Pics inside. You also may find that the carpet padding is disintegrating. 18. I just purchased a mobile home with an addition (circa 1960s). Hi HIers. Sweep the areas of the floor from which you able to remove the loose, larger pieces of carpet pad. Pull up carpet where the padding has puckered with a putty knife. We like rug pads because they hold decorative rugs in place. Begin to pull the carpet padding up. 1. Let the vinegar sit for at least an hour before blotting or scrubbing the area. Active 1 year, 2 months ago. A: Scrape off as much of the underpad possible with a putty knife. Return to the corner of the room where you began and get down on all fours. Throw away the debris. It may take a little elbow grease and a few tools. Ask Question Asked 6 years, 5 months ago. Need help removing spongy black carpet "padding" from concrete floor. Rub off the rest with fine steel wool dampened in mineral spirits and dry. How can I remove stuck down carpet padding from a hardwood floor? Sweep the areas of the floor from which you able to remove the loose, larger pieces of carpet pad. Posted by 5 years ago. As long you put a pad under your rug, you shouldn’t have a problem with the rug slipping out of position. If so, then we can teach you how to remove rug pad residue from concrete floors and other types of flooring. Place a folded towel or cushioned pad under your knees to lessen the strain. The foam underneath was multi-colored, and the black spots appear to have melted to the floor. (Photo courtesy of Angie's List member Peera N. of Irvine, Calif.) Throw away the debris. How do I remove stuck (melted?) 1. Step 3 - Remove the Carpet Padding. Need help removing spongy black carpet "padding" from concrete floor. Use a pry bar to remove the tackless strip that keeps the carpet in place, as the strip will be nailed to the floor. Close. Apply a little wax to the area, if wax is the finish currently on the floor. When old carpet remains on your floor for long time, the rubber backing eventually deteriorates, and it often sticks to the floor when you remove the carpet. Return to the corner of the room where you began and get down on all fours. Then add floor finish, sand, buff, and refinish again. (its not rubber,but foam) Lots of scraping results in little removal,is there some chemical I could use as I have tried goof-off,oops ,snake oil , ect to no avail Usually, it is best to remove floor edge molding to get all the way to the walls, but if the molding is expensive or hard to remove, it is not unreasonable to do a best effort with the edge sander (above right) or an orbital with a shield.