FORD FLTM BI 125-1-2001 TEST FOR SILICONE CONTAMINATION OF PAINT SYSTEMS.pdf

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1、 FORD LABORATORY TEST METHOD BI 125-01 Date Action Revisions 2001 03 20 Revised Editorial no technical change A. Cockman 1996 05 07 Printed copies are uncontrolled Page 1 of 2 Copyright 2001, Ford Global Technologies, Inc. TEST FOR SILICONE CONTAMINATION OF PAINT SYSTEMS Application This method is u

2、sed to test for airborne contamination in paint systems such as silicone aerosol lubricants and release agents whose vapor can be emitted into the atmosphere. Paint systems and related materials must be tested as detailed below to ensure that their airborne media do not interfere with final paint qu

3、ality finish. No component of any equipment, material, or facility which is used in any painting or pretreatment process shall, at any stage of manufacture or assembly, come into contact with lubricants containing free silicone or other surfactants which could cause paint damage or craters. Conditio

4、ning 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. Procedure 1. Prepare two prim

5、ed test panels in accordance with BI 103-02 Method E. One panel to be used for control purposes, and the other panel for simulated contamination tests. Note: When applicable, this test may also be used for primed plastic parts. 2. Stove and age the panels as described in the appropriate materials sp

6、ecification. 3. Prepare a solvent extract sample from the non-production item, using an appropriate solvent, e.g. cyclohexane. Evaporate sample to approximately half of the original volume. 4. Apply contaminated solvent extract sample to the test panel using a pipette. 5. Apply uncontaminated solven

7、t sample to control panel using a pipette. COPYRIGHT Ford Motor CompanyLicensed by Information Handling ServicesFORD LABORATORY TEST METHOD BI 125-01 Page 2 of 2 Copyright 2001, Ford Global Technologies, Inc. 6. Leave panels for five minutes in a horizontal position. Air dry both test panels using a

8、 hot air fan for one minute or until completely dried. 7. Fix the two test panels in the vertical position in a paint spray booth. Apply air-drying repair enamel (WSK-M4J209-A) by aerosol to both panels, from a distance of 300 mm to obtain a 0 to 15 micron dry film thickness wedge. Evaluation 1. Exa

9、mine each panel in both wet and dried condition for crater formation or other paint defect. 2. Report on any paint defects observed. 3. Infrared Analysis: Run an infrared trace on solvent extract sample (from para 3 of procedure), and interpret spectra for presence of silicone or other contaminants

10、known to have detrimental effect on paint films (the infrared curve should be compared with an uncontaminated sample). 4. Paint Equipment and Facilities Requirement: No component of any equipment or facility which is used in conjunction with any painting or pre-treatment process shall, at any stage

11、of manufacture or assembly, come into contact with lubricants containing free-silicone or other surfactants which could cause paint damage. 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. COPYRIGHT Ford Motor CompanyLicensed by Information Handling Services