1、 ENGINEERING MATERIAL SPECIFICATIONDate Action Revisions 2005 08 29 Revised Inserted 3.0; Revised 3.8, Deleted 3.9 and 4 1994 12 06 Revised and Retyped, was 12 pages 1983 04 21 Last release SM/EQ 5352 TP Printed copies are uncontrolled Copyright 2005, Ford Global Technologies, LLC Page 1 of 5 TWO PA
2、CK STONEPECK RESISTANT TOPCOAT ESK-M99J312-A TWO PACK STONEPECK RESISTANT TOPCOAT ESK-M99J312-B 1. SCOPE The materials defined by these specifications are two pack stonepeck resistant topcoats, suitable for exterior exposure. 2. APPLICATION The materials will be pneumatic or airless applied with 2K
3、spray equipment on baked enamel on lower body areas where high stonepeck resistance is required. The materials have to be used in combination with aliphatic polyisocyanate hardener ESK-M99J313-A. The materials are as well curing by baking as by air drying. In general, ESK-M99J312-A is textured where
4、as ESK-M99J312-B is not textured and preferably used for air drying, forced air drying or infrared drying repair. 3. REQUIREMENTS 3.0 STANDARD REQUIREMENTS FOR PRODUCTION MATERIALS Material suppliers and part producers must conform to the Companys Standard Requirements For Production Materials (WSS-
5、M99P1111-A). 3.1 COMPOSITION 3.1.1 Vehicle Polyester, containing hydroxyl groups capable of reaction with polyisocyanate. For special effects, the additional use of polyamide powders is permitted. 3.1.2 Pigments Inert pigments and fillers to provide the desired color. The use of non-inert pigments o
6、r fillers, e.g. zinc oxyde, zinc sulfide, calcium carbonate, is not permitted. 3.1.3 Special Data All initial sample and batch submissions must indicate density (ASTM D 1475) and non-volatile content (FLTM BI 102-01) of material as supplied on sample report. 3.2 PHYSICAL PROPERTIES 3.2.1 Non-Volatil
7、e (FLTM BI 102-01) According to approved initial sample report +/- 1%, but minimum 70%. ENGINEERING MATERIAL SPECIFICATIONESK-M99J312-A/BPrinted copies are uncontrolled Copyright 2005, Ford Global Technologies, LLC Page 2 of 5 3.2.2 Density (ASTM D 1475) According to approved initial sample report +
8、/- 0.05, preferably 1.40. 3.2.3 Package Viscosity 1400 +/- 100 mPa.s/20 C using a rotation viscometer. 3.2.4 Shelf Stability During a storage of 3 months at room temperature, the material as received shall not gel or liver upon standing and must be free from settling which cannot be dispersed by nor
9、mal agitation. 3.2.5 Mixing Ratio with Hardener ESK-M99J312-A/B and aliphatic polyisocyanate hardener ESK-M99J313-A as specified by vendor, preferably 10:1 (by weight). ESK-M99J312-A/B and ESK-M99J313-A shall be of same source. The material shall be ready for spray application after mixing. 3.2.6 Po
10、t Life Minimum 3 h at 20 C. Minimum 1 h at 30 C. 3.3 PREPARATION OF TEST PANELS (FLTM BI 103-02, Section Bb) Use materials according to the latest production status and bake according to the valid material specification. For repair air dry the material. 3.3.1 Baking Enamels to be Used 3.3.1.1 S-M32J
11、100-E and/or SK-M98J9552-A Lightest and darkest solid color of each manufacturer supplying to the plant where ESK-M99J312-A/ESK-M99J313-A are intended for use. Do not sand test panels. 3.3.1.2 S-M32J110-A/B/SK-M32J9553-A Silver metallic basecoat and clearcoat of that manufacturer supplying to the pl
12、ant where ESK-M99J312-A/ESK-M99J313-A are intended for use. Do not sand test panels. ENGINEERING MATERIAL SPECIFICATIONESK-M99J312-A/BPrinted copies are uncontrolled Copyright 2005, Ford Global Technologies, LLC Page 3 of 5 3.3.2 Application of ESK-M99J312-A/B 1 hour after enamel baking, panels are
13、treated as follows: Mix ESK-M99J312-A/B with ESK-M99J313-A as specified by the vendor. Apply material under test to a dry film thickness of 150 - 200 micrometre using pneumatic spray equipment. Flash-off 3 minutes at room temperature. Bake 10 minutes/130 C metal temperature. For repair, air dry 16 h
14、ours at room temperature. 3.4 AGING OF TEST PANELS Prior to testing, panels shall be aged as follows: 3.4.1 Panels for Resistance to Wax and Dewax Materials 6 hours at room temperature. 3.4.2 All Other Panels 3 days at room temperature. 3.5 APPEARANCE 3.5.1 Color (FLTM BI 109-01) Color shall match t
15、he approved master panel. 3.5.2 Gloss (FLTM BI 110-01, 60 glossmeter) According to the approved master panel +/- 5. 3.5.3 Structure (if required) Equal or similar to the approved master panel. 3.6 FILM PROPERTIES 3.6.1 Film Thickness (FLTM BI 117-01) 150 - 200 micrometre for ESK-M99J312-A/B. 3.6.2 A
16、dhesion 3.6.2.1 Chip Resistance Rating 0 (FLTM EU-BI 007-01) ENGINEERING MATERIAL SPECIFICATIONESK-M99J312-A/BPrinted copies are uncontrolled Copyright 2005, Ford Global Technologies, LLC Page 4 of 5 3.7 RESISTANCE PROPERTIES 3.7.1 Salt Fog Resistance 240 h (FLTM BI 103-01) No blistering and rusting
17、 on panel surface and no more than 4 mm rust creepage and/or loss of adhesion from a line scribed to bare metal. 3.7.2 Water Resistance 240 h (FLTM BI 104-01) No blistering, softening or dulling. A slight change of color is permitted. 3.7.3 Stone Chip Resistance 3.7.3.1 FLTM EU-BI 057-02 Rating 0 3.
18、7.3.2 FLTM EU-BI 057-03, max Rating 1 3.7.3.3 Stone Chip Resistance (FLTM EU-BI 057-03), After 240 h Water Immersion Test (FLTM BI 104-01) 1 hour after test end maximum Rating 1 3.7.4 Cold Check Resistance (FLTM BI 107-02) Prepare test panels according to 3.3. ESK-M99J312-A/B shall withstand a minim
19、um of 10 cold check cycles without cracking or noticeable dulling. 3.7.5 Resistance to Applicable Wax and Dewax Materials Application of wax preservative after six hours aging at room temperature, and the removal of the preservative after a further 72 hours by any current, dewax compound shall have
20、no deleterious effect upon the quality or appearance of the paint film. 3.7.6 Resistance to Water and Soap Spotting (FLTM BI 113-01) No change of color and/or gloss. 3.7.7 Resistance to Acid Spotting (FLTM BI 113-02) No change of color and/or gloss. ENGINEERING MATERIAL SPECIFICATIONESK-M99J312-A/BP
21、rinted copies are uncontrolled Copyright 2005, Ford Global Technologies, LLC Page 5 of 5 3.7.8 Weathering Resistance (FLTM BI 160-01) Preparation of test panels according to 3.3. 12 months Florida exposure. Test panels shall show a minimum degree of fading, chalking, dulling or color change. No incr
22、ease of brittleness nor loss of adhesion is permitted, and the test panel shall be completely free from evidence of cracking, checking, blistering, peeling or rusting after exposure. Do not polish test panels prior to evaluation. 3.8 SUBSTANCE CONTROL Legal, health, safety and environmental constraints, may apply to the materials which are submitted for approval to this specification. Refer to Engineering Material Specification WSS-M99P9999-A1.
