White hazing using waterborne finish

Q: I just finished my floor with water based polyurethane. With 3 coats I have some white hazing in some areas.

Is there anyway to correct this? Is it possible to sand just those areas and re-coat?

A: I don’t use water based coating much anymore. I believe this condition is caused by high humidity. I would probably call the manufacturer. They have chemists and should be able to give you better direction as to what to do next. Water based coatings and I don’t really get along. They set so fast it makes them tricky to work with. The one thing that is good about them is that it is easier to do a touch up anywhere and have a better likelihood of it not showing.

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