1、Designation: C1115 06 (Reapproved 2011)Standard Specification forDense Elastomeric Silicone Rubber Gaskets andAccessories1This standard is issued under the fixed designation C1115; the number immediately following the designation indicates the year oforiginal adoption or, in the case of revision, th
2、e 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 describes products composed of denseelastomeric silicone rubber that are fabricated into
3、gaskets andaccessories (such as setting blocks, spacers, and shims) for usein sealing and glazing applications in building construction.These products are used to seal or serve as components ofcompression sealing systems between mechanically restrainedsurfaces in building construction and also as co
4、mponents instructural silicone sealant glazing systems.1.2 The following precautionary statement pertains only tothe test method portion, Section 10, of this specification. Thisstandard does not purport to address all of the safety concerns,if any, associated with its use. It is the responsibility o
5、f the userof this standard to establish appropriate safety and healthpractices and determine the applicability of regulatory limita-tions prior to use.1.3 Test Method C1166, as referenced in this specification,should be used to measure and describe the properties ofmaterials, products, or assemblies
6、 in response to heat and flameunder controlled laboratory conditions and should not be usedto describe or appraise the fire hazard or fire risk of materials,products, or assemblies under actual fire conditions. However,results of this test may be used as elements of a fire riskassessment that takes
7、into account all of the factors which arepertinent to an assessment of the fire hazard of a particular enduse.1.4 The values stated in metric (SI) units are to be regardedas the standard.The inch-pound values given in parentheses areprovided for information purposes only.1.5 The committee with juris
8、diction over this standard is notaware of any comparable standards published by other orga-nizations.2. Referenced Documents2.1 ASTM Standards:2C717 Terminology of Building Seals and SealantsC1087 Test Method for Determining Compatibility ofLiquid-Applied Sealants with Accessories Used in Struc-tura
9、l Glazing SystemsC1166 Test Method for Flame Propagation of Dense andCellular Elastomeric Gaskets and AccessoriesD395 Test Methods for Rubber PropertyCompression SetD412 Test Methods for Vulcanized Rubber and Thermo-plastic ElastomersTensionD573 Test Method for RubberDeterioration in an AirOvenD624
10、Test Method for Tear Strength of Conventional Vul-canized Rubber and Thermoplastic ElastomersD792 Test Methods for Density and Specific Gravity (Rela-tive Density) of Plastics by DisplacementD925 Test Methods for Rubber PropertyStaining of Sur-faces (Contact, Migration, and Diffusion)D1149 Test Meth
11、ods for Rubber DeteriorationCrackingin an Ozone Controlled EnvironmentD1566 Terminology Relating to RubberD2137 Test Methods for Rubber PropertyBrittlenessPoint of Flexible Polymers and Coated FabricsD2240 Test Method for Rubber PropertyDurometerHardnessD3182 Practice for RubberMaterials, Equipment,
12、 andProcedures for Mixing Standard Compounds and Prepar-ing Standard Vulcanized Sheets2.2 Rubber Manufacturers Association (RMA) Standard:Rubber Handbook, Fourth Ed., December 198432.3 Other Documents:1This specification is under the jurisdiction of ASTM Committee C24 onBuilding Seals and Sealants a
13、nd is the direct responsibility of Subcommittee C24.73on Compression Seal and Lock Strip Gaskets.Current edition approved June 1, 2011. Published August 2011. Originallyapproved in 1991. Last previous edition approved in 2006 as C1115 06. DOI:10.1520/C1115-06R11.2For referenced ASTM standards, visit
14、 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.3.Available from Rubber Manufacturers Association (RMA), 1400 K St., NW,Suite 900, Washington, DC
15、20005, http:/www.rma.org.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.Uniform Freight Classification Rules4National Motor Freight Classification Rules53. Terminology3.1 Refer to Terminology C717 for definitions of the fol-lowing t
16、erms used in this specification: compound, compres-sion gasket, edge spacer, elastomer, elastomeric, expansiongasket, gasket, hardness, seal, setting block, shim spacer, andspacer.3.2 Refer to Terminology D1566 for definitions of thefollowing terms used in this specification: compression set,ultimat
17、e elongation, tear strength, tensile strength, and poly-mer.4. Classification4.1 The products described by this specification are classi-fied by type, hardness, class, and surface.4.2 Type:4.2.1 Type T, Tear ResistantIn general these productshave a higher level of tear resistance, midrange heat agin
18、gcharacteristics, midrange compression set resistance, and 30 to70 durometer hardness. This type is applicable where finishedproducts are intended to bridge or to cover a space (forexample, expansion joint gaskets), or where high tear strengthis required due to conditions of exposure or usage.4.2.2
19、Type C, Compression Set ResistantIn general, theseproducts have a lower level of tear resistance, above midrangeheat aging characteristics, a high level of compression setresistance, and 30 to 85 durometer hardness. This type isapplicable where finished products are used as compressiongaskets, or wh
20、ere low compression set is required due toconditions of exposure or usage; and as settingblocks, spacers,shims, or other accessories in glazing and sealing systems.4.3 HardnessEach type described in 4.2 is subdividedinto various hardnesses, based on nominal durometer hardnessas shown in Table 1 and
21、Table 2. For example, Grade H3 is 30durometer.4.4 Class:4.4.1 Flame propagation characteristics of the finished prod-ucts can be varied depending on the degree of exposure,expected usage, and intended durability desired. Productsdescribed by this specification shall be classified as to flamepropagat
22、ion as follows:4.4.1.1 Class FResistance to flame propagation is re-quired.4.4.1.2 When no flame propagation resistance is required,no class designation should be used.4.5 Surface:4.5.1 Consideration of product surface requirements may benecessary. During the production of these products the use ofv
23、arious lubricants, release agents, dusting agents, and othersolutions may be required. It may be necessary after vulcani-zation to remove these materials from the surfaces of theproduct because of appearance, fabrication, or usage require-ments. All products do not require removal of those materials
24、or removal to the same degree of cleanliness.4.5.2 Products may also be required to develop adhesion orto not develop adhesion to sealants with which they are incontact.4.5.3 Products described by this specification shall be clas-sified as to surface condition as follows:4.5.3.1 Surface S1The surfac
25、e of the product shall besmooth, clean, free from any foreign matter, and shall not allowadhesion of sealants (see Note 1).4Available from Western Railroad Assn, Department of Services and Supply,Room 1150, 222 S. Riverside Plaza, Chicago, IL 60606-5945.5Available from National Motor Freight Assn, 2
26、200 Mill Road, Alexandria, VA22314.TABLE 1 Requirements for Dense Elastomeric Silicone Rubber Gaskets and Accessories, Type TTear ResistantPropertyHardnessTest Method34567Low temperature flexibilityAAAAAD2137Hardness, Type A durometer, 65points30 40 50 60 70 D2240Compression set, max % 30 30 30 30 3
27、0 D395Tensile strength, min, MPa (psi) 7 (1015) 8 (1160) 8 (1160) 8 (1160) 7 (1015) D412Ultimate elongation, min % 500 500 500 400 200 D412Heat aging D573Hardness change, max durometerpoints610 610 610 610 610Tensile strength change, max % 620 620 620 620 620Ultimate elongation change, max % 630 630
28、 630 630 630Ozone resistanceBBBBBD1149(Specimen A)Tear Strength, min, kN/m (ppi) 25 (143) 25 (143) 26 (149) 26 (149) 25 (143) D624Flame propagationC, mm (in.) 100 (4) 100 (4) 100 (4) 100 (4) 100 (4) C1166Specific gravityDDDDDD792StainingEEEEED925ColorFFFFFGANo failure.BNo cracks at 73 magnification.
29、CIf Class F-Resistance to flame propagation is required.DWithin 60.05 of qualified compound.EAs specified by purchaser (see 10.11).FAs specified by purchaser.GSee 10.12.C1115 06 (2011)24.5.3.2 Surface S2The surface of the product shall besmooth, clean, free from any foreign matter, and shall allowad
30、hesion of sealants (see Note 1).NOTE 1Applied treatments, such as dusting or coating to the adhesionsurface may be necessary to meet this requirement.4.5.3.3 Surface S3The product shall have a surface that issmooth, clean, and free from any foreign matter.4.5.4 Products not requiring special cleanin
31、g for removal ofprocessing agents and materials should not be assigned asurface designation code.4.6 The following is an illustration of the use of theclassification system for a line call-out. Expansion gasketsshall be ASTM C1115, TH5FS3.Type Hardness Class SurfaceTH5FS34.6.1 Other examples of line
32、 call-outs would be: edgespacers for structural silicone glazing shall be ASTM C1115,CH6S1; compression seal gaskets shall be ASTM C1115,CH7S2; and setting blocks shall beASTM C1115, CH9. Theseexamples are not to be construed as a specification for theseitems.5. Materials and Manufacture5.1 The sili
33、cone rubber shall be manufactured from virginpolymer, that when properly compounded and cured, willresult in an elastomer that will comply with this specification.5.2 The compound in its final shape shall be free of visibleinternal porosity, surface defects, and dimensional irregulari-ties that affe
34、ct serviceability and durability.5.3 Unless otherwise specified, the compound color shall beblack. If colors other than black are specified, the compound inthe color specified shall also meet the requirements of thisspecification.6. Dimensions and Permissible Variations6.1 Dimensions can be affected
35、 by distortions induced byconditions of storage or shipping as well as temperature andhumidity variations. Prior to measuring the product, it shall beunpacked and conditioned in an unstressed state for 24 h at 236 2C (73 6 4F) and 50 6 5 % relative humidity.6.2 Permissible variation in cross-section
36、al dimensions shallbe as specified in Table 3 unless otherwise agreed uponbetween the purchaser and the supplier.6.3 Tolerances for squareness and flatness are not includedin this specification, due to the difficulty of establishingmeaningful limits to satisfy a wide variety of applications.These to
37、lerances should be as agreed upon between thesupplier and purchaser.TABLE 2 Requirements for Dense Elastomeric Silicone Rubber Gaskets and Accessories, Type CCompression Set ResistantPropertyHardnessTest Method3456789Low temperature flexibilityAAAAAAAD2137Hardness, Type A durometer, 65points30 40 50
38、 60 70 80 85 D2240Compression set, max % 15 15 15 15 15 20 25 D395Tensile strength, min, MPa (psi) 5 (725) 5 (725) 5 (725) 5 (725) 5 (725) 5 (725) 5 (725) D412Ultimate elongation, min, % 350 300 250 200 125 100 60 D412Heat aging D573Hardness change, max, durometerpoints605 605 605 605 605 605 605Ten
39、sile strength change, max, % 615 615 615 615 615 615 615Ultimate elongation change,max, %630 630 630 630 630 630 630Ozone resistanceBBBBBBBD1149(Specimen A)Tear strength, min, kN/m (ppi) 9 (51) 9 (51) 9 (51) 9 (51) 9 (51) 9 (51) 7 (40) D624Flame propagationC, mm (in.) 100 (4) 100 (4) 100 (4) 100 (4)
40、 100 (4) 100 (4) 100 (4) C1166Specific gravityDDDDDDDD792StainingEEEEEEED925ColorFFFFFFFGANo failure.BNo cracks at 73 magnification.CIf Class F-Resistance to flame propagation is required.DWithin6 0.05 of qualified compound.EAs specified by purchaser, see 10.11.FAs specified by purchaser.GSee 10.12.
41、TABLE 3 Standards for Cross-Sectional ToleranceNOTE 1Dimensional tolerances for outside diameters, inside diam-eters, wall thickness, width, height, and general cross-sectional dimen-sions of extrusionsRubber Manufacturers AssociationARMA Class 2 Precision RMA Class 2 PrecisionDrawing Designation E2
42、 Drawing Designation E2Dimensions (in inches) Dimensions (in Millimeters)Above Up To Above Up To0 0.06 60.010 0 1.5 60.250.06 0.10 0.014 1.5 2.5 0.350.10 0.16 0.016 2.5 4.0 0.400.16 0.25 0.020 4.0 6.3 0.500.25 0.39 0.027 6.3 10.0 0.700.39 0.63 0.031 10.0 16.0 0.800.63 0.98 0.039 16.0 25.0 1.000.98 1
43、.57 0.051 25.0 40.0 1.301.57 2.48 0.063 40.0 63.0 1.602.48 3.94 0.079 63.0 100.0 2.00AAdapted from Rubber Manufacturers Association Handbook, Table 13, FifthEd., 1992C1115 06 (2011)37. Requirements7.1 The physical, mechanical, and performance propertiesof the material shall conform to the requiremen
44、ts as describedby Table 1 and Table 2.8. Significance and Use8.1 This specification describes types (based on resistanceto tearing and compression set), grades (based on durometerhardness), class (based on flame propagation requirements),and surfaces (based on surface characteristics) of products as
45、listed in Section 4 for various applications. It is essential,therefore, that the applicable type, grade, class, and surface bespecified, as well as other options stated, so that the properproduct is provided for the intended use.9. Sampling9.1 Samples for testing to the requirements of this specifi
46、-cation shall be taken from the finished product whereverpossible.9.2 When the size or shape of the finished product makes itimpossible to obtain the type of samples indicated by thevarious test methods, the manufacturer shall furnish a sufficientnumber of appropriate test slabs, strips or blocks, p
47、repared inaccordance with Recommended Practice D3182. The slabs,strips, or blocks shall be prepared from the same compoundand shall be of a comparable state of cure as the finishedproduct.10. Test Methods10.1 Low Temperature FlexibilityTest Methods D2137,Method A. All test specimens shall exhibit no
48、 failure at orabove 40C (40F). Dimethylpolysiloxane fluids shall notbe used in the performance of this test method.10.2 HardnessTest Method D2240, Type A Durometer.Depending on the size and shape of the product, measurehardness on a finished surface, a squarely cut end, or a slicedor buffed flat sur
49、face (see Note 2).NOTE 2Hardness readings for the purpose of approximate determi-nations may be taken from the dumbbell test specimens, recognizing thatthese readings may vary slightly from those taken from the finishedproduct.10.3 Compression SetTest Methods D395, Method B,Specimen Type 1. Oven age specimens for 22 h at 100 6 2C(212 6 3.6F). Where plied test specimens are necessary, thetesting results shall comply with the requirements of Table 1and Table 2.10.4 Tensile StrengthTest Methods D412, Test MethodA,Die C.10.5 Ultimate ElongationTest M
