How Long Does It Take For Wood Filler To Dry. Wood fillers dry fast and only take 30 minutes to 6 hours to harden. It also means you do not have to spend a lot of time waiting before you can paint or.

It also means you do not have to spend a lot of time waiting before you can paint or. Shallow repairs involving wood filler will only take 15 minutes to two hours to dry in most cases. The best way to determine dry times is to look at guidelines for filler packaging.