1、Designation: E2203 14Standard Specification forDense Thermoplastic Elastomers Used for CompressionSeals, Gaskets, Setting Blocks, Spacers and Accessories1This standard is issued under the fixed designation E2203; the number immediately following the designation indicates the year oforiginal adoption
2、 or, in the case of revision, the 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 densethermoplastic elastom
3、ers 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-chanically restraine
4、d 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 C1166, as referenced in this specification,should be used to measure and describe the
5、 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 this test may be used
6、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 theresponsibility of the user
7、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:2C717 Terminology of Building Seals and SealantsC864 Specification for Dense Elastomeric Compression SealGaskets,
8、Setting Blocks, and SpacersC1087 Test Method for Determining Compatibility ofLiquid-Applied Sealants with Accessories Used in Struc-tural Glazing SystemsC1166 Test Method for Flame Propagation of Dense andCellular Elastomeric Gaskets and AccessoriesD395 Test Methods for Rubber PropertyCompression Se
9、tD412 Test Methods for Vulcanized Rubber and Thermoplas-tic ElastomersTensionD471 Test Method for Rubber PropertyEffect of LiquidsD573 Test Method for RubberDeterioration in an AirOvenD624 Test Method for Tear Strength of Conventional Vul-canized Rubber and Thermoplastic ElastomersD746 Test Method f
10、or Brittleness Temperature of Plasticsand Elastomers by ImpactD792 Test Methods for Density and Specific Gravity (Rela-tive Density) of Plastics by DisplacementD865 Test Method for RubberDeterioration by Heating inAir (Test Tube Enclosure)D925 Test Methods for Rubber PropertyStaining of Sur-faces (C
11、ontact, Migration, and Diffusion)D1149 Test Methods for Rubber DeteriorationCracking inan Ozone Controlled EnvironmentD1566 Terminology Relating to RubberD2000 Classification System for Rubber Products in Auto-motive ApplicationsD2137 Test Methods for Rubber PropertyBrittleness Pointof Flexible Poly
12、mers and Coated FabricsD2240 Test Method for Rubber PropertyDurometer Hard-nessD3182 Practice for RubberMaterials, Equipment, and Pro-cedures for Mixing Standard Compounds and PreparingStandard Vulcanized Sheets2.2 Other Documents:Rubber Manufacturers Association (RMA) Standard; Rub-ber Handbook, Fo
13、urth ed. December 19843Uniform Freight Classification Rules41This specification is under the jurisdiction of ASTM Committee C24 onBuilding Seals and Sealants and is the direct responsibility of Subcommittee C24.73on Compression Seal and Lock Strip Gaskets.Current edition approved Feb. 1, 2014. Publi
14、shed March 2014. Originallyapproved in 2002. Last previous edition approved in 2008 as E2203-02(2008). DOI:10.1520/E2203-14.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume information, r
15、efer 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 1150, 222 S. Riverside Plaza, Chicago, IL 60606-5945.Co
16、pyright ASTM International, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959. United States1National Motor Freight Classification Rules53. Terminology3.1 Refer to Terminology C717 for definitions of the fol-lowing terms used in this specification: compound, compres-sion gasket, e
17、dge spacer, elastomer, elastomeric, expansiongasket, gasket, hardness, seal, setting block, shim spacer,standard conditions, and spacer.3.2 Refer to Terminology D1566 for definitions of thefollowing terms used in this specification: compression set,ultimate elongation, tear strength, tensile strengt
18、h, 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),and surfaces (based on surface characteristics) of products aslisted in Section 5 fo
19、r 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. Classification5.1 The products described by this specification are classi-fied by type, h
20、ardness, class, and surface.5.2 Type:5.2.1 Type T, Tear ResistantIn general these products havea higher level of tear resistance. This type is applicable wherefinished products are intended to bridge or to cover a space (forexample, expansion joint gaskets), or where high tear strengthis required du
21、e 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-pression gaskets, or where low compression set is required dueto conditions of expos
22、ure 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 asshown in Tables 1 and 2. For example, Grade H3 is 30durometer.5.4 Class:5.4.1 Flame p
23、ropagation 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 flamepropagation as follows:5.4.1.1 Class FResistance to flame propagation is re-q
24、uired (reference Specification C864, 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 benecessary. During the production of these products the use ofvarious lubricants, release
25、 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 notrequire removal of these materials or removal to the samedegree of cleanliness.5.5.
26、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 follows:5.5.3.1 Surface S1The surface of the product shall besmooth, clean, free from
27、 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 Note 1).NOTE 1Applied treatments, such as dusting or coating to the adhesionsurface may
28、 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 special cleaning for removal of processing agentsand materials.5.6 The following is
29、an illustration of the use of theclassification system for a line call-out. Expansion gasketsshall be ASTM E2203, TH5FS3.5.6.1 Other examples of line call-outs would be: edgespacers for structural thermoplastic glazing shall be ASTME2203, CH6S1; compression seal gaskets shall be ASTME2203, CH7S2; an
30、d setting blocks shall be ASTM E2203,CH9. These examples are not to be construed as a specificationfor these items.5Available from the National Motor Freight Association, 2200 Mill Road,Alexandria, VA 22314.TABLE 1 Requirements for Fully Cured Elastomeric Alloy Injection Molded PlaquesPropertyRequir
31、ementTest 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) D412Elongation at break, min, % 500 460 380 350 340 340 D412Hardness, Type A durometer, points (5 s delay) 87 3 80 3 73 3 70 3 67 3 64 3 D224
32、0Relative Density at 23C (73F) 0.95 0.02 0.96 0.02 0.97 0.02 0.97 0.02 0.97 0.02 0.97 0.02 D792100% Modulus, min, MPa (psi) 6.1 (890) 3.8 (550) 2.8 (400) 2.2 (320) 1.9 (280) 1.9 (280) D412Mass gain, max. %, (24 h at 121C (250F) ASTM No.3Oil)60 75 80 90 95 95 D471E2203 1426. Materials and Manufacture
33、6.1 The products described by this specification shall be apreformed extrusion manufactured from a thermoplastic vul-canizate (TPV). This TPV shall be classified under Classifica-tion System D2000.6.1.1 The pre-compounded TPV shall be manufacturedfrom virgin polymer, that when properly extruded, wil
34、l result inan elastomer that will comply with this specification.6.2 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 compound color shall beblack.
35、 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 shall conform to the materia
36、lrequirements 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 be as agreed upon by the
37、 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 atstandard conditions.8.
38、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, due to the difficulty of establishingmeaningful limits
39、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 free of defects in work-manship.8.6.1 Surface imperfe
40、ctions are acceptable provided theyare less than 3 mm (0.125 in.) in diameter and less than 5 % ofthe depth of the cross-sectional thickness.8.6.2 Defects in the extrusion shall consist of the following:8.6.2.1 Holes greater than 8.6.1,8.6.2.2 Air bubbles greater than 8.6.1, and8.6.2.3 Pans not conf
41、orming to 8.1.9. Sampling9.1 Samples for testing to the requirements of this specifi-cation shall be taken from the finished product whereverpossible. In addition:9.1.1 The TPV injection molded plaques shall be sampledand tested to determine material conformance to Table 1.9.1.2 The finished part sh
42、all also be sampled and tested todetermine whether the part conforms to the material require-ments given in Table 2, tolerances, and design.9.1.3 Alot of material shall consist of the following quantityfor each:9.1.3.1 A specified mass as manufactured by the producer.Sample each lot.9.1.3.2 A cross
43、section as manufactured by the producer.Sample each lot.9.1.4 Obtain samples by one of the following methods:9.1.4.1 Take samples provided by the producer.9.1.4.2 Take samples at random from each shipment.9.1.5 A sample constitutes a minimum as required to per-form the tests but not less than the fo
44、llowing:9.1.5.1 23 kg (50 lb) of the fully cured elastomeric alloy inpellet form.9.1.5.2 2.7 m (9 lf) of each specific size and cross section ofthe finished part.9.2 When the size or shape of the finished product makes itimpossible to obtain the type of samples indicated by thevarious test methods,
45、the manufacturer shall furnish a sufficientnumber of appropriate test slabs, strips or blocks, prepared inTABLE 2 Material Requirements for Finished ProductsPropertyRequirementTest 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)
46、6.0 (870) 5.8 (850) 5.8 (850) D412Elongation at break, min, % 500 460 380 350 340 340 D412Hardness, Type A durometer, points (5 s delay) 87 3 80 3 73 3 70 3 67 3 64 3 D2240Ozone resistance 1 ppm 100 h at 40C (104F) 7 mag No cracks No cracks No cracks No cracks No cracks No cracks D792Compression set
47、, % max. 22 h at 100C (212F) 45 40 38 35 35 35 D412Compression set, % max, 70h at 100C (212F) 50 45 43 40 40 40 D471Heat Aging, 70h at 100C (212F) change in: D865Hardness, Shore A, max, points (5 s delay) 3 3 3 3 3 3Ultimate Tensile Strength max, % loss 5 5 5 5 5 5Ultimate Elongation max, % loss 5 5
48、 5 5 5 5Tear resistance, min, N/mm (lb/in.) 45 (257) 30 (171) 20 (114) 20 (114) 20 (114) 20 (114) D624Brittleness temperature, min, C (F) -61 (-78) -62 (-80) -60 (-76) -56 (-69) -62 (-81) -62 (-81) D746Water absorption, max, % loss/gain 5 5 6 6 7 7 D471E2203 143accordance with Practice D3182. The sl
49、abs, strips, or blocksshall be prepared from the same compound and shall be of acomparable state of cure as the finished product.10. Specimen Preparation10.1 Maintain laboratory temperature and humidity at stan-dard conditions.10.2 Maintain laboratory at a relative humidity of 50 % 65%.10.3 Test Plaque Specimens:10.3.1 Use equipment per Annex A1.10.3.2 Produce 20 quality assurance test plaques in accor-dance with Annex A2.10.4 Finished Product Specimens:10.4.1 Cut all test specimens from the finished productsample.
