1、 ENGINEERING MATERIAL SPECIFICATION Date Action Revisions 2008 05 30 Revised NO TECHNICAL CHANGES MADE; Inserted 3.0; Deleted 3.1, 3.2, 3.9 FLTMs Updated 1991 03 01 Revised Revised 3.3.3 C0108948200 1988 05 10 Released SM/EQ 4490 TP K. Wolters Printed copies are uncontrolled Copyright 2008, Ford Glo
2、bal Technologies, LLC Page 1 of 5 PRIMER SURFACER, PU-MODIFIED ESK-M6J151-A PRIMER SURFACER, PU-MODIFIED, MEDIUM SOLID ESK-M6J151-A2 PRIMER SURFACER, PU-MODIFIED, COLOURED ESK-M6J151-A3 1. SCOPE The materials defined by these specifications are solvent borne stone peck resistant baking Primer/Surfac
3、er. They are formulated for maximum surface quality and hold-out properties after baking. 2. APPLICATION These specifications were originally released for materials used as primer/surfacer on baked EC surfaces (i.e. SK-M64J9554-C/D or WSK-M64J29-C) on bodies and small parts. The primers are suitable
4、 for use under solvent borne topcoats (i.e. solid color SK-M98J9552-A and basecoat/clearcoat S-M32J110-B/-C/SK-M32J9553-A) as well as under waterborne basecoats (ESK-M62J26-A/SK-M32J9553-A). They are suitable for electrostatic and pneumatic spray application. 3. REQUIREMENTS 3.0 STANDARD REQUIREMENT
5、S FOR PRODUCTION MATERIALS Material suppliers and part producers must conform to the Companys Standard Requirements For Production Materials (WSS-M99P1111-A). 3.3 COMPOSITION 3.3.1 Vehicle Modified Polyester resins with cross-linkable functions, Aminoplast resins, blocked Isocyanates. The properties
6、 of the primer are determined by Urethane groups. 3.3.2 Pigments Inert pigments and fillers to obtain the desired color and properties. The use of non-inert pigments and fillers, i.e. zinc oxide, zinc sulfide or calcium carbonate is not permitted. 3.3.3 Non volatile at spray viscosity (FLTM BI 102-0
7、1, FC#3 at 25 C) ESK-M6J151-A (determined at 50 +/- 2 s): min. 60% ESK-M6J151-A2 (determined at 67 +/- 2 s): min. 64% Colored primers (determined at 67 +/- 2 s): ESK-M6J151-A3: grey: min. 64 - 66% (e.g. light grey, mid grey) inorganic pigmented chromatic colors: min. 62 - 64% ENGINEERING MATERIAL SP
8、ECIFICATION ESK-M6J151-A/A2/A3 Printed copies are uncontrolled Copyright 2008, Ford Global Technologies, LLC Page 2 of 5 black and dark colors: min. 57 - 59% (e.g. dark blue, anthracit) light colors: min. 56 - 58% (e.g. light red) 3.3.4 Viscosity as delivered see Initial Sample +/- 5 s (FLTM BI 111-
9、01) 3.3.5 Density see Initial Sample +/- 0.05 g/mL (ASTM D 1475) 3.3.6 Flashpoint, min. 21 C (ASTM D 56) 3.3.7 Storage Stability, min. 16 h (FLTM BI 102-03) No settling and no increase of viscosity more than 15 s for material as supplied. 3.4 PREPARATION OF TEST PANELS (FLTM BI 103-02, Method B,b) 3
10、.4.1 Spray Viscosity as specified by the supplier (FLTM BI 111-01, FC# 3 at 25 C) The primer shall be reduced with Xylene (S-M14J245-A) or with Thinner (S-M14J210-A). 3.4.2 Substrate Baked EC SK-M64J9554-C/D or WSK-M64J29-C as used in the plant. 3.4.3 Baking conditions (metal temperature) 5 minutes
11、165 C; additional for investigations: 5 minutes 190 C. 3.4.4 Top Coat metallic: S-M32J110-B/-C or ESK-M62J26-A in combination with SK-M32J9553-A; solid color: SK-M98J9552-A. Note: For performance investigations, silver metallic or dark metallic as well as black or white top coat shall be used while
12、visual appearance investigations of colored primers shall be performed with color-coordinated top coats as specified by Engineering. Baking conditions (metal temperature): 10 minutes 130 C and; 10 minutes 120 C 3.4.5 Ageing 72 h The Test Panels have to be aged for 72 h at room temperature prior to t
13、esting. ENGINEERING MATERIAL SPECIFICATION ESK-M6J151-A/A2/A3 Printed copies are uncontrolled Copyright 2008, Ford Global Technologies, LLC Page 3 of 5 3.5 FILM PROPERTIES 3.5.1 Film Thickness, not sanded 30 - 35 micrometre (FLTM BI 117-01) 3.5.2 Color ESK-M6J151-A/-A2: light grey to grey ESK-M6J151
14、-A3: visual conformation with the Initial Sample within acceptable tolerance. 3.5.3 Gloss 75 - 85% (FLTM BI 110-01, 60) 3.5.4 Leveling The primer must show maximum surface quality after baking without any structure or run tendency when applied in a dry film thickness of 35 micrometre. 3.5.5 Sanding
15、After baking the primer must be water sandable (P400) or dry sandable (P800) by hand without clogging (Spot repair). 3.5.6 Hold-Out There shall be no evidence of dulling or strike in or difference in gloss when the topcoat is applied over sanded and unsanded primer. Sanding scratches shall be hardly
16、 visible. 3.6 RESISTANCE PROPERTIES 3.6.1 Adhesion No chipping (FLTM BI 106-01, Method B) 3.6.2 Chip Resistance, max. 1 (FLTM EU-BI 007-01) 3.6.3 Stone Chip Resistance (FLTM EU-BI 057-02), max. 0,5 (FLTM BI 157-04), max. 3 3.6.4 Salt Spray Resistance, min. 240 h (FLTM BI 103-01) No blistering and no
17、 rust on the panel surface and no more than 3 mm rust creepage and loss of adhesion from a scratch scribed to the bare metal. 3.6.5 Water Immersion Test, min. 480 h (FLTM BI 104-01) No loss of adhesion, no loss of gloss and no blistering accepted. ENGINEERING MATERIAL SPECIFICATION ESK-M6J151-A/A2/A
18、3 Printed copies are uncontrolled Copyright 2008, Ford Global Technologies, LLC Page 4 of 5 3.6.6 Florida-Exposure 12 months (FLTM BI 160-01) Test panels (Two coat metallic, silver and solid color, white) shall be exposed in the area of Miami, Florida, 5 facing south. After the exposure the surface
19、shall show neither blistering not peeling nor any other defects caused by the primer. 3.6.6.1 Water Immersion Test, 24 h No blistering (FLTM BI 104-01) Panels shall be tested after evaluation 3.6.6. 3.6.6.2 Adhesion No chipping (FLTM BI 106-01, Method B) Adhesion shall be tested 24 h after test 3.6.
20、6.1. 3.7 PEELING RESISTANCE Current product Clear coat 12 months Production Clear coat without UV-Absorber 3 months Primed panels are painted with clear coat (SK-M32J9553-A and SK-M32J9553-A but not UV-stabilized) according to the Peeling Test. Dry film thickness 30 - 35 micrometre. The panels shall
21、 be exposed in the area of Miami/Florida 5 facing south. For 3 months exposure time, the exposure shall be started from April to June and end latest in September. After the exposure the surface shall show neither blistering nor peeling nor any other defects caused by the primer. 3.7.1 Water Immersio
22、n Test, 24 h No blistering (FLTM BI 104-01) Test shall be performed after evaluation 3.7. 3.7.2 Adhesion No chipping (FLTM BI 106-01, Method B) Adhesion shall be tested 24 h after test 3.7.1. 3.8 COMPATIBILITY The primer must be adaptable for application in accordance with the appropriate Ford Motor
23、 Company Process Specification. The primer must be compatible with all related materials, e.g. current production PVC-materials, sealers, etc. All primers shall be compatible for wet on wet application with primers of other colour from the same supplier. All primers from the same supplier shall be m
24、iscible. ENGINEERING MATERIAL SPECIFICATION ESK-M6J151-A/A2/A3 Printed copies are uncontrolled Copyright 2008, Ford Global Technologies, LLC Page 5 of 5 5. GENERAL INFORMATION The information given below is provided for clarification and assistance in meeting the requirements of these specifications
25、. 5.1 STORAGE STABILITY 3 months During a storage of 3 months at Room Temperature (18 - 25 C) the material as supplied shall not settle up or cake insoluble. Viscosity shall not rise more than 15 s. 5.2 DRY HIDING POWER see Initial Sample (FLTM BI 158-01) The dry hiding power shall be reported in the Initial Sample Report.
