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The information in this manual does not necessarily represent current practice. It is on this site for archival reference purposes only.
FHWA Field Manual for Bridge Painting Inspection
Painting
Project #___________________
Date:_____________
Inspector:__________________
Environmental Conditions Check the following prior to beginning painting operations
and at 4-hour intervals:
Temperature--------Specification limits______________ Measured_______
Relative humidity-------Specification limit_________ Measured________
Dew Point_____
Steel surface temperature (should be min. of 3°C (5°F ) above dew point)
_____
- Excessive wind not present.___
Application
For spray applications:
- Pot pressure set to provide adequate paint supply to spray gun.___
- Atomization pressure set just high enough to atomize paint . ___
- Proper technique used. ___
For brush, roller, or mitt applications:
- Verify material compatibility. ___
- Proper technique used. ___
For all methods:
- Immediate repair of unsightly runs, drip, and pinholes. ___
- Check wet film thickness. Verify acceptability. ___
- Check dry film thickness. Verify acceptability. ___
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U.S. Department of Transportation
Federal Highway Administration
Research, Development, and Technology
Turner-Fairbank Highway Research Center
6300 Georgetown Pike
McLean, Virginia 22101-2296
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