Well I did it and I had to do it again but with some photos for the new members to see. This stuff is amazing. called Oxalic Acid. I added a 12 oz container to about 2 gallons of warm water. I use a plastic fishing net to lower them into the bucket. after a few hours Poof ! clean. But for an example here are the ones going in. that white stuff on the back one is paint. there nasty. it is 7.15 pm centeral time Be back in a few hours. joe

More information about cleaning your insulators can be found at http://www.insulators.info/care/cleaning.htm