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A little more investigation as to what that "Old Black Adhesive" was is in order before you commence. It may be a petroleum based product that is dissolved with mineral spirits? Or it may be that a water soaked blanket applied to the surface will cause it to loose any bond it still has.
Absent that, a hot water pressure wash, 3000 lb# wash, citric or phosphoric acid bath are all pretty benign and may work. Grinding with a rotary device is also a possibility? If water disposal or protection is important to you a more expensive water recovery and or dust capture system may be needed.
Avoid acid washes at all cost! We see them recommended by uneducated trades people all the time!! Not only are they caustic, they degrade a concrete surface instantly and will cause other failures in short order
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∙ 13y ago
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How do you remove construction adhesives?
Depends what you are removing them from and why. Many can be sanded off, some can be removed with solvents.
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Goof off will remove many adhesives including this one without damaging auto paints.
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Goo Gone will remove all the tape adhesives that I've found, and is kind to wood surfaces.
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You need to try and get the concrete off before it settles. You can try scraping it off with a razor blade.
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Muriatic acid will remove concrete from marble. You can also sand it off. Using a scraper may also help to free it.
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Rub it with Goo Gone, it will remove most adhesives and not harm most plastics.
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Yes, if scum is cleaned off, various adhesives will stick very well to marine paint.
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smash it of with a sledge hammer
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Caterpillar excrement is an organic substances. Therefore, it can be removed from concrete using an organic solvent such as acetone.
