1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revision 2008 02 06 N-STATUS No replacement named G. Kowalski 2006 09 25 Revised Inserted 3.0; Deleted 3.1, 3.5, 3.6 & 4 1985 07 31 Released CEP1-CR532840 J.M. Printed copies are uncontrolled Copyright 2008, Ford Global Technologies, LLC Page 1 of 2 POL
2、YETHYLENE, SHEET - WITH PRESSURE SENSITIVE ESB-M99G144-A ADHESIVE NOT TO BE USED FOR NEW DESIGN 1. SCOPE The material defined by this specification is a polyethylene sheet with a pressure sensitive adhesive applied in specified areas. 2. APPLICATION This specification was released originally for mat
3、erial used as a door panel watershield on the 1986 Escort/Lynx. 3. REQUIREMENTS Material specification 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 Re
4、quirements For Production Materials (WSS-M99P1111-A). 3.2 BASE FILM 3.2.1 Thickness 0.15 +/- 0.02 mm 3.2.2 Specific Gravity 0.92 +/- 0.02 (ASTM D 792) 3.2.3 Tensile Strength, min (ASTM D 882, Method A) MD 12.5 MPa AMD 9.6 MPa 3.2.4 Elongation, min (ASTM D 882, Method A) MD 125% AMD 175% ENGINEERING
5、MATERIAL SPECIFICATION ESB-M99G144-A Printed copies are uncontrolled Copyright 2008, Ford Global Technologies, LLC Page 2 of 2 3.2.5 Tear Resistance, min (ASTM D 1938) MD 450 N/cm AMD 350 N/cm 3.2.6 Cold Flexibility No cracks Test Method: Cut 25 x 150 mm strips in both directions. Condition the stri
6、ps and a 13 mm diameter mandrel at -34 +/- 2 C for 4 h. Bend the conditioned strips 180 around the mandrel within 2 - 3 s. 3.2.7 Dimensional Stability, max +/- 1.0% (ASTM D 1204, 88 +/- 2 C/30 min) 3.3 FILM WITH ADHESIVE 3.3.1 Peel Strength, min (90 peel angle, 5 mm/s peel rate) Original, 20 minutes
7、 after application 1.7 N/cm Original, 24 h after application 2.4 N/cm After 24 h water immersion at 23 +/- 2 C 2.8 N/cm Aged 24 h at 88 +/- 2 C 7.5 N/cm Aged 24 h at -18 +/- 2 C 2.1 N/cm Sample Preparation: Bond 25 x 200 mm samples of adhesive coated film to 100 x 300 mm enamel painted steel panels
8、by passing over twice with a 2.2 kg roller. Condition bonded samples as noted above before testing. All tests conducted at standard conditions of 23 +/- 2 C and 50 +/- 5% relative humidity. 3.3.2 Hydrostatic Pressure Resistance No leakage (ASTM D 751, Method A, Procedure 1) Raise pressure at a rate
9、of 10 mm/s to maximum of 500 mm pressure. Sample Preparation: Cut a 25 x 25 mm sample of adhesive coated film and apply over 12.5 mm diameter hole in center of primed steel panel cut to size suitable for test machine being used. 3.4 FLAMMABILITY In order to comply with Federal Motor Vehicle Safety Standard No. 302, the materials, portions of components, and composites shall not burn or transmit a flame across its surface at a rate of more than 101 mm per minute. To demonstrate compliance, the sample size and method of testing shall be in accordance with FLTM BN 024-02.
