These are all distilled hydrocarbons that can soften the tar.
Removing tar from concrete wall.
Put on all of your protective gear before you begin working with muriatic acid.
Dilute the acid to the desired strength using the label as your guide.
There actually seems to be a dearth of information on efficient ways to do this.
The first thing i would try is a sandblaster.
Check the label carefully before you open the bottle making sure.
To clean the tar from your concrete floor with muriatic acid first put on all of your safety gear.
If you are lucky a tool rental shop may have a small sandblasting kit that works off of an air compressor used by carpenters.
The sooner this is accomplished the better.
I would not use them as the fire hazard is so extreme.
Review the package s instructions carefully then dilute the acid by adding it to water in a sturdy bucket.
Next apply the mixture to the tar carefully and let it sit for a few minutes.
Steps to remove the tar.
Follow the label s recommended ratio.
This is the most efficient and inexpensive way that i ve found.
When diluting always add acid to the water.