How Long Does Wood Filler Take To Dry. Shallow repairs involving wood filler will only take 15 minutes to two hours to dry in most cases. This means your application needs to be fast, so it does not harden before you complete the application.

Deeper fills can take as long as six hours before they are fully affixed to the wood. Along with dry time, the cure time will take additional hours. It also means you do not have to spend a lot of time waiting before you can paint or.