Review on XIDIAK Rustout Instant Remover Spray - Multipurpose Car Maintenance Cleaning Derusting Spray, Rust Removal Agent for Bright Metal Strip - Ideal for Car Detailing and Kitchen Home Cleaning - 30ml (Pack of 2) by Stephen Johnson

I ordered this product to remove rust from the amplifier housing. I sprayed it on and let it sit for a minute and then wiped it off. In fact, very little rust was removed. I then repainted it and let it sit for a few minutes and a bit more rust was removed but the metal is now discolored. It should also be noted that it contains no instructions, description of actual content, or warnings.