Vinyl flooring typically is installed to provide a smooth, durable surface on which to walk. It is easy to clean and simple to install. A vinyl floor usually is laid over a foundation, often made of concrete to maximise stability. When the flooring is removed, much of the vinyl glue remains on the concrete and must be thoroughly eliminated before installing a new floor.
Purchase a multipurpose adhesive remover. Most of the commercial solvents available can safely be applied to all industrial and household surfaces, including concrete.
Prepare a well-ventilated workspace by opening a window if the concrete floor is indoors. This will prevent you from inhaling hazardous fumes from the adhesive remover.
Soak the affected areas on the concrete with warm water for about 20 minutes. This softens the glue before the chemical solution is applied.
Follow the directions on the product label for applying the adhesive remover; allow it to soak and dissolve the vinyl glue for the instructed length of time.
Scrape the glue residue until all the pieces have been removed.
Sweep up the remains and wash the concrete floor with an appropriate cleaner.
Many flooring adhesives made before 1980 contained asbestos, which can cause disease if inhaled in large quantities over a long period of time. Protect yourself from exposure by wearing a face or dust mask.