FORD FLTM BV 130-1-2000 SEALER FUME TEST - EFFECT OF SEALER FUMES ON PAINT ADHESION.pdf

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1、 FORD LABORATORY TEST METHOD BV 130-01 Date Action Revisions 2000 12 11 Revised Editorial no technical change A. Cockman 1998 09 01 Printed copies are uncontrolled Page 1 of 4 Copyright 2000, Ford Global Technologies, Inc. SEALER FUME TEST - EFFECT OF SEALER FUMES ON PAINT ADHESION Application This

2、procedure is used to determine the effect of fumes from sealers during primer oven bake and topcoat repaint on the adhesion properties of subsequent paint applications. Apparatus Required Mechanical Convection Oven The oven must be capable of maintaining a temperature of 165 +/- 2 C or as specified

3、by the applicable Engineering Material Specification. Materials Required Test Panels Electrocoated G60 Galvanized or CRLC Steel panels: 300 x 100 mm. Prepared in accordance to FLTM BI 120-01 or as specified by the responsible Engineering activity. Paint Can 1/2 liter with opening such that Test Pane

4、l width can completely cover opening. Aluminum Foil Glass Reinforced Adhesi ve Tape 3M Scotch, Pressure Sensitive Filament, No. 898, 25 mm wide. Use only No. 898 tape manufactured in the U.S.A. Store in the original package in a dry, dark location. NOTE: Use adhesion tape before its expiration date.

5、 Conditioning and Test Conditions All test values indicated herein are based on material conditioned in a controlled atmosphere of 23 +/- 2 C and 50 +/- 5 % relative humidity for not less than 24 h prior to testing and tested under the same conditions unless otherwise specified. FORD LABORATORY TEST

6、 METHOD BV130-01 Page 2 of 4 Copyright 2000, Ford Global Technologies, Inc. Procedure A - Sealer Fumes During Primer Bake 1. Spread out 10 - 12 g of the specified sealer on the inside bottom of 1/2 liter can so that entire bottom of can is covered with sealer. 2. Cover can with aluminum foil. 3. Pre

7、-gel sealer in can at 121 C for seven minutes. Allow to cool for 20 minutes at 23 C. 4. Apply primer as specified by the responsible Engineering activity to electrocoated test panel. Remove aluminum foil from can and place primed panel (wet side down) over can opening leaving a 13 mm gap between top

8、 of can and panel face. See Figure 1. 5. Bake primed panel/can assembly (Figure 1) at 163 C for 23 minutes metal temperature. 6. Remove test panel from can and condition. 7. Paint test panel with topcoat as specified by the responsible Engineering activity. Bake panel at minimum supplier recommended

9、 temperature. 8. Repeat steps 1 - 7 except bake topcoat panel at maximum supplier recommended time and temperature. 9. Condition panels for 4 - 24 h at 23 C. 10. Perform cross-hatch paint adhesion test (FLTM BI 106-01, Method B) on an area of the test panel exposed and not exposed to sealer fumes an

10、d record results. Report results as required in FLTM BI 106-01. Procedure B - Sealer Fumes During Topcoat Repaint 1. Apply primer as specified by the responsible Engineering activity to electrocoated test panel. Bake primed panel at 163 C for 23 minutes metal temperature. 2. Spread out 10 - 12 g of

11、the specified sealer on the inside bottom of 1/2 liter can so that entire bottom of can is covered with sealer. 3. Cover can with aluminum foil. 4. Pre-gel sealer in can at 121 C for seven minutes. Allow to cool for 20 minutes at 23 C. 5. Apply topcoat as specified by the responsible Engineering act

12、ivity to primed test panel. Remove aluminum foil from can and place topcoated panel (wet side down) over can opening leaving a 13 m gap between top of can and panel face. See Figure 1. FORD LABORATORY TEST METHOD BV130-01 Page 3 of 4 Copyright 2000, Ford Global Technologies, Inc. 6. Bake topcoated p

13、anel/can assembly (Figure 1) at minimum supplier recommended time and temperature. 7. Remove test panel from can and condition for 20 minutes at 23 C. 8. Repeat steps 1 - 7 except bake topcoated panel at maximum supplier recommended time and temperature. 9. Reapply topcoat and bake at minimum suppli

14、er recommended time and temperature on both test panels to simulate repaint/repair conditions. 10. Condition panels for 4 - 24 h at 23 C. 11. Perform cross-hatch paint adhesion test (FLTM BI 106-01, Method B) on an area of the test panel exposed and not exposed to sealer fumes and record results. Re

15、port results as required in FLTM BI 106-01. Chemicals, materials, parts, and equipment referenced in this document must be used and handled properly. Each party is responsible for determining proper use and handling in its facilities. FORD LABORATORY TEST METHOD BV130-01 Page 4 of 4 Copyright 2000, Ford Global Technologies, Inc. SEALER FUME TEST - EFFECT OF SEALER FUMES ON PAINT ADHESION Figure 1 Test Panel/Can Assembly