RectorSeal® Tru-Blu™ pipe thread sealant with PTFE is a fast-dry, flexible set thread sealant designed for high vibration environments such as refrigeration and industrial applications. PTFE has been added to enhance thread lubrication during assembly and break out. Recommended for use on threaded galvanized steel, iron, brass, copper, aluminum, stainless steel, polyethylene, fiberglass reinforced, PVC. Great for use as a positive lock and seal on threaded fasteners. Certified to NSF/ANSI 61-G.• Size: 1.75 ounce• Fast drying• Adhesive thread sealant• With PTFE• For high vibration environments such as refrigeration and industrial applications• Designed for sealing vibration prone npt connections• Recommended for galvanized steel, iron, brass, copper, aluminum, stainless steel, PVC, polyethylene and reinforced fiberglass.Additional Info:RectorSeal® Tru-Blu™ is a fast drying, adhesive thread sealant. It is especially suited for high vibration environments such as refrigeration or compressor applications. It contains PTFE for better thread sealing and for lubrication to facilitate easy break-out. It is also great for use as a positive lock and seal on threaded fasteners.• Stays flexible - designed for areas of high vibration and thermal expansion/contraction• Brushable from 20 degree F to 140 degree F• Contains PTFE• Excellent as a gasket adhesive on flanges• For use with water (hot or cold)• Low odor, non-separating• Lead free and contains no metal• Lubricates and protects threads• Easy application - brush top applicator.Applications:• RectorSeal® Tru-Blu™ is recommended for pipe made of galvanized steel, iron, brass, copper, aluminum, stainless steel, PVC, CPVC, polyethylene, and reinforced fiberglass.RectorSeal® Tru-Blu™ is recommended for pipe carrying:• Acids, Dilute• Diesel Fuel Oil• Mineral Oils• Air, Compressed• Freons (All)• Natural Gas• Ammonia- Gaseous• Gasoline (leaded unleaded)• Nitrogen, Gaseous• Aliphatic Solvents• Heating Oils• Petroleum Solvents• Brine• Hydraulic Oils• Refrigeration Oil• Carbon Dioxide, gaseous• Inert Gases• Steam• Caustics, Dilute• Jet Fuel (JP3, 4, 5)• Sugar, Liquid• Cutting Oils• Kerosene• Water (hot or cold)• Manufactured Gases• Water gas• Not recommended for oxygen.