Gtechniq Marine Rust Stain Remover Spray - 5L

The Gtechniq Marine Rust Stain Remover is an aquatic-safe surface cleaner that removes rust, minerals, and other contaminants from coated or uncoated paint and gelcoat. It is designed for boaters who want to preserve the look, shine, and color of their vessel without damaging existing coatings.

Ferrous particles dissolve into a purple solution within 3 to 5 minutes of contact, letting you see the product working before you rinse. Use in a well-ventilated area out of direct sunlight, remove loose dirt with a hose or jet wash first, wear gloves and shake well, spray directly onto the surface, and rinse before the product dries — for heavily soiled areas, agitate with an MF1 ZeroR Microfibre Buff Cloth or a soft-bristled brush. Browse more options in our cleaning, detailing, and protection category.

Key Features: Dissolves rust and mineral deposits fast, aquatic safe, coating safe, works on coated or uncoated paint and gelcoat, 3-5 minute dwell time, 12-month shelf life after opening, sold individually.

Frequently Asked Questions

How long does this need to sit before rinsing? 3 to 5 minutes, during which ferrous particles dissolve into a purple solution.

Is this safe on coated surfaces? Yes, it's coating safe and works on both coated and uncoated paint or gelcoat.

How long does this last once opened? It should be used within 12 months of opening.