Are you tired of unsightly gaps between installed wooden boards? Try our Final Touch Trowel Filler as it was specially developed for filling large areas to create a smooth flat surface that symbolizes true craftsmanship. Application is simple and easy whether using a squeegee or trowel as our filler neither clogs sand paper nor has to be reconstituted during use! It comes ready to use straight out of the container and is ready to sand in 20 minutes, depending on the temperature.