If you’re looking for an easy-to-use, highly effective rust remover, look no further than Q12, a rust-busting solution that’s been around since 1967! Its formulated mixture of hydrochloric and phosphoric acid works by converting iron oxide (rust) into iron phosphate, which can then be washed off with soap and water.
Features:

Formulated with hydrochloric and phosphoric acid
Converts rust into iron phosphate
Easy application with a toothbrush, paint brush, or by pouring or dipping
Effective with or without surface prep

Application:

Apply with an old toothbrush or paint brush
Can be poured, dipped, or painted directly onto the rusted area
Reapply for severely corroded objects and heavy rust deposits
Works in 15-30 minutes
Wash off with clean water and/or mild detergent

Precautions:

Do not use on certain types of stainless steel or chrome-plated surfaces
Wear gloves and eye protection when using this acid-based product