T-9 Rust Protectant, 12 Ounce Spray, was developed by Boeing Aviation for long term metal protection on aircrafts. A solvent and paraffin wax formula, it penetrates into metal pores, displaces moisture and dries to a thin film that will protect your woodworking equipment for months. Since it contains no silicones or Teflon and dries completely within a few minutes, it will not transfer to wood surfaces or interfere with subsequent finishing. The 12 oz. non-fluorocarbon spray is ozone safe.