BESTOLIFE White Collar Premium is a versatile, effective, and premium drill collar compound that combines zinc oxide and PTFE to enhance sealing and galling resistance for both new and worn connections. White Collar Premium contains no lead. It resists extreme pressure and wear and is not affected by H2S or other corrosive compounds. APPLICATIONS Zinc/PTFE compound for drill collars. PRODUCT CHARACTERISTICS Color: Light Gray Penetration: 300-320 (ASTM D 217) Weight/Gallon: 11.4 pounds/gallon Dropping Point: ≥350°F (≥177°C) Flash Point: ≥392°F (≥200°C) Brushable To: 10°F (-12°C) Friction Factor: 1.0 (per API RP 7A1) Contains: Zinc oxide, PTFE, and other non-metallic additives