1、Designation:C162005 Designation: C1620 12Standard Specification forAerosol Polyurethane and Aerosol Latex Foam Sealants1This standard is issued under the fixed designation C1620; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, the
2、year of last revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon () indicates an editorial change since the last revision or reapproval.1. Scope1.1 This specification covers the types, grades, and physical properties of aerosol polyurethane and aerosol latex
3、 foams extrudedfrom pressurized containers and intended for building envelope air barrier sealant applications in building construction.1.2 For specific aerosol foam sealant applications, operational temperature limit criteria shall be as agreed upon between theaerosol sealant manufacturer and the p
4、urchaser.1.3 The values in SI units are to be regarded as standard. The values shown in parentheses are for information andapproximation only.1.4 The committee with jurisdiction over this standard is not aware of any comparable standards published by otherorganizations.1.5 This standard does not pur
5、port to address all of the safety concerns, if any, associated with its use. It is the responsibilityof the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatoryrequirements prior to use.2. Referenced Documents2.1 ASTM Standards:2C16
6、8 Terminology Relating to Thermal InsulationC390 Practice for Sampling and Acceptance of Thermal Insulation Lots C518Test Method for Steady-State ThermalTransmission Properties by Means of the Heat FlowMeter ApparatusC717 Terminology of Building Seals and SealantsC1536 Test Method for Measuring the
7、Yield for Aerosol Foam SealantsC1642 Practice for Determining Air Leakage Rates of Aerosol Foam Sealants and Other Construction Joint Fill and InsulationMaterialsC1643 Test Method to Measuring the Post Dispensing Volumetric Expansion of Aerosol Foam SealantsC1737 Guide for Evaluating Temperature Eff
8、ects to Aerosol Foam Sealant During and After DispensingD883 Terminology Relating to PlasticsD6226 Test Method for Open Cell Content of Rigid Cellular PlasticsE84 Test Method for Surface Burning Characteristics of Building MaterialsE283 Test Method for Determining Rate of Air Leakage Through Exterio
9、r Windows, Curtain Walls, and Doors Under SpecifiedPressure Differences Across the SpecimenE814 Test Method for Fire Tests of Penetration Firestop SystemsE2690 Practice for Specimen Preparation and Mounting of Caulks and Sealants to Assess Surface Burning CharacteristicsIEEE/ASTM SI 10 American Nati
10、onal Standard for Use of the International System of Units (SI) (The Modernized MetricSystem)2.2 Other Documents:SPFA Document AY119 Glossary of Terms Common to the Polyurethane Foam Industry3CAN/CGSB 51.93 Air Barrier Materials41This specification is under the jurisdiction of ASTM Committee C24 on
11、Building Seals and Sealants and is the direct responsibility of Subcommittee C24.61 on AerosolFoam Sealants.Current edition approved Sept. 1, 2005. Published October 2005. DOI: 10.1520/C1620-05.Current edition approved June 1, 2012. Published August 2012. Originally approved in 2005. Last previous e
12、dition approved in 2005 as C1620-05. DOI:10.1520/C1620-12.2For referenced ASTM standards, visit the ASTM website, www.astm.org, or contact ASTM Customer Service at serviceastm.org. For Annual Book of ASTM Standardsvolume information, refer to the standards Document Summary page on the ASTM website.3
13、Available from the Spray Polyurethane Foam Alliance, 440 Fair Lakes Court, Suite 105, Fairfax, VA 22033.4Available from the Canadian Standards Association, 5060 Spectrum Way, Suite 100, Mississauga, ON L4W 5N6 Canada.1This document is not an ASTM standard and is intended only to provide the user of
14、an ASTM standard an indication of what changes have been made to the previous version. Becauseit 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 versionof the standard as publ
15、ished by ASTM is to be considered the official document.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.CAN/ULC-S710.1Proposed Standard for Thermal Insulation-Bead-Applied One-Component Polyurethane Air Sealant Foam,Part 1, Section 6.
16、5.1, “Air Permeance” Standard for Thermal Insulation-Bead-Applied One-Component Polyurethane AirSealant Foam, Part 1, Section 6.5.1, “Air Permeance”4CAN/ULC-S710.2 Proposed Standard for Thermal Insulation-Bead-Applied One-Component Polyurethane Air Sealant Foam,Part 2, Product Installation449 Code o
17、f Federal Regulations 178.335UL 723Surface Burning Characteristics for Materials Use in Plenums Test for Surface Burning Characteristics of BuildingMaterials6UL 1479 Standard for Fire Tests of Through-Penetration Firestops63. Terminology3.1 Definitions: For definitions of terms used in this specific
18、ation, refer to Terminologies C168, C717, D883, and SPFADocument AY119. (SPFA stands for Spray Polyurethane Foam Alliance.33.1.1 tack-free time, nas defined in 10.2.3.1.2 trim time, nas defined in 10.2.4. Classification4.1 Type I Aerosol Polyurethane Foam Sealants in containers one literlitre or les
19、s.4.2 Type II Aerosol Latex Foam Sealants in containers one literlitre or less.4.3 Grade 1 Aerosol Foam Sealants contain flammable gas blowing agent or propellant, or both, and are classified as aflammable aerosol by DOT.4.4 Grade 2 Aerosol Foam Sealants contain nonflammable blowing agent or propell
20、ants, or both, and are not classifiedflammable.5. Ordering Information5.1 Orders for materials purchased under this specification shall include the following information:5.1.1 Manufacturer,5.1.2 Product identification information or product name,5.1.3 ASTM Specification C1620,5.1.4 Product classific
21、ation (see Section 4),5.1.5 Certificate of compliance (if required),5.1.6 Ordering date,5.1.7 Target delivery date,5.1.8 Special packaging or handling (if required),5.1.9 Special markings (if required), and5.1.10 Special compliance information, as applicable for the user.5.2 Purchases for government
22、al agencies shall comply with their special needs.6. Materials and Manufacture6.1 Aerosol polyurethane foam sealants are produced by the catalyzed chemical polymerization reaction of proprietary chemicalformulations and appropriate blowing agents. The product of this reaction is bead extruded from p
23、ressurized containers througha nozzle device at the point of application to a building joint as a foamed sealant material. Bead foam curing is achieved withatmospheric moisture. moisture from atmosphere and substrates.6.2 Aerosol latex foam sealants are produced by the blending of proprietary formul
24、ations and appropriate blowing agents. Thismixture is bead extruded from pressurized containers through a nozzle device at the point of application to a building joint asfoamed sealant material. Bead foam drying then continues over a brief period of time with the loss of formulation moisture.6.3The
25、aerosol foam sealant product shall be suitable for shelf-stable pressurized containment, ready to dispense.6.4In most field applications, the aerosol foam sealant is foamed-in-place directly into open joints and cavities in buildingenvelope wall and roof areas by consumers or trained professionals t
26、o resist the undesirable transmission of moisture, conditionedair, heat, and atmospheric air infiltration/exfiltration of gases and heat energy.6.3 Aerosol foam sealant can be used as an alternative Fireblocking sealing material if it meets all requirements per buildingcodes.An evaluation report, su
27、ch as ICC-ESR report, can serve as such qualification and will detail the specific sealing applicationsthat are recognized.6.3.1 Fireblocking is the restriction of hidden fire movement via the inside of hollow concealed spaces in wood frame walls.It is typically accomplished by the construction of t
28、op plate and vertical studs (usuallya2by4)inthewall. Gaps in the plates5Available from U.S. Government Printing Office, Superintendent of Documents, 732 N. Capitol St., NW, Mail Stop: SDE, Washington, DC 20401.6Available from Underwriters Laboratories (UL), Corporate Progress, 333 Pfingsten Rd., Nor
29、thbrook, IL 60062.C1620 122or studs that accommodate wiring or piping could allow the free passage of flame or hot gases, and should be sealed withFireblocking material. These materials can be a prescribed material or alternative material that meets comparative testingrequirement of building code.6.
30、3.2 A qualified Fireblocking foam sealant may be only tested per modified Test Method E814 as a part of comparative testingprogram; it cannot be used in an Firestop assembly unless fully tested per Test Method E814 or UL 1479.6.4 Aerosol foam sealant can be part of Firestop assembly if it is fully t
31、ested per Test Method E814 or UL 1479. The aerosolfoam sealant as Firestop component must be installed as prescribed in the test report or listing program such as Through-penetration Firestop Systems of Underwriters Laboratory. A qualified Firestop assembly shall be rated in terms of T and F rating.
32、6.4.1 Firestop refers to Through-penetration Firestop Systems that must be fully tested per Test Method E814 or UL 1479 andthe assembly must be rated in terms of T and F rating.6.5 The aerosol foam sealant product shall be suitable for shelf-stable pressurized containment, ready to dispense.6.6 In m
33、ost field applications, the aerosol foam sealant is foamed-in-place directly into open joints and cavities in buildingenvelope wall and roof areas by consumers or trained professionals to resist the undesirable transmission of moisture, conditionedair, heat, and atmospheric air infiltration/exfiltra
34、tion of gases and heat energy.7. Physical Requirements7.1 Aerosol foam sealants shall have guide physical property characteristics as shown in Table 1.7.2Other physical properties shall be specified as agreed upon between the manufacturer and the purchaser, if required forengineering design purposes
35、, such as the anticipation of service temperature extremes and conductive thermal resistance values.NOTE1While apparent foam density is not a specification requirement here, its determination using data obtained in Test Method C1536 may bebeneficial for field quality control purposes (calculate foam
36、 weight/foam volume and report apparent density in kg/m3and lb/ft3).7.2 Other physical properties shall be specified as agreed upon between the manufacturer and the purchaser, if required forengineering design purposes, such as the anticipation of service temperature extremes, conductive thermal res
37、istance values, or fireresistance requirements.8. Sampling8.1 For the purposes of sampling, the lot shall consist of all the single-use containers of sealant purchased and delivered at onetime.8.2 Sampling for inspection tests, if required, shall be for physical properties agreed upon between sealan
38、t manufacturer andpurchaser.TABLE 1 Properties of Aerosol Foam SealantsPhysical Property Test Method Type I Grade 1 Type I Grade 2 Type II Grade 1Linear yield C1536 Report value forproductreport value for product report value for productLinear yield C1536 Report value forproductReport value for prod
39、uct Report value for productOpen Cell Content D6226 Report Report ReportAir permeability (max flow rate)E2831.5 L/(s m2)(0.3ft3/(minft2)1.5 L/(s m2) (0.3ft3/(minft2)1.5 L/(s m2)(0.3ft3/ (minft2)Air permeability (max flow rate) C1642E2831.5 L/(s m2)(0.3ft3/(minft2)1.5 L/(s m2) (0.3ft3/(minft2)1.5 L/(
40、s m2)(0.3ft3/ (minft2)0.02 L/(s m) (0.01ft3/ (min ft)0.02 L/(s m) (0.01 ft3/(min ft)0.02 L/(s m) (0.01 ft3/(min ft)Apparent aged R valueper thickness of 2.54 cm/1.00in. (min allowed value)C518 0.048 W/m (3.0 ft2hF/Btu)0.048 W/m (3.0 ft2hF/Btu)0.048 W/m (3.0 ft2hF/Btu)Tack-free time (max) see 10.2 30
41、 min. 30 min. 30 min.Trim time (max) see 10.2 2 h 2 h N/AFlame spread index E84 as labeled as labeled as labeledSmoke index E84 as labeled as labeled as labeledPost-dispensingexpansion/ contractionAconsultmanufacturerconsult manufacturer consult manufacturer consult manufacturerPost-dispensingexpans
42、ion/ contractionAC1643 Report Report RerShear strength (adhesion)Aconsultmanufacturerconsult manufacturer consult manufacturer consult manufacturerShear strength (adhesipon)Aconsultmanufacturerconsult manufacturer consult manufacturer consult manufacturerTensile strength (adhesion) consultmanufactur
43、erconsult manufacturer consult manufacturer consult manufacturerShelf life (can) min stored in standardlaboratory C/RH12 months 12 months 12 monthsFreeze/thaw resistance (can)AconsultmanufacturerN/A N/A 3 cyclesASubcommittee C24.61 continues to develop standardized ASTM International test methods fo
44、r these properties. Until consensus standards are established for thesetest methods, consult with product manufacturers regarding their product values and the test methods used.C1620 1238.3 Refer to Practice C390 for sampling practices as appropriate.9. Test Specimen Preparation9.1 Aerosol foam seal
45、ant specimens for physical property testing shall be made in accordance with the manufacturersrecommendations unless specified differently herein.9.1.1 Pressurized containers shall be conditioned for 24 to 48 h under controlled temperature and humidity environmentconditions before the extrusion of f
46、oam sealant beads onto an approved substrate surface.9.1.2 Unless otherwise specified and reported, the controlled environment conditions shall be 23 6 2C and 50 6 5 % RH.9.1.3 Replicate testing specimens shall be of sufficient quantity and dimensions to satisfy specific test requirements.10. Test M
47、ethods10.1 YieldDetermine linear bead and volumetric yield for aerosol foam sealants in accordance with Test Method C1536. Referto Note 1 regarding apparent density calculated from data obtained in this test method. Determine linear bead and volumetricyield for aerosol foam sealants in accordance wi
48、th Test Method C1536.10.2 Tack-free Time and Trim TimeDetermine aerosol foam sealant curing times by subjective visual observations, using aclean, flat, wooden tongue depressor, a sharp box-cutter knife, and a 30 cm (11.81 in.) length of 1 cm (0.39 in.) diameter bead foamsealant freshly dispensed un
49、der standard laboratory conditions of temperature and humidity (Reference Test Method C1536). Begintiming observations and periodically touch the foam bead surface with the clean, flat, tongue depressor surface until the beadsurface no longer adheres after gentle contact pressure. Report the elapsed time, to the nearest minute, as “tack-free” time. Then,cut through the bead at 1min intervals until the knife blade is free of wet (sticky) sealant foam. Record that time as “trim time.”10.3 Flame SpreadWhen required, determine spread of flame characte
