1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions 2010 05 19 A2 N-STATUS A2 replaced by WSS-M9P10-A G. Eaton, NA 2007 08 14 A1 N-STATUS A1 replaced by WSS-M9P9-A K. Mueller 1988 10 14 Final Release B. Hennessey Printed copies are uncontrolled Copyright 2010, Ford Global Technologies, LLC Page
2、 1 of 4 WEATHERSTRIP, ETHYLENE/PROPYLENE WSD-M96D21-A1 (EPDM) RUBBER, THERMOPLASTIC NOT TO BE USED FOR NEW DESIGN POLYOLEFIN (TPO) CO-EXTRUDED SLIDING-COAT WETHERSTRIP, ETHYLENE/PROPYLENE (EPDM) RUBBER, WSD-M96D21-A2 SHORT FIBER FLOCK COATED NOT TO BE USED FOR NEW DESIGN 1. SCOPE The materials defin
3、ed by these specifications are EPDM rubber extrusions with either a co-extruded, low friction, thermoplastic polyolefin sliding- coat (WSD-M96D21-A1) or adhesively bonded, short fiber flock (WSD-M96D21-A2) applied to surfaces as shown on the engineering drawing. The weatherstrips may contain an inte
4、rnal metal carrier. 2. APPLICATION These specifications were released originally for materials to be used as door belt seal weatherstrips. In addition to the following requirements all parts made from these materials must conform to requirements of WSD-M9P8-A. 3. REQUIREMENTS 3.0 STANDARD REQUIREMEN
5、TS FOR PRODUCTION MATERIALS Material suppliers and part producers must conform to the Companys Standard Requirements For Production Materials (WSS-M99P1111-A). 3.3 DYNAMIC MECHANICAL ANALYSIS (ASTM D 4065) Ford Motor Company, at its option, may establish a shear modulus/ damping vs. temperature curv
6、es plotted for -50 to +150 C temperature range for material/parts supplied to this specification. The shear 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 s
7、hear modulus and damping curves that correspond to the reference standard when tested under the same conditions. ENGINEERING MATERIAL SPECIFICATIONWSD-M96D21-A1/A2Printed copies are uncontrolled Copyright 2010, Ford Global Technologies, LLC Page 2 of 4 3.5 MATERIAL TESTING - EPDM RUBBER 3.5.1 Prepar
8、ation 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 molded parts are recommended. The test sheets shall have the following dime
9、nsions: 150 x 150 mm, min x 2.0 +/- 0.2 mm 3.5.2 Hardness, International 65 - 75 IRHD (ASTM D 1415) 3.5.3 Hardness, Durometer A 65 - 75 (ASTM D 2240, instantaneous, plied-up specimen) 3.5.4 Tensile Strength, min 12 MPa (ASTM D 412, Die C) 3.5.5 Elongation at Break, min 300% (Test according to para 3
10、5.4) 3.5.6 Modulus at 100% Elongation 3.0 - 5.0 MPa (Test according to para 3.5.4) 3.5.7 Tear Strength, min 25 kN/m (ASTM D 624, Die C) 3.5.8 Heat Aged (ASTM D 573, 1000 h at 100 +/- 2 C) Hardness Change, max +12 Tensile Strength Change, max +20% Elongation Change, max -50% Modulus at 100% Elongati
11、on 6.0 - 8.5 MPa 3.5.9 Compression Set, max (ASTM D 395, Method B, Type 1-plied specimen) 3.5.9.1 22 h at 100 +/- 2 C 60% 3.5.9.2 1000 h at 100 +/- 2 C 90% ENGINEERING MATERIAL SPECIFICATIONWSD-M96D21-A1/A2Printed copies are uncontrolled Copyright 2010, Ford Global Technologies, LLC Page 3 of 4 3.5.
12、10 Ozone Resistance, max Rating 0 (FLTM BP 101-01, except test specimen at 100% elongation) 3.5.11 Brittleness Point, max -40 C (ASTM D 2137, Method A) 3.6 MATERIAL TESTING - TPO SLIDING-COAT (WSD-M96D21-A1 only) 3.6.1 Composition The sliding-coat shall be a thermoplastic polyolefin material of a ty
13、pe capable of meeting the requirements specified in the relevant Engineering Specification or on the engineering drawing. 3.6.2 Adhesion of Sliding-coat to Rubber The sliding-coat shall not be capable of being peeled from the rubber without cohesive tearing of the rubber or TPO. 3.7 MATERIAL TESTING
14、 - FLOCK (WSD-M96D21-A2 only) 3.7.1 Composition The flock shall consist of a suitable short fiber thermoplastic material of a type capable of meeting the requirements specified in the relevant Engineering Specification or on the engineering drawing. 3.7.2 Adhesion of Flock-coat to Rubber Test method
15、 to be agreed between the relevant Ford Materials Engineering department and the vendor. (See 5.1) Adhesion shall be tested on the original material and after the Weathering Tests 3.8.1 of WSD-M9P8-A. 3.8 MATERIAL TESTING - METAL CARRIER The metal carrier shall be as specified on the engineering dra
16、wing. 3.9 FLAMMABILITY (ISO 3795) Burn Rate, max 100 mm/min ENGINEERING MATERIAL SPECIFICATIONWSD-M96D21-A1/A2Printed copies are uncontrolled Copyright 2010, Ford Global Technologies, LLC Page 4 of 4 5. GENERAL INFORMATION The information given below is provided for clarification and assistance in m
17、eeting the requirements of these specifications. 5.1 For further information contact: Materials Laboratory 15/GM-DO1-D Body & Chassis Engineering Research and Engineering Center Body Eng. Materials Laboratory Ford Motor Company Ltd Ford Motor Company Laindon, Basildon PO Box 2053 Essex SS15 6EE, England B&CE, Room 1289 Dearborn, MI 48121, USA Materials Engineering Product Engineering Office Ford Motor Co. of Australia Ltd Princes Highway, Norlane Victoria 3214, Australia
