1、Designation: C1620 16Standard 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 year of last revisio
2、n. 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 physicalproperties of aerosol polyurethane and aerosol latex foamsextruded from p
3、ressurized containers and intended for buildingenvelope air barrier sealant applications in building construc-tion.1.2 For specific aerosol foam sealant applications, opera-tional temperature limit criteria shall be as agreed uponbetween the aerosol sealant manufacturer and the purchaser.1.3 The val
4、ues 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 notaware of any comparable standards published by other orga-nizations.1.5 This standard does not purport to address all
5、of thesafety concerns, if any, associated with its use. It is theresponsibility of the user of this standard to establish appro-priate safety and health practices and determine the applica-bility of regulatory requirements prior to use.2. Referenced Documents2.1 ASTM Standards:2C168 Terminology Rela
6、ting to Thermal InsulationC390 Practice for Sampling and Acceptance of ThermalInsulation LotsC717 Terminology of Building Seals and SealantsC1536 Test Method for Measuring the Yield for AerosolFoam SealantsC1642 Practice for Determining Air Leakage Rates of Aero-sol Foam Sealants and Other Construct
7、ion Joint Fill andInsulation MaterialsC1643 Test Method to Measuring the Post Dispensing Volu-metric Expansion of Aerosol Foam SealantsC1737 Guide for Evaluating Temperature Effects to AerosolFoam Sealant During and After DispensingD883 Terminology Relating to PlasticsD6226 Test Method for Open Cell
8、 Content of Rigid CellularPlasticsE84 Test Method for Surface Burning Characteristics ofBuilding MaterialsE283 Test Method for Determining Rate of Air LeakageThrough Exterior Windows, Curtain Walls, and DoorsUnder Specified Pressure Differences Across the Speci-menE814 Test Method for Fire Tests of
9、Penetration FirestopSystemsE2690 Practice for Specimen Preparation and Mounting ofCaulks and Sealants to Assess Surface Burning Charac-teristicsIEEE/ASTM SI 10 American National Standard for Use ofthe International System of Units (SI) (The ModernizedMetric System)2.2 Other Documents:SPFA Document A
10、Y119 Glossary of Terms Common to thePolyurethane Foam Industry3CAN/CGSB 51.93 Air Barrier Materials4CAN/ULC-S710.1 Standard for Thermal Insulation-Bead-Applied One-Component Polyurethane Air Sealant Foam,Part 1, Section 6.5.1, “Air Permeance”4CAN/ULC-S710.2 Proposed Standard for ThermalInsulation-Be
11、ad-Applied One-Component PolyurethaneAir Sealant Foam, Part 2, Product Installation449 Code of Federal Regulations 178.335UL 723 Test for Surface Burning Characteristics of BuildingMaterials6UL 1479 Standard for Fire Tests of Through-PenetrationFirestops61This specification is under the jurisdiction
12、 of ASTM Committee C24 onBuilding Seals and Sealants and is the direct responsibility of Subcommittee C24.61on Aerosol Foam Sealants.Current edition approved Jan. 1, 2016. Published February 2016. Originallyapproved in 2005. Last previous edition approved in 2012 as C1620-12. DOI:10.1520/C1620-16.2F
13、or referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.3Available from the Spray Polyurethane Foam Alliance, 440 Fair
14、Lakes Court,Suite 105, Fairfax, VA 22033.4Available from the Canadian Standards Association, 5060 Spectrum Way, Suite100, Mississauga, ON L4W 5N6 Canada.5Available from U.S. Government Printing Office, Superintendent ofDocuments, 732 N. Capitol St., NW, Mail Stop: SDE, Washington, DC 20401.6Availabl
15、e from Underwriters Laboratories (UL), Corporate Progress, 333Pfingsten Rd., Northbrook, IL 60062.Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States13. Terminology3.1 Definitions:3.1.1 For definitions of terms used in this specification,
16、 referto Terminologies C168, C717, D883, and SPFA DocumentAY119. (SPFAstands for Spray Polyurethane FoamAlliance.)33.1.2 tack-free time, nas defined in 10.2.3.1.3 trim time, nas defined in 10.2.4. Classification4.1 Type I Aerosol Polyurethane Foam Sealants in contain-ers one litre or less.4.2 Type I
17、I Aerosol Latex Foam Sealants in containers onelitre or less.4.3 Grade 1 Aerosol Foam Sealants contain flammable gasblowing agent or propellant, or both, and are classified as aflammable aerosol by DOT.4.4 Grade 2 Aerosol Foam Sealants contain nonflammableblowing agent or propellants, or both, and a
18、re not classifiedflammable.5. Ordering Information5.1 Orders for materials purchased under this specificationshall 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 classification (see Section 4)
19、,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 theuser.5.2 Purchases for governmental agencies shall comp
20、ly withtheir special needs.6. Materials and Manufacture6.1 Aerosol polyurethane foam sealants are produced by thecatalyzed chemical polymerization reaction of proprietarychemical formulations and appropriate blowing agents. Theproduct of this reaction is bead extruded from pressurizedcontainers thro
21、ugh a nozzle device at the point of application toa building joint as a foamed sealant material. Bead foam curingis achieved with moisture from atmosphere and substrates.6.2 Aerosol latex foam sealants are produced by the blend-ing of proprietary formulations and appropriate blowingagents. This mixt
22、ure is bead extruded from pressurized con-tainers through a nozzle device at the point of application to abuilding joint as foamed sealant material. Bead foam dryingthen continues over a brief period of time with the loss offormulation moisture.6.3 Aerosol foam sealant can be used as an alternativeF
23、ireblocking sealing material if it meets all requirements perbuilding codes. An evaluation report, such as ICC-ESR report,can serve as such qualification and will detail the specificsealing applications that are recognized.6.3.1 Fireblocking is the restriction of hidden fire movementvia the inside o
24、f hollow concealed spaces in wood frame walls.It is typically accomplished by the construction of top plate andvertical studs (usuallya2by4)inthewall. Gaps in the platesor studs that accommodate wiring or piping could allow thefree passage of flame or hot gases, and should be sealed withFireblocking
25、 material. These materials can be a prescribedmaterial or alternative material that meets comparative testingrequirement of building code.6.3.2 A qualified Fireblocking foam sealant may be onlytested per modified Test Method E814 as a part of comparativetesting program; it cannot be used in an Fires
26、top assemblyunless fully tested per Test Method E814 or UL 1479.6.4 Aerosol foam sealant can be part of Firestop assembly ifit is fully tested per Test Method E814 or UL 1479. The aerosolfoam sealant as Firestop component must be installed asprescribed in the test report or listing program such asTh
27、rough-penetration Firestop Systems of Underwriters Labo-ratory. A qualified Firestop assembly shall be rated in terms ofT and F rating.6.4.1 Firestop refers to Through-penetration Firestop Sys-tems that must be fully tested per Test Method E814 or UL1479 and the assembly must be rated in terms of T
28、and F rating.6.5 The aerosol foam sealant product shall be suitable forshelf-stable pressurized containment, ready to dispense.6.6 In most field applications, the aerosol foam sealant isfoamed-in-place directly into open joints and cavities inbuilding envelope wall and roof areas by consumers or tra
29、inedprofessionals to resist the undesirable transmission of moisture,conditioned air, heat, and atmospheric air infiltration/exfiltration of gases and heat energy.7. Physical Requirements7.1 Aerosol foam sealants shall have physical propertycharacteristics as shown in Table 1.7.2 Other physical prop
30、erties shall be specified as agreedupon between the manufacturer and the purchaser, if requiredfor engineering design purposes, such as the anticipation ofservice temperature extremes, conductive thermal resistancevalues, or fire resistance requirements.8. Sampling8.1 For the purposes of sampling, t
31、he lot shall consist of allthe single-use containers of sealant purchased and delivered atone time.8.2 Sampling for inspection tests, if required, shall be forphysical properties agreed upon between sealant manufacturerand purchaser.8.3 Refer to Practice C390 for sampling practices as appro-priate.9
32、. Test Specimen Preparation9.1 Aerosol foam sealant specimens for physical propertytesting shall be made in accordance with the manufacturersrecommendations unless specified differently herein.C1620 1629.1.1 Pressurized containers shall be conditioned for 24 to48 h under controlled temperature and h
33、umidity environmentconditions before the extrusion of foam sealant beads onto anapproved substrate surface.9.1.2 Unless otherwise specified and reported, the con-trolled environment conditions shall be 23 6 2C and 50 65 % RH.9.1.3 Replicate testing specimens shall be of sufficientquantity and dimens
34、ions to satisfy specific test requirements.10. Test Methods10.1 YieldDetermine linear bead and volumetric yield foraerosol foam sealants in accordance with Test Method C1536.10.2 Tack-free Time and Trim TimeDetermine aerosolfoam sealant curing times by subjective visual observations,using a clean, f
35、lat, wooden tongue depressor, a sharp box-cutterknife, and a 30 cm (11.81 in.) length of 1 cm (0.39 in.) diameterbead foam sealant freshly dispensed under standard laboratoryconditions of temperature and humidity (Reference TestMethod C1536). Begin timing observations and periodicallytouch the foam
36、bead surface with the clean, flat, tonguedepressor surface until the bead surface no longer adheres aftergentle contact pressure. Report the elapsed time, to the nearestminute, as “tack-free” time. Then, cut through the bead at1min intervals until the knife blade is free of wet (sticky)sealant foam.
37、 Record that time as “trim time.”10.3 Flame SpreadWhen required, determine spread offlame characteristics in accordance with Test Method E84 (notethat foam sealants are tested in the “Caulkings and Sealants”methodology rather than the “Foamed Plastics” methodology).Foam sealants are typically tested
38、 as nominal 2 cm (34-in.)diameter beads laid down in strips on cementitious board, withthe percent coverage of foam beads per surface area of boardreported.NOTE 1Typically, bead foam sealants are flame spread tested with two2cm(34-in.) diameter beads of sealant foam covering 8.3 % of theexposed samp
39、le area. UL 723 test method results are often substituted andaccepted as equivalent to E84 test methods by regulatory authorities.10.4 Smoke IndexSee 10.3 for Smoke Index (SmokeDeveloped) by light obscuration in accordance with TestMethod E84.10.5 Post Dispensing Expansion or ContractionDetermine th
40、e Post Dispensing Expansion or contraction perPractice C1642.10.6 Air Infiltration or PermeanceDetermine the AirLeakage Rate per Practice C1642. References are provided toCanadian General Standards Board (GCSB) document CAN/CGSB 51.93 “Air Barrier Materials,” Underwriters Laborato-ries of Canada (Na
41、tional Standard of Canada) documentCAN/ULC-S710.1 “Proposed Standard for ThermalInsulation-Bead-Applied One Component Polyurethane AirSealant Foam, Part 1 Material Specification,” Section 6.5.1,“Air Permeance,” and Test Method E283.10.7 Shelf Life (of Un-opened Pressurized Product inContainerDetermi
42、ne product shelf life by subjective obser-vation after shelf storage in a controlled air environment(standard laboratory air, see 9.1.2). After such storage, accept-able bead foam sealant shall extrude from its container at a ratesuch that a continuous bead of quality product is obtained at arate to
43、 fill gaps and cracks effectively, that is, product suitablefor the uses intended.10.8 Freeze-Thaw Resistance (of Unused Pressurized Prod-uct in Container)Subcommittee C24.61 continues to developa standardized test for this important physical property. Until aconsensus standard is established, consu
44、lt aerosol foam sealantmanufacturers regarding their product values and test method.10.9 Temperature Effects (Optional)Refer to GuideC1737.11. Packaging and Package Marking11.1 Unless otherwise specified or agreed upon betweenmanufacturer and buyer, the fluid components of aerosol foamsealant shall
45、be packaged in the manufacturers standardcommercial containers.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 productOpen Cell Content D6226 Repo
46、rt Report ReportAir permeability (max flow rate) C1642E2831.5 L/(s m2)(0.3ft3/(minft2)1.5 L/(s m2) (0.3ft3/(minft2)1.5 L/(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)Tack-free time (max) see 10.2 30 min. 30 min. 30 min.Trim time
47、(max) see 10.2 2h 2h N/AFlame spread index E84 as labeled as labeled as labeledSmoke index E84 as labeled as labeled as labeledPost-dispensing expansion/ con-tractionAC1643 Report Report ReportShelf life (can) min stored in standardlaboratory C/RH12 months 12 months 12 monthsFreeze/thaw resistance (
48、can)Aconsult manufac-turerN/A N/A 3 cyclesASubcommittee C24.61 continues to develop standardized ASTM International test methods for these properties. Until consensus standards are established for these testmethods, consult with product manufacturers regarding their product values and the test metho
49、ds used.C1620 16311.1.1 Aerosol foam sealants conforming to this specifica-tion shall be packaged in containers not exceeding 1 L in fluidcapacity.11.1.2 Sealant containers shall meet the requirements ofD.O.T. 49 Code of Federal Regulations 178.33 Spec. 2P, orSpec. 2Q, or both.11.2 Each container shall be marked with the followinginformation:11.2.1 Manufacturers name and address,11.2.2 Manufacturers product designation and productioncode date,11.2.3 ASTM Specification C1620 compliance,11.2.4 Manufacturers lot number, date of production orexpiration
