Rust-Oleum 9100 System 340VOC DTM Epoxy Mastic Navy Gray Versatile epoxy system is perfect for Direct-To-Metal (DTM), direct-to-tightly adhered rust, concrete floors, pools and more. A high solids, next generation polyamine converted epoxy. Minimizes prep Apply Direct-To-Metal and tightly adhered rust. Self-priming, single coat provides service life equal to multiple coats of competitive epoxy. Maximum corrosion protection. Superior long-term solvent, chemical and abrasion resistance. Outstanding impact resistance. Convenient 1:1 mixing ratio of base and activator. Versatile base formula Works with all activators (Standard, Immersion, Low Temp or Fast Cure) at VOC 340 g/l or 250 g/l