Hercules 1/2-Pint Real Tuff Thread SealantHercules, 1 2 PT, Real Tuff Thread Sealant, Multi Purpose Thread Sealant Formulated With The Highest Percentage Teflon Content On The Market, Provides Superior Lubricating & Sealing Properties, Leak Free Joints Can Be Tested & Put Into Service Immediately, Holds Tight Against Vibration, Expansion, & Contraction, Brushable, Non Separating, Will Not Run Or Drip From Joints, Soft Set, No Cure Time Required, For Use On Metals, Including Galvanized Steel,