Alright fellas. I came up against some wood framed, leaded windows today on a first clean. My problem is that whoever painted the frames first didn't treat the knots in the wood. So I've got great big blobs of sap on the frames. I was planning on carving it off with a scraper, but what would you use to clean off the residue? This stuff has the consistancy and look of linseed window putty. Cheers.