Muriatic Acid plays a very important role in cement cargo hold cleaning.
Step 1
Spray muriatic acid on entire cement covered area.including sidewalk or driveway. Do not let the liquid content evaporate fully from the surface. Wait for a day with no wind so you do not run the risk of acid spatters. Follow the precaution instructions and guidance on how to mix it with water. In general, you must use a plastic bucket.
Step 2
Test the acid on an inconspicuous portion of the concrete to make sure it won't damage the surface.
Step 3
Dip the masonry brush into the bucket. Scrub it into the concrete. If the stains don't lift right away, dip the brush back into the bucket and apply some of the acid solutions onto the concrete. Let it sit on the stains for no more than five minutes. Then scrub the concrete again.
Step 4
Rinse the concrete thoroughly with cool water.
Precaution Ensure Your Safety :
Step 1
Wear a respirator, eye mask, face mask and strong rubber gloves. Put on old clothing that fully covers your arms and legs. Wear socks and old shoes or boots; never go barefoot while working with muriatic acid.
Step 2
Keep a pressure washer right next to your work area in case of accidental spills. You might substitute a hose for the pressure washer, but only if it has strong water pressure. You'll also need the pressure to dilute and wash away the acid when you're finished.
Step 3
Protect other parts near your work area since muriatic acid can damage, then cover these areas with a tarp.
Step 4
Keep flames, heat and sparks far away from the acid. Muriatic acid is not flammable, but it can form a flammable hydrogen gas if it comes into contact with metal.