1、 ENGINEERING MATERIAL SPECIFICATION Date Action Revisions 2006 09 22 Revised Inserted 3.0; Deleted 3.1, 3.2, 3.3, 3.15 Rev 3.7, 3.7.1, 3.8, 3.9, 5 DRH, JBM 1981 12 16 Released 5M1-6000-27 Printed copies are uncontrolled Copyright 2006, Ford Global Technologies, LLC Page 1 of 2 WATERSHIELD, POLYETHYL
2、ENE FOAM, DOOR AND ESB-M99G137-A QUARTER TRIM PANELS 1. SCOPE The material defined by this specification is a flexible, cross-linked closed cell polyethylene foam. 2. APPLICATION This specification was released originally for material used as a watershield for door and quarter panels on 1983 luxury
3、vehicles. Material supplied to this specification shall have a skin on one or both sides as specified on the engineering drawing. 3. REQUIREMENTS Material specification requirements are to be used for initial qualification of materials. 3.0 STANDARD REQUIREMENTS FOR PRODUCTION MATERIALS Material sup
4、pliers and part producers must conform to the Companys Standard Requirements For Production Materials (WSS-M99P1111-A). 3.4 CELL STRUCTURE Shall have a homogeneous, closed cell structure with no large voids or solid spots. It shall be free from internal defects such as cold shuts, folds, laps and, t
5、ears. 3.5 DENSITY, +/- 10% 32 kg/m3 (ASTM D 3575, 300 x 300 mm sample) 3.6 THICKNESS As specified on engineering drawing 3.7 TENSILE STRENGTH, min (ASTM D 3575, Suffix T) MD 225 kPa XD 200 kPa 3.7.1 Elongation, min MD 70% XD 50% ENGINEERING MATERIAL SPECIFICATION ESB-M99G137-A Printed copies are unc
6、ontrolled Copyright 2006, Ford Global Technologies, LLC Page 2 of 2 3.8 TEAR STRENGTH, min (ASTM D 624, Die C) MD 17.0 N/cm XD 10.5 N/cm 3.9 COMPRESSION SET, max 30% (ASTM D 3575, Suffix B based on original thickness) 3.10 THERMAL STABILITY, max (ASTM D 3575, Suffix S, except use 85 +/- 2 C) MD 3.0%
7、 XD 1.5% 3.11 WATER ABSORPTION, max (SAE J315b, 24 h immersion) Skin on both sides 30% Skin on one side 80% 3.12 COLD FLEXIBILITY No cracking Condition three 25 x 150 mm samples of the material in a cold box maintained at -29 +/- 2 C for 24 h and then slowly bend 180 around a 13 mm diameter mandrel
8、at the same temperature. 3.13 FOGGING (SAE J1756, 3 h at 100 C heating, 21 C cooling plate, post test conditioning 1 h and 16 h) Fog Number, min 60 Formation of clear film, droplets or crystals is cause for rejection. 3.14 FLAMMABILITY (ISO 3795/SAE J369) Burn Rate, max 100 mm/minute 5. GENERAL INFORMATION The information given below is provided for clarification and assistance in meeting the requirements of this specification. Cell count 5 - 25/linear cm Compressive load at 50% deflection 60 - 120 kPa
