Another fantastic product from Lithofin, GmbH of Germany! Rust-EX is currently the only commercially available rust stain remover that safely removes rust stains from all polished and unpolished calcium based stones(travertine, limestone, and marble) without damaging the finish. All other rust removers are acid based, and will instantly damage travertine, limestone, and marble on contact. With Rust-EX, it is now possible to remove rust stains from calcium-based stones without the need for honing and repolishing to restore damaged surfaces!
Rust-EX is suitable for removing all types of rust stains from travertine, limestone, marble, non-colored concrete, and artificial stone with a calcium carbonate base. The reactive compounds in Rust-EX interact with the rust stains and transform them into water-soluble particles that can be rinsed away. Rust from patio furniture, metal objects, fertilizers, pipes, air conditioning units, and planters can be safely removed in as little as 5 minutes, without the need for special tools or training.