1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions 2003 12 15 Activated B HennesseyPrinted copies are uncontrolled Copyright 2003, Ford Global Technologies, Inc. Page 1 of 4 THERMOPLASTIC ELASTOMER, STYRENE POLYOLEFIN BLOCK WSS-M2D505-A2 COPOLYMER (TES), 60 DUROMETER A HARDNESS, EXTERIOR APPLI
2、CATIONS 1. SCOPE The materials defined by this specification are U.V. stabilized thermoplastic styrene-ethylene/butylene-styrene copolymer elastomers. The materials can be processed by conventional thermoplastic molding techniques such as injection and/or extrusion molding. 2. APPLICATION The specif
3、ications were released originally for material used for window encapsulation seals, windshield trim seals, exteriors trim seals and cowl vent grille seals. 3. REQUIREMENTS 3.1 STANDARD REQUIREMENTS FOR PRODUCTION MATERIALS Material suppliers and part producers must conform to the Companys Standard R
4、equirements For Production Materials (WSS-M99P1111-A). 3.2 DYNAMIC MECHANICAL ANALYSIS (ASTM D 4065) Ford Motor Company, at its option, may establish shear modulus/damping vs. temperature curves plotted for - 50 to + 170 C temperature range for material/parts supplied to this specification. The shea
5、r modulus and damping curves established for initial approval shall constitute the reference standard and shall be kept on file at the designated material laboratory. All samples shall produce shear modulus and damping curves that correspond to the reference standard when tested under the same condi
6、tions. 3.3 MATERIAL TESTING 3.3.1 Preparation of Test Specimens Whenever possible, all test specimens shall be die-cut from the finished parts. When not feasible, specimens cut from molded test sheets manufactured from the same material and with equivalent cure to the molded parts are recommended. T
7、he test sheets shall have the following dimensions: 50 x 150 mm, min x 2.0 +/- 0.2 mm ENGINEERING MATERIAL SPECIFICATIONWSS-M2D505-A2Printed copies are uncontrolled Copyright 2003, Ford Global Technologies, Inc. Page 2 of 4 3.4 ORIGINAL PROPERTIES 3.4.1 Density, +/- 0.05 g/cm31.18 (ISO 1183, Method
8、A) 3.4.2 Hardness, Durometer A 60+/-5 (ISO 868, 15 second dwell) 3.4.3 Tensile Strength, MPa, min (ISO 37, type 1/500 mm/min) I. Parallel to Flow 2.1 II. Perpendicular to Flow 3.4 3.4.3.1 Elongation at Break, %, min (Test method according to para 3.4.3) I. Parallel to Flow 200 II. Perpendicular to F
9、low 500 3.4.3.2 Modulus at 100% Elongation, MPa, min (Test method according to para 3.4.3) I. Parallel to Flow 1.8 II. Perpendicular to Flow 0.9 3.4.4 Tear Strength, kN/m, min (ISO 34, specimen angular type) 3.4.4.1 Parallel to Flow 14 3.4.4.2 Perpendicular to Flow 18 3.4.5 Brittleness Point, max -
10、40 C (ISO 812, Type B specimen/ ASTM D 2137, Method A) 3.4.6 Ozone Resistance, max 0 Rating (FLTM BP 101-01, Procedure A) 3.4.7 Compression Set, %, max 45 (ISO 815, 22 h at 70 +/- 2 C) ENGINEERING MATERIAL SPECIFICATIONWSS-M2D505-A2Printed copies are uncontrolled Copyright 2003, Ford Global Technolo
11、gies, Inc. Page 3 of 4 3.4.8 Compression Set, %, max 70 (ISO 815, 22 h at 100 +/- 2 C) 3.4.9 Migration Staining Rating 4, minimum (FLTM BN 103-01, ISO 105-A02/ AATCC Evaluation Procedure 2) 3.5 HEAT AGING (ISO 188, 150 +/- 50 air change/h, 1000 h at 125 +/- 2 C) 3.5.1 Hardness Change, +/- 5 3.5.2 Te
12、nsile Strength Change, max + 20% 3.5.3 Elongation Change, max + 20% 3.5.4 Visual Evaluation No surface tackiness or cracks when folded flat against self. 3.6 FLAMMABILITY (ISO 3795/FMVSS 302) Burn Rate, max 100 mm/minute 3.7 WEATHERING RESISTANCE After exposure in accordance with 3.7.1, 3.7.2 and 3.
13、7.3 the material shall show no color change in excess of specified Gray Scale rating (AATCC Evaluation Procedure 1/ ISO 105-A02). In addition, there shall be no cracking, crazing or other deterioration. A slight loss of gloss or chalking will be allowed provided an acceptable appearance can be achie
14、ved by washing and/or polishing with Ford car polish (auto wax) after the outdoor exposure, by permission of the affected Product Development Materials Activity. All initial approval will be based on the preliminary Weatherometer exposure, pending Florida and Arizona exposure results for final appro
15、val. 3.7.1 Xenon Arc Weatherometer Exterior Rating 4 (SAE J1960, 2500 kJ/m2exposure minimum, specimen size: 60 x 60 minimum x 2.0 +/- 0.1 mm thick, smooth surface, low gloss injection molded specimen) ENGINEERING MATERIAL SPECIFICATIONWSS-M2D505-A2Printed copies are uncontrolled Copyright 2003, Ford
16、 Global Technologies, Inc. Page 4 of 4 3.7.2 Weathering Rating 4 12 months Florida 12 months Arizona Exterior (SAE J1976, 5 south, direct weathering inland, specimen size: 60 x 60 minimum x 2.0 +/- 0.1 mm thick, smooth surface, low gloss injection molded specimen) 3.7.3 Weathering Rating 3-4 24 mont
17、hs Florida 24 months Arizona Exterior (SAE J1976, 5 south, direct weathering inland, specimen size: 60 x 60 minimum x 2.0 +/- 0.1 mm thick, smooth surface, low gloss injection molded specimen) 4. GENERAL INFORMATION The information given below is provided for clarification and assistance in meeting the requirements of this specification. 4.1 RECYCLING CODE TES
