I AM TRYING TO FILL SOME DAMAGED AREAS IN MY WOOD EXTERIOR WALL,SHIPLAP SIDING.ON MORE THAN ONE HOME IMPROVEMENT SHOW I HAVE SEEN A WOOD FILLER USED THAT WAS MIXED 50/50,ALMOST LOOKED LIKE PLAYDOUGH.HAD TO WEAR GLOVES AS NOT TO STICK TO HANDS.NOT BONDO.WHAT IS THIS STUFF??? STEVE