1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions 2008 02 06 N-STATUS Replaced by WSK-M4D649-A G. Kowalski 2005 01 10 Revised Inserted 3.0; Deleted 3.17 &4 1963 10 24 Released AS1-1124 Printed copies are uncontrolled Copyright 2008, Ford Global Technologies, LLC Page 1 of 3 POLYETHYLENE, FOAM
2、 - PRESSURE SENSITIVE ADHESIVE BACKED ESB-M4D128-A NOT TO BE USED FOR NEW DESIGN 1. SCOPE The material defined by this specification is expanded polyethylene foam with a pressure sensitive adhesive applied to one side and covered with release paper. 2. APPLICATION This specification was released ori
3、ginally for material used as a sealer washer on a convertible top assembly. The adhesive is required for locating and temporary retention prior to mechanical assembly. 3. REQUIREMENTS 3.0 STANDARD REQUIREMENTS FOR PRODUCTION MATERIALS Material suppliers and part producers must conform to the Company
4、s Standard Requirements For Production Materials (WSS-M99P1111-A). 3.1 COLOR Natural or as specified on engineering drawing 3.2 CELL COUNT, min 15/in (59/100 mm) 3.3 CELL STRUCTURE Homogeneous cell structure with no large voids or solid spots and shall be free from internal defects such as tears. 3.
5、4 LOAD DEFLECTION 3.0 - 10.0 psi (21 - 69 kPa) (ASTM D 1056) Test Method: Sample size 1.0 x 1.0 in (25 x 25 mm). Determine the sample thickness under a 1.0 lb (4.4 N) preload. Deflect the sample 25% at 2.0 in (50 mm)/min. Record as psi (kPa) at 25% deflection. 3.5 TENSILE STRENGTH, min 18 psi (125 k
6、Pa) (ASTM D 1564) 3.6 ELONGATION Ultimate, min 25% (ASTM D 1564) 3.7 TEAR RESISTANCE, min 6.0 lb/in (1.1 kN/m) (ASTM D 624, Die “C“) ENGINEERING MATERIAL SPECIFICATIONESB-M4D128-A Printed copies are uncontrolled Copyright 2008, Ford Global Technologies, LLC Page 2 of 3 3.8 DIMENSIONAL STABILITY Line
7、ar dimensional expansion shall be less than 2% after being subjected to dry heat at 82 +/- 1 C for 8 h. Specimen size should be as large as sample part permits, but should not exceed 12 x 12 in (300 x 300 mm) x part thickness. 3.9 THERMAL CONDUCTANCE “K“ FACTOR, max 0.39 (ASTM C 236, using a 1 x 8 x
8、 8 in (25 x 200 x 200 mm) sample) 3.10 SOLVENT RESISTANCE No surface tackiness or evidence of foam deterioration. Test Method: Immerse specimens of the approved fabric and upholstery cleaners listed below for a period of 1 h at 23 +/- 2 C. Petroleum light naphtha M-14J147 Denaturated alcohol ESF-M8B
9、12-A Trichloroethylene ESF-M5B99-A 50% soap solution ESB-M1B9-A 3.11 LOW TEMPERATURE FLEXIBILITY No cracking Test Method: A sample or production part shall be conditioned 16 h at -29 C and flexed 180 over 1 in (25 mm) mandrel. Specimen size 6 in (150 mm) x width of part up to 1 in (25 mm) x part thi
10、ckness up to 1 in (25 mm). 3.12 WATER ABSORPTION, Static, by weight, max 70% (ASTM D 570, 24 h immersion) 3.13 COMPRESSION SET, max (ASTM D 395, Method “B“, 22 h at 23 +/- 2 C) At 25% Constant Deflection 60% At 50% Constant Deflection 75% 3.14 MELTING POINT, min 102 C (FLTM BO 021-02) 3.15 ADHESION
11、TO PAINTED METAL, min (ASTM D 1000, Method “A“, 12 in (300 mm/min peel rate) Normal 4.5 oz/in (49.3 N/m) width Humidity Aged 15 oz/in (165 N/m) width Dry Heat Aged 15 oz/in (165 N/m) width Test Method: The aged specimens shall be conditioned as follows: Humidity Aged: 24 h at 38 +/- 1 C and 95 - 100
12、% relative humidity. The samples shall be permitted to air dry a minimum of 24 h and not to exceed 48 h prior to testing. Dry Heat Aged: 72 h at 70 +/- 1 C and subsequently cooled to 23 +/- 2 C for 2 h minimum prior to testing. ENGINEERING MATERIAL SPECIFICATIONESB-M4D128-A Printed copies are uncont
13、rolled Copyright 2008, Ford Global Technologies, LLC Page 3 of 3 3.16 ODOR The foam shall exhibit no offensive odor in the “as received“ condition. 5. GENERAL INFORMATION The information given below is provided for clarification and assistance in meeting the requirements of this specification. 5.1 DENSITY 1.76 - 2.64 lb/ft3(ASTM D 1564) (28.2 - 42.3 kg/m3) 5.2 WATER ABSORPTION (By volume) 0.5% (ASTM C 272)
