1、 ENGINEERING MATERIAL SPECIFICATION Material Name Specification Number Date Action Revisions 2000 11 29 Revised Updated A. Cockman 1987 08 21 P022-155 Released G. S. Balint Printed copies are uncontrolled Page 1 of 4 Copyright 2000, Ford Global Technologies, Inc. PAINT PERFORMANCE, STYRENEACRYLONITR
2、ILE (S/A) + ESR-M2P134-A EPDM BLEND - LAMINATED BODY PARTS 1. SCOPE This specification defines the performance requirements for painted laminated exterior body parts where the top layer is a styrene-acrylonitrile + EPDM blend. 2. APPLICATION This specification was released originally for a high glos
3、s air dry color coat suitable for use on laminated exterior parts where the top layer is a styreneacrylonitrile + EPDM blend plastic. 3. REQUIREMENTS Material specification requirements are to be used for initial qualification of materials. 3.1 QUALITY SYSTEM REQUIREMENTS Material suppliers and part
4、 producers must conform to the Companys Quality System Requirements. 3.2 TEST SPECIMENS Parts to be used for testing must be painted with the complete system including primer, primer-sealer, or hardener if any of these are necessary to meet the requirements of this specification. A different hardene
5、r system may be used with non-clearcoat colors if this is necessary to meet the requirements of this specification. 3.3 TEST PANELS When it is not feasible to test the actual part because of its size or shape, laboratory panels may be substituted. Test panels shall be processed concurrently with par
6、ts and shall be representative of parts with respect to substrate, surface finish, primer or primer-sealer (if necessary), sanding, cleaning, color coat thickness and dry time. If parts are to be force-dried, test panels must be similarly force-dried. ENGINEERING MATERIAL SPECIFICATION ESR-M2P134-A
7、Page 2 of 4 Copyright 2000, Ford Global Technologies, Inc. 3.4 SURFACE PREPARATION The surface to be painted shall be cleaned and degreased by an acceptable process. If necessary to meet the requirements of this specification, the surface may be lightly sanded and an anti-static applied. 3.5 COLOR C
8、OAT Must be air drying and produce an acceptable surface with a minimum number of coats. 3.6 FILM PROPERTIES 3.6.1 Color (FLTM BI 9-1) Shall match master color panel approved by Styling. 3.6.2 Gloss (FLTM BI 110-1, 60 deg gloss meter) The gloss shall be 92 min (“A“ gloss). The gloss of production pa
9、rts may be slightly lower but in no case may it be lower than adjacent parts of the same color. 3.6.3 Initial Hardness Shall be sufficiently cured when part is moved from painting area to withstand normal handling and shipping without damage. 3.6.4 Film Thickness (FLTM BI 17-1) Color Coat, min 46 mi
10、crometre max (initial coat) 61 micrometre max (after repair) 127 micrometre 3.6.5 Appearance The color coat shall dry to a presentable, serviceable film showing no craters, pinholes, seediness, abnormal roughness or excessive metallic mottling. The appearance shall not be adversely affected by force
11、d drying. It shall have a reasonable tolerance for ordinary automotive cleaners and exhibit excellent polishing characteristics. ENGINEERING MATERIAL SPECIFICATION ESR-M2P134-A Page 3 of 4 Copyright 2000, Ford Global Technologies, Inc. 3.7 DURABILITY PROPERTIES 3.7.1 All parts and/or panels shall be
12、 aged 72 h at 23 +/- 2 C before testing durability properties. 3.7.2 Adhesion, min Grade 2 (FLTM BI 106-1) 3.7.3 Chip Resistance (FLTM BI 7-1) No worse than Figure 2. 3.7.4 Water Resistance, min 240 h (FLTM BI 4-1) No blistering, dulling, or color change. 3.7.5 Resistance to Water and Soap Spotting
13、FLTM BI 113-1, except use of colorimeter is omitted) No dulling or color change. Stains which can be removed with a mild cleaner or non-abrasive wax are acceptable. 3.7.6 Resistance to Acid Spotting (FLTM BI 13-2, except use of colorimeter is omitted) No dulling or color change. Stains which can be
14、 removed with a mild cleaner or non-abrasive wax are acceptable. 3.7.7 Condensing Humidity 240 h (FLTM BI 4-2, Procedure A) No blistering, dulling, or loss of adhesion. 3.7.8 Cold Checking (FLTM BI 7-2, 10 cycles) No cracking, checking, loss of adhesion, or noticeable dulling. 3.7.9 Thermal Shock (F
15、LTM BI 7-5) No blistering or loss of adhesion beyond an area bounded by 3.2 mm on either side of the scribe lines. ENGINEERING MATERIAL SPECIFICATION ESR-M2P134-A Page 4 of 4 Copyright 2000, Ford Global Technologies, Inc. 3.7.10 Cold Impact Resistance at -29 C (FLTM BI 8-1) The cold impact resistanc
16、e of painted parts or test panels shall be a minimum of 80 % of the specified cold impact resistance of unpainted parts or test panels. The impact location must be identical for both painted and unpainted test pieces. 3.7.11 Weathering Resistance, min 800 h (FLTM BO 1-1) Shall show a minimum degree
17、of fading, chalking, dulling or color change. No greater loss of gloss is permitted than equivalent production colors. No increase of brittleness or loss of adhesion is permitted and specimens shall be completely free from evidence of cracking, checking, blistering or peeling. 3.8 SUPPLIERS RESPONSI
18、BILITY All materials supplied to this specification must be equivalent in all characteristics to the material upon which approval was originally granted. Prior to making any changes to the material originally approved under this specification, whether or not such changes affect the materials ability
19、 to meet the specification requirements, the Supplier shall notify the affected Purchasing, and Materials Engineering activities (with reasons) of the proposed changes. Upon notification of the Company, further instructions will be provided. Note: Suppliers should be prepared to provide test data an
20、d samples demonstrating compliance to this specification, if requested. Substance restrictions imposed by regulations or Company direction applies to the materials addressed by this document. The restrictions are identified in Restricted Substance Management Standard WSS-M99P9999-A1. 4. APPROVAL OF
21、MATERIALS Materials defined by this specification for direct supply to the Company must have prior approval. Certain materials subcontracted by part suppliers may also require prior approval. These include materials critical to the Companys business for regulatory, safety, environmental or compatibi
22、lity requirements or contractual agreements. Suppliers desiring approval of their materials shall first obtain an expression of interest from Purchasing, Design or Materials Engineering activity. Upon request, the Supplier shall submit a completed copy of their laboratory test reports, signed by a qualified and authorized representative of the test facility, demonstrating full compliance with all the requirements of this specification.
