Step 1: Dilute HG rust remover in a solution of 1:5 with water.
Step 2: Immerse the objects into the solution. Depending on the amount of rust, allow between 10 minutes to 12 hours for HG rust remover to work.
Step 3: Rinse off thoroughly with plenty of water.
For large objects that cannot be immersed in water, apply HG rust remover undiluted with a brush.