HARD HAT® RUST RESISTANT PRIMER - Can be painted over within 1 hour or after 48 hours, tack-free after 30 minutes - For new or slightly rusty surfaces - Penetrates deep into the surface and gives rust no chance - Lead and chromate-free RUST-OLEUM® Hard Hat Aerosol Primers 2169/2182 are fast-drying primers based on a lean soy oil alkyd resin. These products contain rust-resistant pigments and are lead and chromate free.