1、 ENGINEERING MATERIAL SPECIFICATION Date Action Revisions 2011 09 08 N Status Replaced by WSS-M99P41-A10/A72 G. Eaton, NA 2004 04 27 Revised Para 3.0 inserted; para 3.1, 3.2, 3.3, 3.7, 3.8 para 3.6 revised L. Rodigas 1991 01 02 EP00E01089480000 Released L. Rodigas Controlled document at www.MATS Cop
2、yright 2011, Ford Global Technologies, LLC Page 1 of 2 FILM, HOT STAMP, METALLIC, EXTERIOR WSK-M7G6-A NOT TO BE USED FOR NEW DESIGN 1. SCOPE The material defined by this specification is a multiple layer chromium or chromium-nickel stamping film suitable for the decorative hot stamping of plastic pa
3、rts. 2. APPLICATION This specification was released originally for exterior plastic parts where a decorative metallic coating is required. 3. REQUIREMENTS 3.0 STANDARD REQUIREMENTS FOR PRODUCTION MATERIALS Material suppliers and part producers must conform to the Companys Standard Requirements For P
4、roduction Materials (WSS-M99P1111-A). 3.4 FILM PROPERTIES 3.4.1 Construction . Supporting film, transparent . Lacquer . Chromium or chromium-nickel coating (metallized in vacuum) . Primer adhesive . Hot melt adhesive (1) . Protective Coating as specified on Engineering Drawing (2) (1) The hot melt a
5、dhesive must be compatible with the plastic material and must be carefully matched with the primer adhesive. (2) If a protective coating is required on the Engineering Drawing, it shall be compatible with the metallic layer and plastic substrate. 3.4.2 Appearance There shall be no evidence of surfac
6、e failure on the hot stamping film. 3.4.3 Color and Gloss Color and gloss shall match the hot stamped Master Trim Sample as approved by the Design Department. 3.4.4 Thickness (ISO 4593) 3.4.4.1 Total Thickness 19 - 30 micrometre ENGINEERING MATERIAL SPECIFICATION WSK-M7G6-A Printed copies are uncont
7、rolled Copyright 2011, Ford Global Technologies, LLC Page 2 of 2 3.4.4.2 Supporting Film, min 15 micrometre Test Method: A tape (e.g. the 3M-tape Nr. 898 or equivalent) shall be applied on the metallized side of the hot stamping film by pressing firmly. The tape shall be removed with an upward motio
8、n at a moderate speed. Measure the thickness of the remaining film according to ISO 4593. 3.4.4.3 Coating, min 5 micrometre 3.5 RESISTANCE PROPERTIES 3.5.1 Preparation of Test Panels Except where otherwise noted, resistance property tests shall be conducted using injection molded plastic panels hot
9、stamped under standard production conditions as recommended by the supplier of the foil. Plastic Panels: Preferably black pigmented ABS/PC according to WSK-M4D685-A or equivalent. 3.5.2 Weathering Resistance After exposure in accordance with 3.5.2.1, 3.5.2.2 and 3.5.2.3 the material shall show no fa
10、ding or color change in excess of specified AATCC rating (AATCC Gray Scale for Evaluating Change in Color, 10 step). In addition, there shall be no cracking, crazing or other deterioration. A slight loss of gloss or chalking will be allowed provided an acceptable appearance can be achieved by polish
11、ing with Ford car polish (auto wax) at permission of the affected Product Development Materials Activity. All initial approvals will be based on the preliminary weatherometer exposure, pending Florida exposure results for final approval. 3.5.2.1 Xenon Arc Weatherometer Rating 4-5 (SAE J1960, 1980 kJ
12、/m2 exposure minimum, specimen size: 150 x 100 mm minimum, 3.2 +/- 0.2 mm thick) 3.5.2.2 12 months Florida Rating 4-5 (FLTM BI 160-01, 5 south, direct weathering inland, specimen size: 150 x 100 mm, minimum, 3.2 +/- 0.2 mm thick) 3.5.2.3 24 months Florida Rating 3 (FLTM BI 160-01, 5 south, direct weathering inland, specimen size: 150 x 100 mm, minimum, 3.2 +/- 0.2 mm thick) 3.6 HOT STAMPED FINISHED PARTS The finished part shall meet the requirements of performance specifications WSK-M98P6-A.
