Over here in UK,in the 80,s/90,s..a whole host of small business,s sprung up,promoting....Dipping painted Pine Kists,Doors,Fire Surrounds,etc,..in a tank of diluted Caustic Soda,...which did the job,...but as it is a corrosiveliquid, it took all the resin out of the wood,and the glues that sometime held these pieces together,and the Yellow Pine ceased to be yellow when it came out....it was more of a dirty grey......as i said in a previous post, i,ve just stripped a Pine Kist,...using a non acidic stripper,..and its still yellow,