My builder caulked all of the checks and cracks on my new log home pine logs. He then applied Log Boss a water base stain hoping to cover the caulking which should have not been done in the first place. It did not cover the caulking. He then sanded the caulked areas and re-stained with Duck Back an oil stain. It now shows the sanded spots as light areas. How can you get the caulking out of the cracks and checks? Will corn blasting get it out? HBow costly is it to hand san after blasting. T