STAR BRITE Rust Stain Remover for Fiberglass, Vinyl & Metal — 1 Gallon Fast-Acting Cleaner

STAR BRITE Rust Stain Remover is a fast-acting liquid cleaner that lifts corrosion and rust stains from fiberglass, vinyl, metal and painted surfaces with minimal scrubbing.

Designed for marine, RV and home applications, this 128 oz (1 gallon) formula starts breaking down rust on contact so you can restore bright, clean surfaces quickly. It’s formulated to tackle staining caused by metal fittings, clamps, sprinkler heads and other oxidized hardware. Use it on deck, gelcoat, siding and other materials—but always test an inconspicuous spot first to confirm colorfastness.

How do I use STAR BRITE Rust Stain Remover on fiberglass or gelcoat?

Spray the solution directly onto the stained area and allow it to work until the discoloration fades. Lightly rinse with fresh water when the stain is gone; repeat or agitate gently for stubborn marks.

• Spray product onto the stain from several inches away
• Allow dwell time—watch for the stain to lift visibly
• Rinse thoroughly with fresh water to remove residues
• Repeat or scrub lightly for deeply set rust

Will this damage painted surfaces or vinyl if I use it regularly?

When used as directed and after a small patch test, the remover safely treats many painted and vinyl surfaces without aggressive abrasion. Avoid prolonged contact with fabrics and do not leave the product to dry on the surface; promptly rinse to minimize any impact on finishes.

• Always test in an inconspicuous spot first
• Do not allow contact with fabrics
• Rinse thoroughly to prevent lingering chemical exposure
• For protection, follow up with STAR BRITE Polish to seal cleaned areas

What kinds of rust sources and stains does this formula remove best?

This remover targets corrosion marks caused by metal hardware—nuts, bolts, fittings and sprinkler parts—making it ideal for both marine and residential use. It dissolves oxidation that discolors surfaces so you can restore a uniform appearance without heavy mechanical scraping.

• Effective on rust from metal hardware and marine fittings
• Works on sprinkler and lawn equipment rust stains at home
• Suitable for fiberglass, vinyl, metal and many painted surfaces
• Formula begins acting on contact to speed cleanup time

How can I prevent rust stains from returning after cleaning?

After removing rust, seal the area to reduce future staining and protect surface pores. Applying a protective coating, such as STAR BRITE Polish, creates a barrier that limits metal oxidation transfer and helps surfaces stay cleaner longer.

• Clean and rinse completely before applying any protectant
• Use a polish or sealant designed for the surface material
• Check and replace corroded hardware to eliminate recurring sources
• Perform regular inspections and touch-ups to maintain appearance

Who is this for: STAR BRITE Rust Stain Remover is suited for boat owners, RV enthusiasts, property managers and homeowners who need a reliable solution for corrosion marks on gelcoat, vinyl, painted or metal surfaces. It’s especially useful when stains come from nearby metal components or landscape equipment and you want a chemical that acts quickly and rinses clean. Keep away from fabrics and always validate colorfastness in a hidden spot before widespread application.