Using the scrub brush scrub the stain using a considerable amount of pressure.
Best way to clean rust stains from concrete.
Allow to dry completely and asses what came up.
For cleaning concrete pour the lemon juice or vinegar directly onto the rust stain and allow it to sit for ten minutes so the ingredients can fully penetrate the rust.
Once you ve done this use a dry cleaning method or let the cement air dry before moving on to the next step.
Vinegar rust stain removal step 1 remove the surface dirt and debris from your driveway by sweeping the area with a stiff broom.
A fairly new rust stain may succumb to the mild acid of white vinegar.
Spray them with oven cleaner.
I m not sure power washing is important but i figured any surface dirt might insulate the rust deposits preventing them from being dissolved by the next step the acid.
Rinse and repeat if the concrete.
Rinse the area off with cold water.
3 8 in a pump up sprayer i mixed a 50 50 solution of water and a product called acid magic.
Make sure to use in a well ventilated area as oven cleaner is some nasty stuff rinse off with a hose and the stains will disappear.
Make sure the surface is clean apply the rust remover or acid following the instructions and safety precautions on the bottle let it sit for five to 10 minutes then scrub and rinse.
If you have a grease or other stain you still can t remove from concrete or asphalt it s time for a different approach.
Use a brush that s appropriate for your concrete to avoid damaging it.
Spray the stains directly to see what you can get up.
There are a few rust removal methods that can get rid of those stains and restore the look of your concrete driveway.
Removing rust stains from concrete first things first use a pressure washing or a power washing technique to get rid of loose dirt on the cement.
Spray any stained areas with oven cleaner then let sit for 10 minutes.
Let it settle for 5 10 minutes then scrub with a stiff.
Get those unsightly grease oil and transmission fluid stains off your concrete driveway or garage floor.
Use your stiff brush to scrub the area with the rust stains and then rinse with the hose.
Once the surface is dry pour or spray lemon juice on the rusted areas.