Whats the best way to remove a polyurethane varnish?
To some extent it depends upon where you are trying to remove the varnish from. On floors it is easiest to use a drum sander for the majority of the area and then an edge sander around the edges. On other large, flat surfaces belt or orbital sanders may be the best way to go. Of course, there is always the option to hand sand, but that’s hard work, so only to be recommended when all else fails. For more awkwardly shaped areas a paint or varnish stripper may be the only practical option. Really the choice is yours, but there are two things to bare in mind. Sanding makes lots of dust, which needs to be cleaned up before you can go on, and strippers contain chemicals which need to be treated carefully and properly disposed of.
