1、 ENGINEERING MATERIAL SPECIFICATION Date Release No. Revision Rev. 2 2011 07 13 Revised Odor Requirements added W. Janitschke, EU 1993 02 01 EP00E10258804000 Revised A 3.9, released A2, A3, A4 W.Scholz 1987-12-18 SM/EQ1579 TP Release Controlled document at www.MATS Copyright 2011, Ford Global Techno
2、logies, LLC Page 1 of 6 SEALER, PVC, PRIMER OVEN CURING, PAINTABLE ESK-M4G297-A SEALER, PVC, PRIMER OVEN CURING, PAINTABLE ESK-M4G297-A2 SEALER, PVC, PRIMER OVEN CURING, PAINTABLE ESK-M4G297-A3 SEALER, PVC, PRIMER OVEN CURING, PAINTABLE ESK-M4G297-A4 1. SCOPE The material defined by this specificati
3、on is a solvent release, heat curing, stone peck resistant PVC sealer for exterior body areas. 2. APPLICATION This specification was release originally for material used as a stone peck protective coating for wheel house lip. The material is applied by a foam roller or airless spray on baked electro
4、coat in a wet film thickness of approx. 160 - 320 micrometer wet on wet with spray primer. 3. REQUIREMENTS 3.1 STANDARD REQUIREMENTS FOR PRODUCTION MATERIALS Material suppliers and part producers must conform to the Companys Standard Requirements For Production Materials (WSS-M99P1111-A). 3.2 TEST P
5、ANEL PREPARATION Use 300 x 100 x 0.8 - 0.9 mm E-coated test panels according to FLTM BI 120-01. The sealer must be applied on the cured E-coated test panel within 30 minutes after oven curing. 3.3 COLOR grey 3.4 SOLIDS 97.0 min (FLTM BV 150-10) 3.5 ASH 28.0 max (FLTM BV 150-10) 3.6 FLASH POINT 100 C
6、 min (ASTM D 93, Method A) Note: In case testing at higher temperatures is not feasible because of gelling of test material, the supplier must certify in writing that each separate volatile ingredient has a flash point above 100 C. ENGINEERING MATERIAL SPECIFICATION ESK-M4G297-A/A2/A3/A4 Copyright 2
7、011, Ford Global Technologies, LLC Page 2 of 6 3.7 DENSITY AT 20 C 1.29 g/cm3 max (ASTM D 1475) 3.8 VISCOSITY AT 20 C (Brookfield viscometer type RVT/D, No. 6 spindle) Test Method 1. Condition material under test to 20 C. 2. Stir material for 1 min by spatula. 3. Let the material rest for 30 min. 4.
8、 Insert spindle into material and start measuring with undisturbed material at a frequency of 2.5/min; measuring time 3 min. 5. Continue measuring in the same way at frequencies of 5.0/min and 10.0/min. 3.8.1 As received, Pas +/- 10% A A2 A3 A4 at 2.5/min 25.0 60.0 100.0 130.0 at 5.0/min 19.0 40.0 6
9、0.0 80.0 at 10.0/min 15.0 30.0 40.0 5.0 3.8.2 After Aging, Pas +/- 20 % (120 h at 35 +/- 2 C) at 2,5/min 33.0 75.0 140.0 220.0 at 5,0/min 26.0 55.0 85.0 130.0 at 10,0/min 21.0 40.0 65.0 100.0 3.9 SURFACE CONDITION AFTER AGING The material shall be dry to the touch after cooling to 23 +/- 2 C. It sha
10、ll be free from cracks or bubbles and shall show a uniform closed paint film without staining or discolouration. After bending 90 deg around a mandrel of 100 mm dia. within 2 s (see FLTM BV 153-4) there shall be no evidence of chipping or loss of adhesion between the various layers. Test Method 1. T
11、est panels per para 3.2., shall be coated with the material under test in such a manner (template 30 mm wide) that after curing a dry coating thickness of 150 - 300 micrometer is obtained. 2. After 10 min at 23 +/- 2 C, coat specimens wet on wet with production epoxy spray primer, to a dry film thic
12、kness of 25 - 35 micrometer. 3. After 10 min at 23 +/- 2 C, cure specimens separately according to FLTM BV 150-5, for each applicable region: a) Min. Curing Cycle b) Max. Curing Cycle. 4. After 10 min at 23 +/- 2 C, spray separate specimens with light colored standard and metallic top coat enamel to
13、 a coating thickness of 30 - 40 micrometer. 5. After 10 min at 23 +/- 2 C, cure specimens separately according to FLTM BV 150-5, for each applicable region: a) Min. Curing Cycle b) Max. Curing Cycle.ENGINEERING MATERIAL SPECIFICATION ESK-M4G297-A/A2/A3/A4 Copyright 2011, Ford Global Technologies, LL
14、C Page 3 of 6 6. Condition for 2 h at 23 +/- 2 C and expose in mechanical convection oven maintained at 80 +/- 2 C for 120 h. 7. Test and examine after 24 h at 23 +/- 2 C. 3.10 FLEXIBILITY AFTER AGING No cracking, no (FLTM BV 153-2, Method C, except test chipping or loss of panels per 3.2., dry coat
15、ing thickness adhesion 160 - 300 micrometer, curing cycle table 2, 2 h at 23 +/- 2 C, mandrel dia. 100 mm) 3.11 ADHESION AFTER HEAT AGING No cracking, no (FLTM BV 153-3, Method B, except test chipping or loss of panels per 3.2., dry coat thickness 160 - 300 micrometer adhesion 14 d aging at 80 +/- 2
16、 C, 2 h at 23 +/- 2 C, mandrel dia. 100 mm) 3.12 ADHESION The material at all ranges of coating thickness must not be peeled-off in a coherent film. Test Method 1. Coat test panels from para 3.2. so that after the: (a) min curing cycle, (b) max curing cycle according to FLTM BV 150-5, T for each app
17、licable region, a dry coating thickness of 0.5 mm beginning at one edge of the test panel and tapering to zero at the other is obtained. 2. After 24 h at 23 +/- 2 C make two cuts through the coating along the 300 mm length of the test panel and 20 mm apart and try to peel-off coating starting at the
18、 edge with the lowest film thickness. 3.13 ABRASION RESISTANCE There shall be no exposed metal area showing after a) 100 Liter b) 250 Liter gravel impact. No loss of adhesion on and around the area of stone impact. Test Method 1. Test panels (para 3.2.) shall be coated with the material under test i
19、n such a manner (template or foam roller) that after curing a dry coating thickness of 1) 160 - 200, b) 300 - 350 micrometre is obtained. 2. After 10 min at 23 +/- 2 C cure test specimens separately, according to FLTM BV 150-5, for each applicable region: a) min. curing cycle. b) max. curing cycle.
20、3. Condition for 2 h at 23 +/- 2 C and expose in mechanical convection oven maintained at 70 +/- 2 C for 120 hours. 4. After conditioning for 24 h at 23 +/- 2 C determine the abrasion resistance according to ASTM D 968, except I.D. of tube 25 mm and at a gravel throughput rate of 30 - 40 Litres/h. F
21、or each specimen a 5 Litres volume of fresh gravel shall be used. 5. Check for abrasion resistance and loss of adhesion after a) 100 Litre (dry coating thickness of 160 - 200 micrometer) b) 250 Litre (dry coating thickness of 300 - 350 micrometer) ENGINEERING MATERIAL SPECIFICATION ESK-M4G297-A/A2/A
22、3/A4 Copyright 2011, Ford Global Technologies, LLC Page 4 of 6 gravel impact. Continue abrasion test until exposure of metal area and again check for loss of adhesion. Gravel: Type “GABBRO“ grain size 5-8 mm Supply Source: ODENWALDER HARTSTEIN INDUSTRIE GMBH Erbacher Str. 62 D - 6101 Rossdorf 3.14 C
23、ORROSION RESISTANCE The material shall protect the test panel from corrosion for a salt spray exposure period of 500 hours. It shall show no expansion, flaking or loss of abrasion resistance. No loss of adhesion on and around the area of stone impact. Test Method 1. Prepare test specimens in accorda
24、nce with para 3.13, sections 1-3. 2. After conditioning for 24 hours at 23 +/- 2 C expose specimens for 500 hours to a salt spray fog according to ASTM B 117. 3. After conditioning for 72 h at 23 +/- 2 C determine abrasion resistance as specified under para 3.13 and examine test panels for evidence
25、of corrosion. Disregard the area 5 mm from the edges. 3.15 FLOW RATE 2 mm max (FLTM BV 153-1, Method A, except test panel per para 3.2., wet film thickness 280-300 micrometer, template 30 mm width, 270 mm length of sealer bead, 30 min at 120 +/- 2 C). 3.16 COMPATIBILITY WITH PRODUCTION PAINTS No tac
26、kiness of material surface, no cracking or blistering. The paint shall cover the sealer satisfactorily without evidence of discolouration or staining. 3.16.1 Wetability and Staining Test Method 1. Specimens preparation according to clause 3.13, test method, section 1, test material width 30-35 mm. 2
27、. Proceed as outlined under FLTM BV 153-8, Method A, section 2-6, except use lightest and darkest solid colour and metallic basecoat/clearcoat. 3. After 72 h at 23 +/- 2 C mask one half of the sealer ribbon and expose for 240 h in the Fluorescent Sunlamp Cabinet (FLTM EU-BU 52-2). ENGINEERING MATERI
28、AL SPECIFICATION ESK-M4G297-A/A2/A3/A4 Copyright 2011, Ford Global Technologies, LLC Page 5 of 6 3.16.2 Determination of Discoloration after Aging None Test Method 1. Specimens preparation according to 3.16.1, section 1 and 2. 2. After 24 h at 23 +/- 2 C store separate assemblies in the darkness for
29、 240 h at 40 +/- 2 C in a mechanical convection oven. 3.16.3 Determination of Yellowing None (FLTM BV 153-12) 3.16.4 Resistance to Weathering No discoloration Test Method 1. Specimens preparation according to 3.16.1, section 1 and 2. 2. Expose test specimens in the Miami/Florida area for 6 months an
30、d 1 year at 5 deg to the south. 3. Prior to examination clean specimens using soap and water. 3.17 TEMPERATURE CYCLING TEST No chipping, no flaking, no loss of Test Method adhesion 1. Specimens preparation according to clause 3.16.1, test method, section 1 and 2. 2. After conditioning 72 h at 23 +/-
31、 2C expose specimens three times to the following cycle. 3 h at 80 +/- 2 C 1 h at 23 +/- 2 C 3 h at -40 +/- 1 C 1 h at 23 +/- 2 C 16 h at 38 +/- 2 C and 98 +/- 2 % RH 3. After 24 h at 23 +/- 2 C bend 90 deg around a mandrel of 100 mm dia. within 2 s (FLTM BV 153-4). 3.18 ABRASIVES The material shall
32、 contain no abrasive agents. Test Method Dilute a one gram sample of material under test with three gram toluene and mix thoroughly. Rub a portion of the diluted material approx. 10 times between two pieces of flat, clean plate glass. The appearance of scratches on the glass plates shall be consider
33、ed failure. 3.19 SPRAYABILITY The material shall be a smooth homogeneous mixture, free from foreign material and suitable for use in airless spray equipment. It shall spray evenly and rapidly with no tip clogging or fluctuations in the spray pattern and with a minimum spray back and fogging. ENGINEE
34、RING MATERIAL SPECIFICATION ESK-M4G297-A/A2/A3/A4 Copyright 2011, Ford Global Technologies, LLC Page 6 of 6 3.20 QUALITY The material shall be of uniform quality, free from foreign material and properties detrimental to normal production use. 3.21 ODOR Rating 3 max (FLTM BO 131-03, cured material pe
35、r min cycle as in FLTM BV 150-05, for the individual region, for interior application only) 4. GENERAL INFORMATION This information given below is provided for clarification and assistance in meeting the requirements of this specification. Contact for questions concerning Engineering Material Speci
36、fications. 4.1 STORAGE STABILITY (from date of receipt at Ford Motor Company) The material must be stable for 3 month, when stored in sealed unopened drums out of direct sunlight at ambient temperatures between 5 C and 32 C. 5. SUMMARY OF REVISIONS 2011 07 13 Added Odor Requirement. Editorial changes for clarification.
