1、Designation: E 2203 02 (Reapproved 2008)Standard Specification forDense Thermoplastic Elastomers Used for CompressionSeals, Gaskets, Setting Blocks, Spacers and Accessories1This standard is issued under the fixed designation E 2203; the number immediately following the designation indicates the year
2、 oforiginal adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. Asuperscript epsilon (e) indicates an editorial change since the last revision or reapproval.1. Scope1.1 This specification describes products composed of dense
3、thermoplastic elastomers that are fabricated into gaskets andaccessories (such as compression seals, setting blocks, spacers,and shims) for use in sealing and glazing applications inbuilding construction. These products are used to seal or serveas components of compression sealing systems between me
4、-chanically restrained surfaces in building construction.1.2 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.1.3 Test Method C 1166, as referenced in this specification,should be used to me
5、asure and describe the properties ofmaterials, products, or assemblies 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
6、this test may be used as elements of a fire riskassessment that takes into account all of the factors which arepertinent to an assessment of the fire hazard of a particular enduse.1.4 This standard does not purport to address all of thesafety concerns, if any, associated with its use. It is therespo
7、nsibility 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:2C 717 Terminology of Building Seals and SealantsC 864 Specification for Dense Elastomeric C
8、ompressionSeal Gaskets, Setting Blocks, and SpacersC 1087 Test Method for Determining Compatibility ofLiquid-Applied Sealants with Accessories Used in Struc-tural Glazing SystemsC 1166 Test Method for Flame Propagation of Dense andCellular Elastomeric Gaskets and AccessoriesD 395 Test Methods for Ru
9、bber PropertyCompressionSetD 412 Test Methods for Vulcanized Rubber and Thermo-plastic ElastomersTensionD 471 Test Method for Rubber PropertyEffect of LiquidsD 573 Test Method for RubberDeterioration in an AirOvenD 624 Test Method for Tear Strength of ConventionalVulcanized Rubber and Thermoplastic
10、ElastomersD 746 Test Method for Brittleness Temperature of Plasticsand Elastomers by ImpactD 792 Test Methods for Density and Specific Gravity (Rela-tive Density) of Plastics by DisplacementD 865 Test Method for RubberDeterioration by Heatingin Air (Test Tube Enclosure)D 925 Test Methods for Rubber
11、PropertyStaining of Sur-faces (Contact, Migration, and Diffusion)D 1149 Test Methods for Rubber DeteriorationCrackingin an Ozone Controlled EnvironmentD 1566 Terminology Relating to RubberD 2000 Classification System for Rubber Products in Auto-motive ApplicationsD 2137 Test Methods for Rubber Prope
12、rtyBrittlenessPoint of Flexible Polymers and Coated FabricsD 2240 Test Method for Rubber PropertyDurometerHardnessD 3182 Practice for RubberMaterials, Equipment, andProcedures for Mixing Standard Compounds and Prepar-ing Standard Vulcanized Sheets2.2 Other Documents:Rubber Manufacturers Association
13、(RMA) Standard; Rub-ber Handbook, Fourth ed. December 19843Uniform Freight Classification Rules4National Motor Freight Classification Rules51This specification is under the jurisdiction of ASTM Committee C24 onBuilding Seals and Sealants and is the direct responsibility of Subcommittee C24.73on Comp
14、ression Seal and Lock Strip Gaskets.Current edition approved March 15, 2008. Published April 2008. Originallyapproved in 2002. Last previous edition approved in 2002 as E 2203-02.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org.
15、 For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.3Available from the Rubber Manufacturers Association, 1400 K Street, NW,Washington, DC 20005.4Available from the Western Railroad Association, Department of Services andSupply, Room
16、1150, 222 S. Riverside Plaza, Chicago, IL 60606-5945.5Available from the National Motor Freight Association, 2200 Mill Road,Alexandria, VA 22314.1Copyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.3. Terminology3.1 Refer to Terminology C
17、 717 for definitions of thefollowing terms used in this specification: compound, com-pression gasket, edge spacer, elastomer, elastomeric, expansiongasket, gasket, hardness, seal, setting block, shim spacer, andspacer.3.2 Refer to Terminology D 1566 for definitions of thefollowing terms used in this
18、 specification: compression set,ultimate elongation, tear strength, tensile strength, and poly-mer.4. Significance and Use4.1 This specification describes types (based on resistanceto tearing and compression set), grades (based on durometerhardness), class (based on flame propagation requirements),a
19、nd surfaces (based on surface characteristics) of products aslisted in Section 5 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.5. Classi
20、fication5.1 The products described by this specification are classi-fied by type, hardness, class, and surface.5.2 Type:5.2.1 Type T, Tear ResistantIn general these productshave a higher level of tear resistance. This type is applicablewhere finished products are intended to bridge or to cover aspac
21、e (for example, expansion joint gaskets), or where hightear strength is required due to conditions of exposure or usage.5.2.2 Type C, Compression Set ResistantIn general, theseproducts have a higher level of compression set resistance. Thistype is applicable where finished products are used as com-p
22、ression gaskets, or where low compression set is required dueto conditions of exposure or usage; and as setting blocks,spacers, shims, or other accessories in glazing and sealingsystems.5.3 GradeEach type described in 5.2 is subdivided intovarious hardnesses, based on nominal durometer hardness assh
23、own in Tables 1 and 2. For example, Grade H3 is 30durometer.5.4 Class:5.4.1 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
24、 flamepropagation as follows:5.4.1.1 Class FResistance to flame propagation is re-quired (reference Specification C 864, 4.1, Table 1).5.4.1.2 Class designation is not needed when flame propa-gation resistance is not required.5.5 Surface:5.5.1 Consideration of product surface requirements may benece
25、ssary. During the production of these products the use ofvarious lubricants, release agents, dusting agents, and othersolutions may be required. It may be necessary to remove thesematerials from the surfaces of the product because of appear-ance fabrication, or usage requirements. All products do no
26、trequire removal of these materials or removal to the samedegree of cleanliness.5.5.2 Products may also be required to develop adhesion orto not develop adhesion to sealants with which they are incontact.5.5.3 Products described by this specification shall be clas-sified as to surface condition as f
27、ollows:5.5.3.1 Surface S1The surface of the product shall besmooth, clean, free from any foreign matter, and shall not allowadhesion of sealants (see Note 1).5.5.3.2 Surface S2The surface of the product shall besmooth, clean, free from any foreign matter, and shall allowadhesion of sealants (see Not
28、e 1).NOTE 1Applied treatments, such as dusting or coating to the adhesionsurface may be necessary to meet this requirement.5.5.3.3 Surface S3The product shall have a surface that issmooth, clean, and free from any foreign matter.5.5.4 Surface designation code is not needed for productsnot requiring
29、special cleaning for removal of processing agentsand materials.5.6 The following is an illustration of the use of theclassification system for a line call-out. Expansion gasketsshall be ASTM C 115, TH5FS3.5.6.1 Other examples of line call-outs would be: edgespacers for structural thermoplastic glazi
30、ng shall be ASTMC 1115, CH6S1; compression seal gaskets shall be ASTMC 115, CH7S2; and setting blocks shall be ASTM C 115, CH9.These examples are not to be construed as a specification forthese items.6. Materials and Manufacture6.1 The products described by this specification shall be apreformed ext
31、rusion manufactured from a thermoplastic vul-canizate (TPV). This TPV shall be classified under Classifica-tion System D 2000.6.1.1 The pre-compounded TPV shall be manufacturedfrom virgin polymer, that when properly extruded, will result inan elastomer that will comply with this specification.TABLE
32、1 Requirements for Fully Cured Elastomeric Alloy Injection Molded PlaquesPropertyRequirementTest MethodType I Type II Type III Type IV Type V Type VITensile strength, min, MPa (psi) 13.8 (2000) 9.7 (1400) 7.2 (1050) 6.0 (870) 5.8 (850) 5.8 (850) D 412Elongation at break, min, % 500 460 380 350 340 3
33、40 D 412Hardness, Type A durometer, points (5 s delay) 87 6 3806 3736 3706 3676 3646 3 D 2240Relative Density at 23C (73F) 0.95 6 0.02 0.96 6 0.02 0.97 6 0.02 0.97 6 0.02 0.97 6 0.02 0.97 6 0.02 D 792100% Modulus, min, MPa (psi) 6.1 (890) 3.8 (550) 2.8 (400) 2.2 (320) 1.9 (280) 1.9 (280) D 412Mass g
34、ain, max. %, (24 h at 121C (250F) ASTM No.3 Oil) 60 75 80 90 95 95 D 471E 2203 02 (2008)26.2 The compound in its final shape shall be flee of visibleinternal porosity, surface defects, and dimensional irregulari-ties that affect serviceability and durability.6.3 Unless otherwise specified, the compo
35、und color shall beblack. If colors other than black are specified, the compound inthe color specified shall also meet the requirements of thisspecification.7. Requirements7.1 The TPV supplied in plaque form shall conform to thematerial requirements prescribed in Table 1.7.2 The finished product shal
36、l conform to the materialrequirements prescribed in Table 2.7.3 The physical, mechanical, and performance propertiesof the material shall conform to the requirements as describedby Tables 1 and 2.8. Dimensions and Permissible Variations8.1 The size, shape, and internal structure of the productshall
37、be as agreed upon by the purchaser and the producer orsupplier.8.2 Dimensions can be affected 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
38、at 236 2C (73 6 4F) and 50 6 5 % relative humidity.8.3 Tolerance for cross-sectional dimensions of extrudedproducts shall be as described by Table 3 unless otherwiseagreed upon between the purchaser and the supplier.8.4 Tolerances for squareness and flatness are not includedin this specification, du
39、e to the difficulty of establishingmeaningful limits to satisfy a wide variety of applications.These tolerances should be as agreed upon between thesupplier and purchaser.8.5 The color of the seal shall be as agreed upon by thepurchaser and the producer or supplier.8.6 The finished product shall be
40、free of defects in work-manship.8.6.1 Surface imperfections are acceptable provided theyare less than 3 mm (0.125 in.) in diameter and less than 5 % ofthe depth of the cross-sectional thickness.TABLE 2 Material Requirements for Finished ProductsPropertyRequirementTest MethodType I Type II Type III T
41、ype IV Type V Type VITensile strength, min, MPa (psi) 13.8 (2000) 9.7 (1400) 7.2 (1050) 6.0 (870) 5.8 (850) 5.8 (850) D 412Elongation at break, min, % 500 460 380 350 340 340 D 412Hardness, Type A durometer, points (5 s delay) 87 6 3806 3736 3706 3676 3646 3 D 2240Ozone resistance 1 ppm 100 h at 40C
42、 (104F) 73 mag No cracks No cracks No cracks No cracks No cracks No cracks D 792Compression set, % max. 22 h at 100C (212F) 45 40 38 35 35 35 D 412Compression set, % max, 70h at 100C (212F) 50 45 43 40 40 40 D 471Heat Aging, 70h at 100C (212F) change in: D 865Hardness, Shore A, max, points (5 s dela
43、y) 3 3 3 3 3 3Ultimate Tensile Strength max, % loss 5 5 5 5 5 5Ultimate Elongation max, % loss 5 5 5 5 5 5Tear resistance, min, N/mm (lb/in.) 45 (257) 30 (171) 20 (114) 20 (114) 20 (114) 20 (114) D 624Brittleness temperature, min, C (F) -61 (-78) -62 (-80) -60 (-76) -56 (-69) -62 (-81) -62 (-81) D 7
44、46Water absorption, max, % loss/gain 5 5 6 6 7 7 D 471TABLE 3 Standards for Cross Sectional ToleranceNOTE 1The closer tolerance classes outlined below should not be specified unless required by the final application and they should be restricted tocritical dimensions. The closer tolerances demanded,
45、 the tighter the control which must be exercised during manufacture and hence higher costs.NOTE 2When particular physical properties are required in the product, it is not always possible to provide them in a combination which is capableof fabrication to close tolerances. It is necessary, in these c
46、ircumstances, that consultation take place between the customer and supplier. In general, softermaterials need greater tolerances than harder ones. Where close tolerances are required, a specific technique of measurement should be agreed uponbetween purchaser and manufacturer.NOTE 3Tolerances on dim
47、ensions above 100 mm (3.94 in.) should be agreed on by supplier and user. General cross sectional dimensions below 1mm (0.04 in.) are impractical.NOTE 4In general, softer materials and those requiring a post cure need greater tolerances.RMA Class1High Precision2Precision3CommercialDrawing Designatio
48、n E1 E2 E3Dimensions, mm (in.)Above Up to0 (0) 1.5 (0.06) 6 0.15 (6 0.006) 6 0.25 (6 0.010) 6 0.40 (6 0.015)1.5 (0.06) 2.5 (0.10) 6 0.20 (6 0.008) 6 0.35 (6 0.014) 6 0.50 (6 0.020)2.5 (0.10) 4.0 (0.16) 6 0.25 (6 0.010) 6 0.40 (6 0.016) 6 0.70 (6 0.027)4.0 (0.16) 6.3 (0.25) 6 0.35 (6 0.014) 6 0.50 (6
49、 0.020) 6 0.80 (6 0.031)6.3 (0.25) 10 (0.39) 6 0.40 (6 0.016) 6 0.70 (6 0.027) 6 1.00 (6 0.039)10 (0.39) 16 (0.63) 6 0.50 (6 0.020) 6 0.80 (6 0.031) 6 1.30 (6 0.051)16 (0.63) 25 (0.98) 6 0.70 (6 0.027) 6 1.00 (6 0.039) 6 1.60 (6 0.063)25 (0.98) 40 (1.57) 6 0.80 (6 0.031) 6 1.30 (6 0.051) 6 2.00 (6 0.079)40 (1.57) 63 (2.48) 6 1.00 (6 0.039) 6 1.60 (6 0.063) 6 2.50 (6 0.098)63 (2.48) 100 (3.94) 6 1.30 (6 0.051) 6 2.00 (6 0.079) 6 3.20 (6 0.126)E 2203 02 (2008)38.6.2 Defects in the extrusion shall consist of the following:8.6.2.1 Holes greater than
