Last Preservative(used to be ? is? ) made up of trifluor-trichlor-ethylane. This stuff was used for spectography in the med. professions and could be bought in bulk. It worked just as well as the original Last factory concoction for a much cheaper price. I've stopped using it, because it is harmful to the atmosphere and I suppose that Last has changed its prescription as well for the self same reason. I also had used it for well over 15 years on many thousands of LPs.
