Elmer's Carpenter's Color Change Wood Filler dries to a finishing color after going on pink or purple. Natural goes on pink and white goes on purple. When the change occurs, that means your wood is ready to paint, stain or sand. Use it to fix holes, dents, scratches, gouges and any other defects on interior wood surfaces. After the wood filler dries to a natural color, easily stain or paint your wood to make it look just like new.