1、Designation: E2203 14 (Reapproved 2018)Standard 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 o
2、foriginal adoption 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 densethe
3、rmoplastic 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-ch
4、anically 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 C1166, as referenced in this specification,should be used to measur
5、e 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 this
6、 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 theresponsib
7、ility of the user of this standard to establish appro-priate safety, health, and environmental practices and deter-mine the applicability of regulatory limitations prior to use.1.5 This international standard was developed in accor-dance with internationally recognized principles on standard-ization
8、 established in the Decision on Principles for theDevelopment of International Standards, Guides and Recom-mendations issued by the World Trade Organization TechnicalBarriers to Trade (TBT) Committee.2. Referenced Documents2.1 ASTM Standards:2C717 Terminology of Building Seals and SealantsC864 Speci
9、fication for Dense Elastomeric Compression SealGaskets, 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 Access
10、oriesD395 Test Methods for Rubber PropertyCompression SetD412 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-caniz
11、ed Rubber and Thermoplastic ElastomersD746 Test Method for 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
12、Test Methods for Rubber PropertyStaining of Sur-faces (Contact, 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 Meth
13、ods for Rubber PropertyBrittleness Pointof Flexible Polymers and Coated FabricsD2240 Test Method for Rubber PropertyDurometer Hard-nessD3182 Practice for RubberMaterials, Equipment, and Pro-cedures for Mixing Standard Compounds and Preparing1This specification is under the jurisdiction of ASTM Commi
14、ttee C24 onBuilding Seals and Sealants and is the direct responsibility of Subcommittee C24.73on Compression Seal and Lock Strip Gaskets.Current edition approved Aug. 1, 2018. Published August 2018. Originallyapproved in 2002. Last previous edition approved in 2014 as E2203-14. DOI:10.1520/E2203-14R
15、18.2For referenced ASTM standards, visit the ASTM website, www.astm.org, orcontact ASTM Customer Service at serviceastm.org. For Annual Book of ASTMStandards volume information, refer to the standards Document Summary page onthe ASTM website.Copyright ASTM International, 100 Barr Harbor Drive, PO Bo
16、x C700, West Conshohocken, PA 19428-2959. United StatesThis international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for theDevelopment of International Standards, Guides and Recommendations issued by t
17、he World Trade Organization Technical Barriers to Trade (TBT) Committee.1Standard Vulcanized Sheets2.2 Other Documents:Rubber Manufacturers Association (RMA) Standard; Rub-ber Handbook, Fourth ed. December 19843Uniform Freight Classification Rules4National Motor Freight Classification Rules53. Termi
18、nology3.1 Refer to Terminology C717 for definitions of the fol-lowing terms used in this specification: compound, compres-sion gasket, edge spacer, elastomer, elastomeric, expansiongasket, gasket, hardness, seal, setting block, shim spacer,standard conditions, and spacer.3.2 Refer to Terminology D15
19、66 for definitions of thefollowing terms used in this 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 durometerhardnes
20、s), class (based on flame propagation requirements),and 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 pro
21、perproduct is provided for the intended use.5. Classification5.1 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 products havea higher level of tear resistance. This type is applicable wherefinis
22、hed products 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.5.2.2 Type C, Compression Set ResistantIn general, theseproducts have a higher level of compression set resistance. Thistype is
23、 applicable where finished products are used as com-pression 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
24、 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 propagation characteristics of the finished prod-ucts can be varied depending on the degree of exposure,expected usage, and intended durability desired. Productsdesc
25、ribed by this specification shall be classified as to flamepropagation as follows:5.4.1.1 Class FResistance to flame propagation is re-quired (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 Cons
26、ideration of product surface requirements may benecessary. 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 fa
27、brication, or usage requirements. All products do notrequire 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 specificati
28、on 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 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
29、matter, and shall allowadhesion of sealants (see Note 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 desig
30、nation code is not needed for productsnot requiring special cleaning for removal of processing agentsand materials.3Available from the Rubber Manufacturers Association, 1400 K Street, NW,Washington, DC 20005.4Available from the Western Railroad Association, Department of Services andSupply, Room 115
31、0, 222 S. Riverside Plaza, Chicago, IL 60606-5945.5Available from the National Motor Freight Association, 2200 Mill Road,Alexandria, VA 22314.TABLE 1 Requirements for Fully Cured Elastomeric Alloy Injection Molded PlaquesPropertyRequirementTest MethodType I Type II Type III Type IV Type V Type VITen
32、sile 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 D2240Relative Density at 23C (73F) 0.95 0.02 0.96 0.02 0.97 0.02 0.97
33、 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 14 (2018)25.6 The following is an illustration of the use of theclassification system for a line
34、 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; and setting blocks shall be ASTM E2203,CH9. These examples are not
35、to be construed as a specificationfor these items.6. Materials and Manufacture6.1 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
36、TPV shall be manufacturedfrom virgin polymer, that when properly extruded, will result inan elastomer that will comply with this specification.6.2 The compound in its final shape shall be free of visibleinternal porosity, surface defects, and dimensional irregulari-ties that affect serviceability an
37、d durability.6.3 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.7. Requirements7.1 The TPV supplied in plaque form shall conform to thematerial requiremen
38、ts prescribed in Table 1.7.2 The finished product shall 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 si
39、ze, shape, and internal structure of the productshall 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 beunp
40、acked and conditioned in an unstressed state for 24 h atstandard conditions.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 included
41、in this specification, due 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 f
42、inished product shall be 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.8.6.2 Defects in the extrusion shall consist of the following:8.6.2.1 Holes great
43、er than 8.6.1,8.6.2.2 Air bubbles greater than 8.6.1, and8.6.2.3 Pans not conforming 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
44、tested to determine material conformance to Table 1.9.1.2 The finished part shall 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 s
45、pecified mass as manufactured by the producer.Sample each lot.9.1.3.2 A cross 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.TABLE 2 Material
46、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) 6.0 (870) 5.8 (850) 5.8 (850) D412Elongation at break, min, % 500 460 380 350 340 340 D412Hardness, Type A durometer, point
47、s (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, % 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 Ag
48、ing, 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 5 5 5 5Tear resistance, min, N/mm (lb/in.) 45 (257) 30 (171) 20 (114) 20 (114) 20 (114) 20 (114) D624Brittleness temperatu
49、re, 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 14 (2018)39.1.5 A sample constitutes a minimum as required to per-form the tests but not less than the following: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 thev
