1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions 2010 01 19 Revised Modified 3.4.3 for alternative test B. Witkowski 2006 08 23 Revised Removed from N-Status per B. Witkowski 1990 08 10 Released NB00I10043054038 D. Henrickson, J. McCallum Printed copies are uncontrolled Copyright 2010, Ford
2、Global Technologies, LLC Page 1 of 2 POLYURETHANE (PUR) FOAM, RIGID, 37 kg/m3ESB-M2D356-B 1. SCOPE The material defined by this specification is a fast curing, two part, foamed-in-place polyether polyurethane foam. This foam is formulated to be free of chloroflourocarbons (CFC). 2. APPLICATION This
3、specification was released originally for material used in the A and D pillars of the 1992 Crown Victoria to seal against wind noise and dust. 3. REQUIREMENTS Material specification requirements are to be used for initial qualification of materials. 3.0 STANDARD REQUIREMENTS FOR PRODUCTION MATERIALS
4、 Material suppliers and part producers must conform to the Companys Standard Requirements For Production Materials (WSS-M99P1111-A). 3.4 TEST SPECIMEN The following material properties shall be determined on specimens taken from molded test blocks or parts where possible. The specimen shall be free
5、of voids, hard spots, and densification lines. 3.4.1 Density, +/- 35% 37 kg/m3(ISO 845/ASTM D 3574, Test A, interior density) 3.4.2 Compressive Strength, min 95 kPa (ASTM D 1621, Procedure A, 10% deflection, sample size 50 x 50 x 50 mm, average of 3 samples) 3.4.3 Water Absorption, max 8% (SAE J315,
6、 24 h immersion, average of 3 test samples, 100 x 100 x 25 mm size, with skin) or alternatively humid environment absorption, max 25% prepare 100mm sqare by 300mm long box section from e-coated metal panels, fill panels with 100-150g foam, allow for 24 hr cure at room temperature. Determine weight o
7、f foam less metal and record. Expose assembly to 38C, 100% RH for 10 days, remove and condition at 23C, 50% RH for 24 hr and determine weight of foam. (Foam weight Wet-Foam dry)/Foam dry) X100= water absorption. Record for 3 samples. ENGINEERING MATERIAL SPECIFICATIONESB-M2D356-BPrinted copies are u
8、ncontrolled Copyright 2010, Ford Global Technologies, LLC Page 2 of 2 3.4.4 Dimensional Stability, Expansion, max (Any direction, average of 3 test samples) 3.4.4.1 48 h at 120 +/- 2 C 10.0% 3.4.4.2 7 days at 102 +/- 2 C 5.0% Test Method: Mark off 125 mm gage lengths (perpendicular directions) at mi
9、d-point and parallel to a side of a 150 x 150 x 25 mm test sample. Expose in a mechanical convection oven as indicated. 3.4.5 Aged Weight Loss, max 7% (Average of 3 test samples) Test Method: Weigh a 100 x 100 x 25 mm sample to the nearest mg (W1). Expose for 24 h at 120 +/- 2 C in a mechanical oven
10、 Remove sample and reweigh (W2) after 30 minutes in a desiccator. % Weight Loss = (W1- W2) x 100 W13.4.6 Cold Slam Resistance No adhesion (FLTM BV 101-02, 10 cycles, failure or foam 3 test samples minimum) cracking Test Method: . Phosphate and electrocoat steel panels per FLTM BI 120-01. Do not gui
11、de coat. . Coat electrocoated 100 x 300 mm panel with 32 mm thickness of foam and remove 25 mm of foam from each end. . Attach foam coated panel horizontally to the bottom of a 300 x 300 mm panel. Expose test samples to the following cycle: . 4 h at 82 +/- 2 C . 4 h at 95 +/- 5% RH and 38 +/- 2 C .
12、16 h a -29 +/- 2 C and test samples per step 10 of BV 101-02 at -29 C. 3.5 FLAMMABILITY (ISO 3795/SAE J369) Burn Rate, max 100 mm/minute 3.6 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.
