray Polyurethane
1
Foam Roofing Systems
This standard is issued under the fixed designation D 6694; 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
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 SI units are used throughout this document. Inch-pound units are in parentheses.
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: C794Test Method for Adhesion-in-Peel of Elastomeric Joint Sealants
D16 Terminology for Paint, Related Coatings, Materials, and Applications D412Test Methods for Vulcanized Rubber and
Thermoplastic ElastomersTension
D 522 Test Methods for Mandrel Bend Test of Attached Organic Coatings
D 624 Test Method for Tear Strength of Conventional Vulcanized Rubber and Thermoplastic Elastomers
D 903 Test Method for Peel or Stripping Strength of Adhesive Bonds
D 1079 Terminology Relating to Roofing and Waterproofing
D 1644 Test Methods for Nonvolatile Content of Varnishes
D 2196 Test Methods for Rheological Properties of Non-Newtonian Materials by Rotational (Brookfield type) Viscometer
D 2370 Test Method for Tensile Properties of Organic Coatings
D 2697 Test Method for Volume Nonvolatile Matter in Clear or Pigmented Coatings
D 4798 Practice for Accelerated Weathering Test Conditions and Procedures for Bituminous Materials (Xenon-Arc Method)
E 96/E 96M Test Methods for Water Vapor Transmission of Materials
G151Practice for Exposing Nonmetallic Materials in Accelerated Test Devices that Use Laboratory Light Sources
G154Practice for Operating Fluorescent Light Apparatus for UV Exposure of Nonmetallic Materials Test Methods for Water
Vapor Transmission of Materials
3. Terminology
3.1 Definitions in Terminologies D 16 and D 1079 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,orspraying.Theproductshallbecomposedofdispersioncontainingastheprincipalpolymermorethan95 %
silicone polymers to which various pigments and other additives have been added to give the required physical properties.
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.
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 MayMarch 1, 2007.2008. Published May 2007.April 2008. Originally approved in 2001. Last previous edition approved in 20012007 as
D 6694 – 017.
2
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM 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 ----------------------
D6694–08
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
period between coats, to a polyethylene sheet substrate (from Test Method D 2370, 8.2.2) to give a to
...
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.
Designation:D6694–07 Designation: D 6694 – 08
Standard Specification for
Liquid-Applied Silicone Coating Used in Spray Polyurethane
1
Foam Roofing Systems
This standard is issued under the fixed designation D 6694; 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.
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 SI units are used throughout this document. Inch-pound units are in parentheses.
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: C794Test Method for Adhesion-in-Peel of Elastomeric Joint Sealants
D 16 Terminology for Paint, Related Coatings, Materials, and Applications D412Test Methods for Vulcanized Rubber and
Thermoplastic ElastomersTension
D 522 Test Methods for Mandrel Bend Test of Attached Organic Coatings
D 624 Test Method for Tear Strength of Conventional Vulcanized Rubber and Thermoplastic Elastomers
D 903 Test Method for Peel or Stripping Strength of Adhesive Bonds
D 1079 Terminology Relating to Roofing and Waterproofing
D 1644 Test Methods for Nonvolatile Content of Varnishes
D 2196 Test Methods for Rheological Properties of Non-Newtonian Materials by Rotational (Brookfield type) Viscometer
D 2370 Test Method for Tensile Properties of Organic Coatings
D 2697 Test Method for Volume Nonvolatile Matter in Clear or Pigmented Coatings
D 4798 Practice for Accelerated Weathering Test Conditions and Procedures for Bituminous Materials (Xenon-Arc Method)
E 96/E 96MTest Methods for Water Vapor Transmission of Materials
G151Practice for Exposing Nonmetallic Materials in Accelerated Test Devices that Use Laboratory Light Sources
G154Practice for Operating Fluorescent Light Apparatus for UV Exposure of Nonmetallic Materials Test Methods for Water
Vapor Transmission of Materials
3. Terminology
3.1 Definitions in Terminologies D 16 and D 1079 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,orspraying.Theproductshallbecomposedofdispersioncontainingastheprincipalpolymermorethan95 %
silicone polymers to which various pigments and other additives have been added to give the required physical properties.
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.
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 MayMarch 1, 2007.2008. Published May 2007.April 2008. Originally approved in 2001. Last previous edition approved in 20012007 as
D 6694 – 017.
2
For referencedASTM standards, visit theASTM website, www.astm.org, or contactASTM 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 ----------------------
D6694–08
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
period between coats, to a polyethylene sheet substrate (from Test Method D 2370, 8.2.2) to give a to
...
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