Sometimes, many putty scars will appear on the bright and smooth paint film. The reason is that the residual putty on the white blank has not been polished clean when doing the clear water work with exposed wood grain. The putty-embedded surface absorbs color and oil differently from the non-putty-embedded surface, and "putty scars" will appear after painting. There are oil stains, turpentine scars, and glue marks on the surface of the substrate, and scars will also appear after oiling.
Prevention method: Before oiling wood products, it is necessary to fill a batch of putty or oiling powder, and must not be partially patched; when sanding, the remaining putty must be sanded to expose the wood grain; when the bottom layer is treated, be sure to put Oil stains, turpentine, and glue marks are removed.
