1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions 2010 12 14 N-STATUS A1 Replaced by WSS-M2P190-A; A2 Replaced by WSS-M2P177-C2 G. Weber, NA2003 08 20 Revised Para 3.0 inserted; Para 3.1, 3.2, 3.3, 3.8, 4 deleted 1999 06 17 Activated D. Green Printed copies are uncontrolled Copyright 2010, Fo
2、rd Global Technologies, Inc. Page 1 of 3 PAINT PERFORMANCE, WATER BASED, AUTODEPOSITED, WSS-M2P187-A1 NON VISIBLE INTERIOR PAINT PERFORMANCE, WATER BASED, AUTODEPOSITED, WSS-M2P187-A2 NON VISIBLE EXTERIOR NOT TO BE USED FOR NEW DESIGN 1. SCOPE These specifications define the performance requirements
3、 for an auto-deposited surface coating system. 2. APPLICATION These specifications were originally released for an autodeposited coating generally used for application over body and chassis parts, such as seat tracks, seat frames, leaf springs, axle components and head lamp mounts. 3. REQUIREMENTS M
4、aterial 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 Requirements For Production Materials (WSS-M99P1111-A). 3.4 SUBSTRATE Cold rolled o
5、r hot rolled steel which is subsequently cleaned and water rinsed prior to the application of the coating by auto-deposition. 3.5 APPEARANCE 3.5.1 Color (FLTM BI 109-01) Shall match Master Panel approved by Styling. 3.5.2 Gloss (FLTM BI 110-01) Shall be within the limits specified on the engineering
6、 drawing. ENGINEERING MATERIAL SPECIFICATIONWSS-M2P187-A1/A2 Printed copies are uncontrolled Copyright 2010, Ford Global Technologies, Inc. Page 2 of 3 3.6 FILM PROPERTIES 3.6.1 Film Thickness, min. (FLTM BI 117-01) WSS-M2P187-A1 15 micrometer min. WSS-M2P187-A2 20 micrometer min. 3.6.2 Initial Hard
7、ness Shall be sufficiently hard after curing to withstand normal handling. 3.6.2.1 Pencil Hardness, min 3H (FLTM BI 151-01) 3.6.3 Adhesion Grade 0 (FLTM BI 106-01, Method B) No flaking or chipping. 3.7 RESISTANCE PROPERTIES 3.7.1 Salt Spray Exposure, min (FLTM BI 103-01) WSS-M2P187-A1 240 h WSS-M2P1
8、87-A2 480 h No blistering, rusting or loss of adhesion more than 3 mm from a line scribed through to bare metal. Face rusting no greater than 5%. 3.7.2 Water Immersion, min 240 h (FLTM BI 104-01) No blistering, dulling or change in color. No loss of adhesion, using para 3.6.3 on removal from Water I
9、mmersion bath. 3.7.3 Stone Chip Resistance WSS-M2P187-A2 3.7.3.1 Stone Chip Resistance, min Rating 4 (FLTM BI 157-06) 3.7.3.2 Chip Resistance, max Rating 4B (SAE J400) 3.7.4 Painted Sheet Metal Corrosion Test WSS-M2P187-A2 (FLTM BI 123-01) 5 cycles No blistering, rusting or loss of adhesion greater
10、than 2 mm from a line scribed through to bare metal. No general rusting blistering or loss of adhesion. ENGINEERING MATERIAL SPECIFICATIONWSS-M2P187-A1/A2 Printed copies are uncontrolled Copyright 2010, Ford Global Technologies, Inc. Page 3 of 3 3.7.5 Mar and Scratch Resistance WSS-M2P187-A1 (FLTM B
11、N 108-04) 100 cycles Head A with a 0.9 Kg load No wear through of the coating to expose substrate. 3.7.6 Abrasion Resistance WSS-M2P187-A1 (FLTM BN 108-02) 1000 cycles CS 10 wheels with a 500 g load No wear through coating to expose the base substrate. 3.7.7 Resistance to Water and Soap Spotting (FL
12、TM BI 113-01) Discoloration, min Rating 4 (ISO 105-A02/AATCC Evaluation Procedure 1) No film softening. 3.7.8 Fogging (SAE J1756, 3 h at 100 C heating, 21 C cooling plate, post test conditioning 1 h and 16 h) Fog Number, min 70 Formation of clear film, droplets or crystals is cause for rejection. 3.7.9 Cleaning Solution Resistance WSS-M2P187-A1 (Crocking Test, FLTM BN 107-01) 10 cycles Discoloration of saturated textile Rating 3 max. AATCC Gray Scale Test Method: Saturate white cotton cloth with the following cleaners: Current Multi purpose cleaner Current Glass cleaner Xylene
