An essential part of your pre paint routine is to test the dew point at the place of application and measure the temperature of the steel to be painted. By a rule of thumb the steel to be painted should be 5 degrees C above the dew point measurement. leaving the magnetic guage in place on the steel will give you an indication of the steels temperature during the day. This linked with dew point measurements taken using item 007 will ensure that there is no moisture between you substrate and applied coating.Ignoring the dew point will lead to coating failure.
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