How Long Does It Take For Wood Filler To Dry. This means your application needs to be fast, so it does not harden before you complete the application. 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. Wood fillers dry fast and only take 30 minutes to 6 hours to harden. This means your application needs to be fast, so it does not harden before you complete the application.