Reply by Planeman40

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Posted on Lacquer

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1273 posts in 2933 days

#1 posted 11-24-2012 03:43 PM

One problem with lacquer:

If you use a fast drying lacquer in humid conditions it can “blush”. Blushing is a transparent milky white film that forms on the lacquer surface when the fast evaporating solvent chills the surface of the just applied lacquer and the humid air condenses on it. Think of dew forming on a lawn. Its the same process.

This can be prevented by adding a “retarder” to the solvent (lacquer thinner) that slows the evaporation. It can also be remedied once it has happened by waiting until a drier day and applying another coat or brushing or spraying lacquer thinner on the dried lacquer.

I would expect that Deft has been formulated to include a slower evaporating solvent. However other lacquers you may encounter may not be formulated this way.


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