Modern Masters | Metal Effects® Rust System, Copper & Iron Oxidizing Paints + Rust Activator

Modern Masters Metal Effects reactive finishes use water-based paints containing real metal particles that oxidize over time. Pair the reactive paint with Rust Activator (PA904)—an acidic solution in water—to speed up oxidation and create an authentic rusted appearance on paintable surfaces.

• Real metal particle paints: reactive coatings that tarnish naturally and change over time with exposure.
• Accelerated oxidation option: Rust Activator (PA904) reacts with the metal particles to speed up the oxidation process and create an authentic rust finish.
• Flexible purchasing: buy Copper, Iron, or Activator alone—or choose a bundle for a complete rust-reactive setup.
• System-based use: Oxidizing Iron Paint is intended to be used with Metal Effects Primer, Rust Activator, and Permacoat Xtreme.
• Gallon-only availability: all options on this page are sold in gallon sizes only.

• Apply the reactive metal paint to a properly prepared, paintable surface.
• For accelerated rusting, apply Rust Activator (PA904) over the reactive paint to speed oxidation and develop a rust finish.
• Because reactive finishes vary, test a small area first to confirm the look you want.

• Can I buy the activator by itself?
  Yes. Rust Activator (PA904) is available as a standalone gallon.
• What does Rust Activator do?
  It’s an acidic solution in water that reacts with real metal particles in the paint to speed oxidation and create a rust finish.
• Are all options sold in the same size?
  Yes. On this page, Copper, Iron (ME208), and Rust Activator (PA904) are all sold in gallons only.
• Do I need anything else for the Iron system?
  Oxidizing Iron Paint is intended to be used with Metal Effects Primer, Rust Activator, and Permacoat Xtreme.