I am building a kit guitar, I am trying to find out what type of wood fillers I should use. The body is Basswood, I was told that can use DAP Plastic Wood filler, because the wood is soft and the filler will help from getting damages/dents. Help please.
No you don't want to cover it in wood filler. Wood filler should be avoided unless absolutely necessary (i.e covering mistakes). Grain filling is different but you wont need to on Basswood. If you want to give the guitar some extra protection use a hard finish.