Attach a scrub pad to a.
How to remove acid stain from concrete.
Step 2 use oxalic acid.
Step 3 treat with tsp.
It s always best to treat problem areas prior to sealing and waxing.
If the scratches are shallow and just in the wax then a fresh coat should do.
Fixing scratches on your concrete stain job.
How to remove battery acid stains from concrete step 1.
Prepare the area by sweeping it clear of any dirt or debris.
Step 4 try muriatic acid.
Strip back the floor wax using our floor wax remover.
Vacuum the concrete to remove all particles and debris.
The goal is to blend the damaged area so the.
To help open the slab and create a surface that will take the stain more uniformly try dry sanding using a rotary sanding scrubber with 150 grit paper or applying a chemical pretreatment such as qc con clean available from qc construction products.
Scrub the stripper into the floor with a.
Pour chemical floor stripper on the concrete.
Similar to removing rogue scratches removing an acid stain from polished concrete requires a careful approach.
Pour chlorine bleach into a spray bottle.
How to remove concrete acid stain.
Battery acid stains may be removed from concrete by cleaning the area covering the stain with a cleaning agent like acid or bleach letting it sit and then rinsing away the cleaning agent.
Step 5 apply concrete sealer.
First do a test to see if applying a fresh coat of wax will fix it.
Because the concrete was reverted back to its more natural state we basically begin the polishing process from the beginning.
Remember to always wear protective gear before using any of the cleaning products above.
How to remove muriatic acid stains from concrete.
The stains revert the concrete back to a white gray color and are etched and rough standing out against the smooth darker finished concrete.
It is safest to try a milder cleaning agent first before moving on to something more caustic.
Bleach battery acid and muriatic acid are hazardous.
Repairing acid stains on concrete grinding and smoothing the damaged area.
Put on your protective gloves goggles and clothing.
Choose a stripper that is recommended for concrete.