1、 ENGINEERING MATERIAL SPECIFICATION Date Action Revisions Rev 02 2012 05 04 N Status No usage or replacement N. Benipal, NA 2008 01 23 Revised Inserted 3.0; Deleted 3.1, 3.2, 3.3, 3.10 (FLTM BI 102-01) min 40% The non-volatile content shall be determined at a spray viscosity of 30 s according to par
2、a 3.5.4. 3.5.2 Density See Initial Sample +/- 0.02 g/mL (ASTM D 1475) ENGINEERING MATERIAL SPECIFICATION WSK-M2J223-A Copyright 2012, Ford Global Technologies, LLC Page 2 of 3 3.5.3 Viscosity as supplied See Initial Sample +/- 5 s (FLTM BI 111-01) 3.5.4 Spray Viscosity As specified by the supplier (
3、FLTM BI 111-01, FC #3) The material shall be reduced with WSK-M14J246-A or equivalent material. 3.5.5 Mixing ratio As specified by the supplier The material shall be cured with isocyanate hardener WSK-M99J363-A or equivalent. 3.5.6 Dry Hiding Power, max 70 micrometers (FLTM BI 158-01) 3.5.7 Storage
4、Stability 90 days During a storage of 90 days between 5 and 32 C temperature the material as supplied shall not settle up or cake insoluble. After the storage the material must pass all specification requirements. 3.6 PREPARATION OF TEST PANELS 3.6.1 Substrate: Polycarbonate, ABS, Polyamide as well
5、as metallic substrates as required on Engineering Drawing. Note: PP/EPDM plastics must be primed with an adhesion primer prior to painting. 3.6.2 Substrate Preparation The surface to be painted shall be cleaned by an acceptable process, e.g. power wash, to remove mold releasing agents, fingerprints,
6、 oils, dirt and moisture. 3.6.3 Primer Surfacer (only if required) Application of a primer surfacer, film thickness and baking as specified in the relevant material specification. 3.6.4 Top coat application Dry film thickness: 70 - 80 micrometer; Flash off time: 5 minutes; Baking: 20 minutes at 80 C
7、 (Object temperature). 3.6.5 Ageing Test panels prepared under this specification shall be aged for at least 72 h at 23 +/- 2 C or 16 h at 45 +/- 1 C before testing for resistance properties. ENGINEERING MATERIAL SPECIFICATION WSK-M2J223-A Copyright 2012, Ford Global Technologies, LLC Page 3 of 3 3.
8、7 APPEARANCE Color, gloss, grain and surface finish shall match master Trim Sample and/or Master Appearance Sample as approved by Design. 3.7.1 Color See MAS - Panel (FLTM BI 109-01) 3.7.2 Gloss, max 2% (FLTM BI 110-01, 60) 3.8 RESISTANCE PROPERTIES Test Panels and painted plastic parts prepared acc
9、ording to this specification shall meet all requirements of performance specification WSK-M2P163-A. 3.9 QUALITY The top coat must be adaptable for application in accordance with the appropriate Ford Motor Company Process Specification. The top coat must be compatible with all related materials, e.g.
10、 primer, plastic substrates, adhesive, etc. 5. GENERAL INFORMATION The information given below is provided for clarification and assistance in meeting the requirements of this specification. 5.1 DENSITY OF THE DRY FILM See Initial Sample +/- 0.02 kg/L (FLTM BI 154-02) 5.2 MATERIAL REFERENCE All related materials used for approval of topcoat according to this specification, e.g. primers or plastic substrates, shall be noted in the Initial Sample Report of the topcoat.
