1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions 2010 10 11 N-STATUS No replacement named C. Mracna, NA 2006 09 27 Revised Inserted 3.0; Deleted 3.1, 3.2, 3.3, 3.9, 3.10 then recalculate the loss in reflectance. 3.5.7 Migration Staining and Blocking (FLTM BN 103-01) No evidence of injurious
2、exudation, adhesion (tackiness), separation, color transfer, staining, or flattening of embossing when placed face to face with itself and the standard vinyl test material. 3.5.8 Resistance to Abrasion, min 250 cycles (FLTM BN 108-02, 500 g load, CS-10 wheels) The abraded area shall be compatible wi
3、th the adjacent unabraded area. Production materials shall exhibit abrasion properties equal to or better than the sample approved by the Materials Engineering Activity. 3.5.9 Resistance to Scuffing, min 250 cycles (FLTM BN 108-04 0.9 kg load, A head) No evidence of lifting, peeling, or excessive sc
4、uffing. Production materials shall exhibit scuffing properties equal to or better than the sample approved by the Materials Engineering Activity. 3.5.10 Scuffing, min 25 cycles (FLTM BN 108-10, Crockmeter scuff) No evidence of lifting, peeling, or excessive scuffing. Production materials shall exhib
5、it scuffing properties equal to or better than the sample approved by the Materials Engineering Activity. ENGINEERING MATERIAL SPECIFICATIONESB-M98D21-APrinted copies are uncontrolled Copyright 2010, Ford Global Technologies, LLC Page 3 of 6 3.5.11 Resistance to H2S Staining, min Rating 5.0 (FLTM AN
6、 102-01, AATCC evaluation Procedure 1) No discoloration or staining. 3.5.12 Coating Adhesion (FLTM BI 106-01, Method C) The tape shall not lift or delaminate the surface coating. 3.5.13 Water Resistance, min 24 h (FLTM BI 104-01) Scribe parallel lines through the surface coating (per 3.5.12) immedia
7、tely after removal from the water to determine adhesion. No blistering or dulling. The tape shall not lift or delaminate the surface coating. 3.5.14 Volatile Loss, max 1% Test Method: Suspend 25 x 75 mm weighed specimens in a mechanical convection oven for 72 h at 82 +/- 2 C. Cool 1 h in a desiccato
8、r, reweigh, and compute volatile loss. 3.6 POLYURETHANE FOAM 3.6.1 Construction The padding shall be a polyether polyurethane foam consisting of a uniform fine or medium sized cell structure. 3.6.2 Compression Set, max 3.6.2.1 Normal 90% (ISO 1865, Method A/ ASTM D 3574, Test D, 50 % constant deflec
9、tion and shall be computed on the original deflection). 3.6.2.2 Humidity Aged, 80% Subject to the conditions in FLTM BO 112-01, after which the compression set shall be determined in keeping with para 3.6.2.1 3.6.3 Resistance to Aging Shall show no evidence of brittleness or cracking when a 6 x 25 x
10、 100 mm specimen is flexed 180 around a 19 - 20 mm diameter mandrel, after an exposure period of 120 h in a mechanical convection oven maintained at 82 +/- 2 C. ENGINEERING MATERIAL SPECIFICATIONESB-M98D21-APrinted copies are uncontrolled Copyright 2010, Ford Global Technologies, LLC Page 4 of 6 3.6
11、.4 Tear Resistance, min 88 N/m (ISO DIS 8067/ASTM D 3574, Test F, 50 mm/minute test speed) 3.6.5 Tensile Strength, min 103 kPa (ISO 1798/ASTM D 3574, Test E) 3.6.5.1 Elongation, min 20% 3.6.6 Resistance to Deterioration Must not deteriorate (FLTM BO 112-01) or crack 3.6.7 Volume Loss, max 7% Test Me
12、thod: Expose a 15 x 40 x 75 mm test specimen to a temperature of 70 +/- 2 C for a period of 7 days. At the termination of the exposure period, remeasure the test specimen and compute volume loss. 3.7 ASSEMBLY REQUIREMENTS Except where otherwise noted, resistance property tests shall be conducted wit
13、h both cover and 6 mm foam backing. 3.7.1 Surface Void Detection Skin and foam assemblies that have objectionable voids or solid spots that can be detected visually or by feel, before or after exposing the assembly to one hour at 102 +/- 2 C, shall be subject to rejection. Note: Other techniques of
14、detecting objectionable foam voids can be used, such as a laser light and vacuum chamber assembly, if it can be demonstrated that the technique is at least equivalent to heat aging the assembly for the designated time and temperature. 3.7.2 Ply Adhesion, avg, min 88 N/m (ASTM D 413, Machine Method (
15、Not less than 25 mm/min travel) 70 N/m at any point or 100% foam tear) The cover stock must adhere to the foam at all points with no blisters permissible. 3.7.3 Load Deflection (FLTM BO 113-03, Steps 1-5 only) The load values, test location, and depth of penetration shall be as specified on the engi
16、neering drawing. 3.7.4 Indentation and Recovery Total recovery (FLTM BO 111-02, method B) Minor visible skin wrinkles evident after the alloted recovery time, but not evident after an additional 1 h recovery, shall be considered acceptable. ENGINEERING MATERIAL SPECIFICATIONESB-M98D21-APrinted copie
17、s are uncontrolled Copyright 2010, Ford Global Technologies, LLC Page 5 of 6 3.7.5 Compatibility After Heat Aging 3.7.5.1 Color Stability Rating 3 (AATCC Evaluation Procedure 1) Shall show no evidence of tackiness, spewing, or exhibit staining, color tone change, or change in hue in excess of specif
18、ied AATCC rating. Any spotty or non-uniform staining or discoloration shall be cause for rejection. 3.7.5.2 Cold Flexibility No cracks (180 bend at -20 C over a 19 - 20 mm diameter mandrel, specimen size 50 x 150 mm) Remove foam and bend with foam side of skin to mandrel at the specified temperature
19、. 3.7.5.3 Elongation at Break, -50% max change from original value (ISO R 527, type 2/ASTM D 638M, type M-II, 100 mm/minute test speed) Test with foam backing removed. Test Method: Place test specimens with 6 mm of foam in an air circulating oven at 100 +/- 2 C for 14 days. Remove and condition 24 h
20、 at standard atmosphere. The oven used shall conform to ASTM D 573 (E 145 Type IIA). Provide a minumum oven space of 2 L/100 cm2of specimen size for heat exposure tests. 3.7.6 Cold Impact The assembly shall show no evidence of cracking or breaking and shall fully recover from indentation in the time
21、 required for the assembly to return to 23 +/- 2 C. Test Method: Conduct this test with the trim assembly mounted on an actual or simulated production support foundation using the approved retention methods. Expose the mounted assembly for 24 h at 80 +/- 2 C and then for 5 h at -30 +/- C inside the
22、cold box or if removed from the cold box, drop the rubber ball within ten seconds from a height of 610 mm once on the upper area, once on the lower area, once on any bondline area, and once on all moldings; or drop the rubber ball as specified on the engineering drawing. The rubber ball shall weigh
23、4.54 kg, be 127 mm in diameter and 60 +/- 5 durometer A hardness. 3.7.7 Odor, max Rating 2 (FLTM BO 131-01/SAE J1351) ENGINEERING MATERIAL SPECIFICATIONESB-M98D21-APrinted copies are uncontrolled Copyright 2010, Ford Global Technologies, LLC Page 6 of 6 3.7.8 Fogging, min (FLTM BO 116-03, 3 h at 100
24、 C) Fog Number 60 Test fogging specimen with skin side up and foam side up. Report most adverse fogging value. The formation of droplets or coalescence into a clear film is cause for rejection. 3.7.9 Fade Resistance (Expose specimens with 6 mm of foam) The material shall not stain, exhibit color ton
25、e change or change in hue in excess of the specified AATCC rating. In addition, there shall be no cracking, crazing, or other deterioration. The material must remain flexible and exhibit no cracking when bent around a 19 - 20 mm mandrel after specified exposure. Remove foam and bend with foam side o
26、f skin to mandrel. 3.7.9.1 Xenon Arc Weatherometer (SAE J1885, AATCC Evaluation Procedure 1) 488.8 kJ/m2Rating 4.5 1015.2 kJ/m24.0 3.7.9.2 Florida and Arizona (FLTM BI 160-01, south, under glass, variable angle, specimen size 100 x 150 mm, AATCC Evaluation Procedure 1) 12 months Rating 4.0 Florida and Arizona specimens to be submitted on initial submission, new colors, or when other changes are made as defined under SUPPLIERS RESPONSIBILITY in WSS-M99P1111-A. 3.8 FLAMMABILITY, max 100 mm/minute (ISO 3795/SAE J369)
