Rust Stain Removal - Go Ferrous

Patio Black Spot Removal

Rust Stain Removal - Go Ferrous

£29.99
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Tough rust stains don’t stand a chance with Go Ferrous – the professional rust remover for patio slabs and natural stonework. Specially created to tackle even the most stubborn marks, this powerful yet gentle cleaner restores removes surface rust marks effortlessly to patios driveways, and garden paths.

Go Ferrous was formulated to remove all types of rust staining from patios, paths, and garden stonework. From iron sulphate in lawn fertilisers to rust marks caused by BBQs, garden furniture, and metal plant pots, this advanced solution penetrates deep into the surface to dissolve rust and green algae that standard cleaners or jet washing can’t shift.

Safe and versatile, our patio rust remover is suitable for Indian Sandstone (excluding Kandla Grey), York Stone, Limestone, Granite, block paving and most other natural or paving slabs.

Unlike harsh acid-based products, Go Ferrous is a clear, acid-free formula made from recycled green-leaf vegetables. It cleans effectively without damaging stone surfaces and can be rinsed away harmlessly over lawns and flower beds.

Coverage

·       2 Litres – treats up to 10m²

·       4 Litres – treats up to 20m²

Directions for Use

1.      Shake the container thoroughly before opening.

2.      Apply directly to the stain by pouring or spraying, then spread evenly with a brush.

3.      Cover the entire slab, ensuring the rust mark is fully saturated with solution.

4.      Leave for 2–3 hours — no fizzing is visible as the cleaner works gradually.

5.      After 6 hours, rinse away with hot water or lightly pressure wash larger areas.

6.      For darker rust stains, allow more dwell time or repeat as needed.

Note: Some slabs may appear lighter after use - this is simply the cleaned surface drying and will return to its natural colour in time. For best results, apply your patio rust remover in cooler evening conditions and reapply if the product dries too quickly.

How to remove rust stains from a natural stone patio?

Rust stains on natural stone are best treated with a rust remover formulated specifically for stone surfaces. These products break down iron deposits without damaging the stone’s finish. Apply the solution evenly, allow it time to react, and rinse thoroughly. Avoid acidic household cleaners, as they can worsen staining or etch certain types of stone.

What removes rust from natural stone?

Rust on natural stone is most effectively removed using a stone-safe rust remover that targets iron deposits without affecting the stone itself. These treatments work by dissolving the rust so it can be rinsed away cleanly. They’re far safer than general acidic cleaners, which can permanently etch sandstone, limestone, marble, and other sensitive surfaces.

Does WD-40 remove rust from stone?

WD-40 isn’t recommended for rust on stone, as it isn’t designed to break down iron staining and may leave an oily film that attracts dirt. It can also darken porous stone. A dedicated rust remover formulated for natural stone is a much more reliable option and avoids the patchiness that unsuitable household products can cause.

Will vinegar remove rust from stone slabs?

Vinegar can react with natural stone and cause etching, discolouration, or surface dullness, so it shouldn’t be used to remove rust. Although acidic, it doesn’t break down iron deposits effectively and may damage the stone in the process. A stone-specific rust remover provides a safer, more predictable solution without risking permanent surface marks.

Is hydrogen peroxide safe for natural stone?

Hydrogen peroxide is generally too strong for natural stone and may lighten or damage the surface, especially on porous stones like sandstone and limestone. It also doesn’t reliably remove iron staining. For rust, a purpose-made, non-acidic rust remover designed for stone gives far better results while protecting the stone’s long-term appearance.

Will a rust remover damage my paving?

A rust remover designed for stone and paving will not damage the surface when used as directed. These formulas target iron staining without affecting the stone’s natural colour or texture. Damage usually occurs when acidic or unsuitable household products are used instead. Always follow the recommended application time and rinse thoroughly afterward.

Do I need to scrub after applying the rust remover?

Most stone-safe rust removers don’t require heavy scrubbing, as the product breaks down the rust chemically. A light agitation may help on older or deeper stains, but the solution should do most of the work. After the reaction period, a thorough rinse will lift away the dissolved rust without the need for abrasive brushes.

Is a rust remover suitable for sandstone?

Yes, as long as the rust remover is formulated specifically for natural stone, it can be used safely on sandstone. Sandstone is porous and sensitive to acids, so avoid harsh or acidic cleaners. A dedicated stone-safe rust remover lifts iron staining effectively without causing etching, colour changes, or surface weakening. Many rust removers can be used on Kandla Grey Sandstone.

How often can I use rust remover on my patio?

Rust remover can be used whenever staining appears, provided the product is stone-safe and used according to the instructions. Most patios only need treatment occasionally, as rust typically forms from metal furniture, tools, or water runoff. Regular cleaning and moving metal objects off the stone can reduce the need for repeated applications.

How much rust remover should I use per square metre?

The amount of rust remover required per square metre depends on the product’s concentration and the severity of staining, but most treatments specify a clear coverage rate on the label. Apply enough to fully wet the affected area so the solution can react evenly. Heavily stained patches may require a second application for best results.