1、Designation: E 2203 02Standard 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 oforiginal adopti
2、on 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 densethermoplastic elas
3、tomers 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 restra
4、ined 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 measure and describe
5、 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 test may be u
6、sed 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 u
7、ser 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:C 717 Terminology of Building Seals and Sealants2C 864 Specification for Dense Elastomeric CompressionSeal Gas
8、kets, Setting Blocks and Spacers2C 1087 Test Method for Determining Compatibility ofLiquid-Applied Sealants with Accessories Used in Struc-tural Glazing Systems2C 1166 Test Method for Flame Propagation of Dense andCellular Elastomeric Gaskets and Accessories2D 395 Test Methods for Rubber Property-Co
9、mpression Set3D 412 Test Methods for Vulcanized Rubber and Thermo-plastic Rubbers and Thermoplastic Elastomers-Tension3D 573 Test Method for Rubber-Deterioration in an AirOven3D 624 Test Method for Tear Strength of ConventionalVulcanized Rubber and Thermoplastic Elastomers3D 792 Test Methods for Spe
10、cific Gravity (Relative Density)and Density of Plastics by Displacement4D 925 Test Methods for Rubber Property-Staining of Sur-faces (Contact, Migration, and Diffusion)3D 1149 Test Method for Rubber DeteriorationSurfaceOzone Cracking in a Chamber3D 1566 Terminology Relating to Rubber3D 2000 Classifi
11、cation System for Rubber Products in Auto-motive Applications3D 2137 Test Methods for Rubber PropertyBrittlenessPoint of Flexible Polymers and Coated Fabrics3D 2240 Test Method for Rubber PropertyDurometerHardness3D 3182 Practice for Rubber-Materials, Equipment, and Pro-cedures for Mixing Standard C
12、ompounds and PreparingStandard Vulcanized Sheets32.2 Other Documents:Rubber Manufacturers Association (RMA) Standard; Rub-ber Handbook, Fourth ed. December 19845Uniform Freight Classification Rules6National Motor Freight Classification Rules73. Terminology3.1 Refer to Terminology C 717 for definitio
13、ns of thefollowing terms used in this specification: compound, com-pression gasket, edge spacer, elastomer, elastomeric, expansiongasket, gasket, hardness, seal, setting block, shim spacer, andspacer.1This specification is under the jurisdiction of ASTM Committee E06 onPerformance of Buildings and i
14、s the direct responsibility of Subcommittee E06.21on Serviceability.Current edition approved May 10, 2002. Published August 2002.2Annual Book of ASTM Standards, Vol 04.07.3Annual Book of ASTM Standards, Vol 09.01.4Annual Book of ASTM Standards, Vol 08.01.5Available from the Rubber Manufacturers Asso
15、ciation, 1400 K Street, NW,Washington, DC 20005.6Available from the Western Railroad Association, Department of Services andSupply, Room 1150, 222 S. Riverside Plaza, Chicago, IL 60606-5945.7Available from the National Motor Freight Association, 2200 Mill Road,Alexandria, VA 22314.1Copyright ASTM In
16、ternational, 100 Barr Harbor Drive, PO Box C700, West Conshohocken, PA 19428-2959, United States.3.2 Refer to Terminology D 1566 for definitions of thefollowing terms used in this specification: compression set,ultimate elongation, tear strength, tensile strength, and poly-mer.4. Significance and Us
17、e4.1 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 for various applications. It is essentia
18、l,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, hardness, class, and surface.5.2 Type:5
19、.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 aspace (for example, expansion joint gaskets), or where hightear strength is required due to conditions of exposure or usage.5
20、.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 exposure or usage; and as setting blocks,sp
21、acers, 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 propagation characteristics of the fini
22、shed 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-quired (reference Specification C 864,
23、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 agents, dusting agents, and othersol
24、utions 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.5.5.2 Products may also be required to de
25、velop 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 any foreign matter, and shall not al
26、lowadhesion 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 be necessary to meet this requiremen
27、t.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 an illustration of the use of theclas
28、sification 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 glazing shall be ASTMC 1115, CH6S1; compression seal gaskets shall be ASTMC 115, CH7S2; and setting blocks shall be ASTM C 115
29、, 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 extrusion manufactured from a thermoplastic vul-canizate (TPV). This TPV shall be classified under Classifica-tion System D
30、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.6.2 The compound in its final shape shall be flee of visibleinternal porosity, surface defects, and dimensional irregulari-ties
31、 that affect serviceability and 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.TABLE 1 Requirements for Fully Cured Elastomeric Alloy Injec
32、tion 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, % 500 460 380 350 340 340 D 412Hardness, Type A durometer, points (5 s delay)
33、 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 gain, max. %, (24 h at 121C (250F) ASTM No.3 Oil) 60 75
34、 80 90 95 95 D 471E22030227. 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 materialrequirements prescribed in Table 2.7.3 The physical, mechanical, and performance propertiesof the materia
35、l 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 purchaser and the producer orsupplier.8.2 Dimensions can be affected by distortions induced byconditions
36、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.8.3 Tolerance for cross-sectional dimensions of extrudedproducts shall be as de
37、scribed 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 to satisfy a wide variety of applications.These tolerances should be as agree
38、d 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 imperfections are acceptable provided theyare less than 3 mm (0.125 in.) in diameter
39、 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, andTABLE 2 Material Requirements for Finished ProductsPropertyRequirementTest MethodType I Type II Ty
40、pe 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, % 500 460 380 350 340 340 D 412Hardness, Type A durometer, points (5 s delay) 87 6 3806 3736 3706 3676 3646 3 D 2240Ozone resistance 1 ppm 100
41、h at 40C (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 (
42、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) D 624Brittleness temperature, min, C (F) -61 (-78) -62 (-80) -60 (-76) -56 (-69) -62 (-81) -62 (
43、-81) D 746Water 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 d
44、emanded, 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
45、 these circumstances, 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 3Tolerance
46、s on dimensions 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 De
47、signation 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
48、 0.50 (6 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
49、.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)E22030238.6.2.3 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 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 mate
