How to Remove Orange Battery Acid Stains

Step 1:  Pre-Clean Concrete

Professional cleaning video.  Not edited or narrated, so learn by watching.  This is how you should clean a driveway in preparation for F9 Concrete Rust Remover.

Step 2:  Allow concrete to dry completely and apply the 1st application of F9

Step 3:  Allow the 1st application of F9 to dry and apply the second coat

Step 4:  Final step.  Wet concrete, broom while wet and lightly rinse off salts.  Do not use a surface cleaner here and LIGHT RINSE ONLY.  Do this to all sections of the concrete.