Experience Counts!   LineBacker® Zero, 250 and 251 Sealing Gasket Suggested Material Compatibility Media LineBacker® Zero™ LineBacker® 250™ LineBacker® 251™ Ammonia R R R Ammonium Hydroxide F F R Benzene R R R Butane NT NT R Calcium Hydroxide U U R Crude Oil R R R Dilute Acids R R R Dilute Caustics U R R Ethanol NR NR R Gasoline R R R Hydrocholric Acid 20% R R R Hydrogen NT NT R Hydrogen Sulfide NT NT R Jet Fuel R R R Kerosene R R R Methanol R R R Naptha R R R Natural Gas R R R Nitric Acid 10% U U R Nitric Acid 20% U U F Potable Water NR NR R Propane R R R Salt Brine R R R Sea Water R R R Sewage R R R Steam to 350º F U R U Steam Condensate to 250º F U R F Sulfuric Acid 10% U U R Tolulene F F R R = Resistant NR = Not Recommended F = Fair U = Unsatisfactory NT = Not Tested General Notes: The foregoing performance data are intended as guidelines only. Performance suitability for any specific applications should be determined by the user. Variation in temperature, pressure, concentration or mixtures acting synergistically may preclude suggested service use. Material selection is at the sole risk of the user. Consult with a specialist or PSI factory for specific applications. PSI's responsibilities will be limited to those listed in the PSI standard warranties.