We are in the process of re-finishing our log home in Ontario Canada. We had a company cob blast the exterior. Unfortunately, the finish on the logs was very hard to get off and the wood came off in chunks in places. We purchased the house about two years ago and we were told the finish may have been a Sikkens product. I am told this is notoriously hard to remove. We have had to grind down the logs with sanding discs to even out the surface and remove some of the finish that didn’t come off. Is