
Yuck, whats know as "cut back", tar like glue. Googled it, All kinds of advice. Do Not Sand it! Might contain asphatis. Water method and scraping is tearing up the fir floor boards and not getting it all up. Everything is so labor intensive. I'd like to embed it under paint. I will experiment with oil base floor paint and oil base primer/ stain block. Floor may have a texture , cool with me. I only want a sealed color, RED. After all that effort to expose old floor boards by removing old flooring, staples etc i hope i can make this work. Both bathroom and kitchen depend on it.