Ban Rust is an Environex oxalic acid cleaner that clears bore water and rust stains from masonry, paving and fibreglass. Packs of 1 L or 5 L.

What it does

Bore water leaves brown iron stains on brick, paving and render. Ban Rust is Environex's blend of acidic cleaning agents with a wetting agent that drives it into the stain, converting the brown deposit so it can be rinsed off. The SDS lists oxalic acid at 10 per cent in water, a clear, odourless liquid with a pH of 0.7 at 1 per cent.

Where to use it

Bore water marks on brickwork, pavers, render and retaining walls. Environex also uses it on boats, for rust marks on fibreglass and water line staining caused by bacteria. It is part of our stone and paving care range. Neutralise afterwards with Refresh.

How to use

1. Wear safety glasses, rubber gloves and boots; it can damage clothing.
2. Mix 100 mL per litre of water in a plastic sprayer or watering can. Heavy stains can take it neat.
3. Treat about 3 to 5 m² per batch. Leave it until the stain fades, then scrub lightly with an Environex Eager Beaver.
4. Rinse with fresh water. Neutralise with a capful of Refresh to every 5 to 10 L of water, followed by a clean water rinse. Repeat on stubborn stains.

Safe on / avoid

Most masonry, building surfaces and fibreglass. It is an acid, so keep it off marble, limestone, travertine and bluestone and test a hidden patch first. It will not prep rusty steel for paint. Never mix it with alkalis or hypochlorite cleaners, which the SDS names as reactive. Read the Safety Data Sheet before use.

Specifications

Pack sizes and delivery

1L (minimum 6) and 5L (minimum 3), lot sizes as marked. Freight is quoted to your postcode at checkout. Dangerous goods freight applies.