1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions 2007 08 14 N-STATUS Replaced by WSS-M9P9-A K. Mueller 2004 09 21 Revised Para 3.0 inserted; para 3.1, 3.2, 3.3, 3.9 & 4 deleted 1992 12 17 Released C10241480 B Hennessey Printed copies are uncontrolled Copyright 2007, Ford Global Technologies,
2、 LLC Page 1 of 3 RUBBER, ETHYLENE/PROPYLENE (EPDM), SOLID WSD-M2D405-A1 WEATHERSTRIPS, HARDNESS 60 IRHD RUBBER, ETHYLENE/PROPYLENE (EPDM), SOLID WSD-M2D405-A2 WEATHERSTRIPS, HARDNESS 70 IRHD RUBBER, ETHYLENE/PROPYLENE (EPDM), SOLID WSD-M2D405-A3 WEATHERSTRIPS, HARDNESS 80 IRHD RUBBER, ETHYLENE/PROPY
3、LENE (EPDM), SOLID WSD-M2D405-A4 WEATHERSTRIPS, HARDNESS 90 IRHD NOT TO BE USED FOR NEW DESIGN 1. SCOPE The materials defined by these specifications are ethylene/propylene (EPDM) rubbers with excellent visual and environmental resistance properties. 2. APPLICATION These specifications were released
4、 originally for material used for windshield and backlight rubber weatherstrips and/or as specified on Engineering Drawings. In addition to the following requirements all parts made from this material must conform to the performance requirements of WSD-M9P8-A. 3. REQUIREMENTS Material specification
5、requirements are to be used for initial qualification of materials. 3.0 STANDARD REQUIREMENTS FOR PRODUCTION MATERIALS Material suppliers and part producers must conform to the Companys Standard Requirements For Production Materials (WSS-M99P1111-A). 3.4 MATERIAL TESTING The following tests shall be
6、 performed on finished parts and/or test specimens cut from them. The test specimens shall be die-cut from the finished parts and buffed or slit to the required thickness where necessary. When not feasible, specimens cut from molded test slabs manufactured from the same material with an equivalent s
7、tate of cure shall be used. The test slabs shall have the following dimensions: 150 x 150 mm, min x 2.0 +/- 0.2 mm ENGINEERING MATERIAL SPECIFICATIONWSD-M2D405-A1/A2/A3/A4Printed copies are uncontrolled Copyright 2007, Ford Global Technologies, LLC Page 2 of 3 3.5 ORIGINAL PROPERTIES A1 A2 A3 A4 3.5
8、1 Hardness, International 55-65 65-75 75-85 85-95 (ASTM D 1415) 3.5.2 Tensile Strength, MPa, min 6.0 6.0 6.0 7.0 (ISO 37/ASTM D 412, Die C) 3.5.3 Elongation at Break, %, min 250 225 150 120 (Test Method according to 3.5.2) 3.5.4 Modulus at 100% 1.5 2.0 3.5 5.0 Elongation, Mpa -4.5 -5.0 -7.0 -8.5 (T
9、est Method according to 3.5.2) 3.5.5 Tear Resistance, min (A1 - A4) 18 kN/m (ISO 34, Method B, procedure (a)/ ASTM D 624, Die C) 3.5.6 Rebound Resilience, min (A1 - A4) 25% (ISO 4662) 3.5.7 Compression Set, max (A1 - A4) 35% (ISO 815/ASTM D 395, Method B, 22 h at 70 +/- 2 C) 3.5.8 Brittleness Point,
10、 max (A1 - A4) -40 C (ISO 812, Type B specimen/ ASTM D 2137, Method A) 3.6 HEAT AGED (ISO 188/ASTM D 573, 150 +/- 50 air changes/h, 1,000 h at 70 +/- 2 C) 3.6.1 Hardness, Change, max +15 3.6.2 Tensile Strength Change, max -20% 3.6.3 Elongation at Break Change, max -60% 3.6.4 Visual Evaluation No sur
11、face tackiness or cracks when folded flat against itself. ENGINEERING MATERIAL SPECIFICATIONWSD-M2D405-A1/A2/A3/A4Printed copies are uncontrolled Copyright 2007, Ford Global Technologies, LLC Page 3 of 3 3.7 HEAT AGED (ISO 188/ASTM D 573, 150 +/- 50 air changes/h, 168 h at 100 +/- 2 C) 3.7.1 Hardnes
12、s, Change, max +10 3.7.2 Tensile Strength Change, max -20% 3.7.3 Elongation at Break Change, max -60% 3.7.4 Visual Evaluation No surface tackiness or cracks when folded flat against itself. 3.8 FINISHED PART REQUIREMENTS 3.8.1 The finished part must conform to performance specification WSD-M9P8-A (Interior and Exterior requirements or as specified on the Engineering Drawing).
