Letter 30775

Contractor needs to remove Tar and Driveway sealer from concrete  

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I recently got tar(driveway sealer) on Belgian blocks and concrete. What should I use and how should it be cleaned .

Thanks what a great site.

Carl Costantini
contractor - Flemington, New Jersey

Have never tried it, but how about a hot water pressure sprayer or steam cleaning? Probably want to mechanically remove as much as you can first, so you don't drive the tar into any porous surface. Paint thinner is a moderately decent solvent for tar, but you will have to be ready with the pressure washer/steam cleaner before it soaks into the surface, carrying the tar with it. If you use paint thinner, or another solvent, be careful where the runoff goes.

Tom Gallant
- Long Beach, California

How would you remove tar on concrete that is throughout the interior of a house?

Lenora Everett
- Savannah, Georgia

to remove tar from concrete, pour mineral turpentine(Australia) on the affected areas, let the tar dissolve and remove with a high pressure water cleaner.Tough residue, in addition, will require a wire scrubbing brush.It comes up new.Cheers Rowan. Samford Housewashing

rowan macaulay
- samford queensland Australia

I have severe efflorescence under 2 coats of sealer. How do I remove the sealer and then remove the efflorescence ??

Dennis Ketcham
contractor - The Villages, Florida