Corroseal Water-Based Rust Converter & Metal Primer — 1 qt, Non-Flammable Latex Primer for Iron/Steel

Corroseal 82320 is a water-based rust converter and latex metal primer that chemically transforms rust into a stable, paintable surface in one simple step.

Corroseal 82320 is formulated to save time and labor when treating rusty iron and steel. Instead of labor-intensive ablation like sandblasting or aggressive grinding, this product converts iron oxide into magnetite and deposits a durable latex primer so you can topcoat sooner. It’s non-flammable, cleans up with soap and water, and is engineered for marine, automotive, household and industrial metal surfaces.

How does Corroseal stop rust without removing it?

Corroseal uses a chemical conversion process to change flaky iron oxide into magnetite, a stable, inert compound that bonds to the metal. That conversion stabilizes the corroded surface and provides a sound substrate for finishing coats.

• Active ingredients chemically convert iron oxide to magnetite.
• Leaves a primed surface suitable for topcoating with most paints.
• Eliminates need for complete rust removal in many applications.
• Reduces prep time compared with media blasting or heavy grinding.

What surfaces and jobs is this one-quart formula best suited for?

The 1-quart size is convenient for small to medium tasks: gate hardware, tools, brackets, marine fittings, automotive parts and spot repairs. It works on any ferrous metal where rust conversion and priming are required prior to painting.

• Ideal for touch-ups, hobby projects, and repair of metal components.
• Compatible with iron and steel — not for non-ferrous metals like aluminum.
• Suitable for indoor and outdoor use when followed by recommended topcoats.
• Works for marine, household, automotive and light industrial applications.

How do I apply Corroseal for best results?

Application is straightforward: remove loose scale, then brush, roll, or spray Corroseal at the recommended wet film thickness. Allow the converter to react and cure before overcoating according to drying guidelines and surface conditions.

• Remove loose rust, dirt, grease and flaking paint first.
• Apply by brush, roller or spray at 8–10 mils wet for proper coverage (200–250 sq ft/gal).
• Clean hands and tools with soap and water; product is water-based and non-flammable.
• Let fully react and dry before applying topcoat; follow paint manufacturer instructions.

What performance and safety features should I expect?

Corroseal is designed to be safe to handle and effective in stabilizing rusty metal. Its water-based, non-corrosive formula simplifies cleanup and reduces flammability concerns while delivering a protective primed layer.

• Non-flammable and non-corrosive water-based formulation.
• Clean up easily with soap and water — no harsh solvents required.
• Produces a black, magnetite-like finish ready for most primers or paints.
• Provides corrosion control and a sealed surface in a single treatment step.

Who is this for? Corroseal 82320 is aimed at DIYers, boat owners, mechanics, maintenance teams and fabricators who need an efficient rust-control solution without costly or time-consuming media blasting. Choose the one-quart size for spot repairs, sample testing, or smaller projects where a reliable rust converter and primer will extend the life of metal parts and speed up refinishing.