Dec 27, 2020 · This Elmer's wood filler is to be used indoor for any issues, defects and holes in wood. Like those Elmer's glue sticks your kids use on crafts, it starts out purple, but dries white so that you know it's ready to stain, sand or paint. It doesn't shrink or crack either, which is a must-have in stainable wood filler. ONce you prime the wood, you can use wood filler or even spackle to fill any gouges, etc. It might take 2 or 3 applications to get it "flush." Once you have them filled, sand lightly, prime the patches, and, then you can apply your topcoats. A nice tool to use to fill gouges is a PLASTIC putty knife, the kind you find in dollar stores. BEST FOR BIG JOBS: FamoWood 40022126 Latex Wood Filler If you only keep one wood filler on hand, this FamoWood product is a worthy option. This latex wood filler has the versatility and viscosity ... Interior/exterior use; FAMOWOOD Original Wood Filler has been the choice of professional woodworkers for over 70 years! It doesn't matter whether you are masking small or large defects, FAMOWOOD can handle the job. It spreads smoothly into cracks. Perfect for any type of custom wood project.