1、 ENGINEERING MATERIAL SPECIFICATION Date Action Revisions Rev 02 2012 02 16 N Status No replacement named N. Benipal, NA 2006 03 08 Revised Inserted 3.0; Deleted 3.9, 4 1985 12 20 Released C7P1-RD535156 PAK, BMM Controlled document at www.MATS Copyright 2012, Ford Global Technologies, LLC Page 1 of
2、2 CATALYST, ACID (SOLUTION), HIGH SOLIDS, ESB-M99J339-A LOW VOC THERMOSET BASECOAT/CLEARCOAT LOW BAKE REPAIR PROCESS NOT TO BE USED FOR NEW DESIGN 1. SCOPE The material defined by this specification is an acid catalyst solution incorporated to convert standard bake high solids, low VOC thermoset bas
3、ecoat/clearcoat enamels to low bake repair coatings. 2. APPLICATION This specification was released originally for material used to catalyze enamel for in-plant low bake repair of previously painted exterior vehicle surfaces. 3. REQUIREMENTS Material specification requirements are to be used for ini
4、tial 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). 3.1 SPECIFIC GRAVITY, 25/25 C 0.840 - 0.865 (ASTM D 891) 3.2 ACID NUMBER 170 - 180 (
5、ASTM D 1467) 3.3 FLASH POINT, min 11 C (ASTM D 56) 3.4 COMPOSITION (Percent by Weight) Aromatic Sulfonic Acid 37 Methyl Alcohol 42 Isopropyl Alcohol 21 3.5 INCORPORATION OF CATALYST 3.5.1 Basecoat Catalyst added 2% by volume Basecoat viscosity 32 - 36 s (ASTM D 1200, No. 2 Ford Cup) ENGINEERING MATE
6、RIAL SPECIFICATION ESB-M99J339-A Copyright 2012, Ford Global Technologies, LLC Page 2 of 2 3.5.2 Clearcoat Catalyst added 3% by volume Clearcoat viscosity 33 - 35 s (ASTM D 1200, No. 4 Ford Cup) 3.6 BAKE SCHEDULE Ambient 20 min at 99 C Metal Temp. 10 min at 99 C 3.7 PERFORMANCE Final appearance, glo
7、ss, intercoat adhesion, weathering and resistance properties shall be consistent with the specification requirements. 3.8 SHELF STABILITY Material shall maintain its strength, compatibility with enamels and be otherwise usable after standing for a minimum of 90 days at 26 +/- 1 C. Materials must remain clear and free of sediment.
