I started using Future Floor Finish, an acrylic liquid, for doing feather inlays. So far I have completed somewhere between 40-50 rods using this material, some that have had a lot of use in the past two years. I also use Rod Smith finish over this to finish the rod and there has been no adverse reaction. I am on my second bottle of the stuff, really cheap compared to preservative, and am very happy with the results. Just wanted to share something that has worked for me.