Patio Black Spot Removal
Go Ferrous
Go Ferrous was formulated to remove all types of rust staining from Patios, paths, and garden stonework.
Lawn Fertilisers contain iron sulphate. When accidentally spread on wet patios and paths they can leave small rust marks across your stonework. To remove, use Go Ferrous.
Go Ferrous will also remove rust stains caused by BBQ equipment, metal pots and plants.
Go Ferrous can be safely used on Most Indian Sandstone (Not Kandla Grey Sandstone), York Stone, Limestone, Granite, and all other natural or artificial slabs, without destroying the surface. Does not damage the surface of the stone unlike more conventional aggressive acids, so can safely be used around the garden and washed into flower beds. Go Ferrous will not remove rust from metal.
2 Litre container will cover 10 SQM
4 Litre container will cover 20 SQM
Directions
1. With the lid firmly in place, shake the container well before opening, to ensure no settlement has occurred during storage.
2. Apply to the surface by pouring or spraying, directly onto the offending area. A brush can be used to spread the product across the slab.
3. Ensure the stain itself is fully covered with a small puddle of Go Ferrous. ALWAYS treat the whole slab.
4. What to expect - Nothing for the first 2-3 hours. Go Ferrous is a clear liquid - made from recycled green-leaf vegetables. No fizzing or reaction will be seen. Gradually, the stain will disappear.
5. After 6 hours, simply rinse with hot water from a watering can or, for a larger area, lightly pressure wash.
6. Review the results, if rust remains, repeat the process above. The darker the rust stain, the longer the dwell time required and repeat applications.
Some stones can appear lighter after applying Go Ferrous. In time, the slab will return to it's natural colour. This is where the product has cleaned and dried on the surface. No damage has been caused.
In warm temperatures, apply in the evening when the temperature is cooler. If the product dries out, reapply.