I had a bathroom project a while ago, I took up the laminate and put down tile. After the laminate came up, the whole floor was covered with the glue they use when laying it, it was like hard plastic. I had at the time researched some ways/products to use and came up with KRUD KUTTER, I know you can get it at either Home D or Lowes and I think you can even now get it at Wally world. I used it full strength, poured it on, left it (dont remember how long) came back with a putty knife and it was all gooey and soft, came right up.. I wouldn't have believed it if I hadn't seen it with my own eyes. another example of what I've used it for. I had a perpetual haze on my laminate wood floors (most likely from a build up of cleaning products etc. caught one cleaning lady using mop and glow on it, ugh) anyway, it would never stay shiny and clean looking. I had tried several things and finally tried the KK, again, full stength but I didn't leave it very long. came back with a plastic spatula/turner and literally scarped off a yellow film. It did not appear to hurt my floors, and the haze was forever gone, (now I only use vinegar and water). Might be worth a try? Well, I dont know if it can hurt to try it, Disclaimer: I have no affiliation with this product and have no information on how it might work or affect your floors :) I think it's a great product with many uses and just thought I'd mention it.

When we removed our carpet, the concrete below had been painted before carpet went down. My hubby used a Bern Z matic torch to heat up glue, then scraped it off with metal putty knife. We have swirls of bare concrete where the glue was. Will paint eventually and hope for the best. I think he also tried a metal wire brush on a drill. All I can say is good luck. Maybe wait for cooler weather. :)

anglophilia- I'm sorry your husband died of cancer. However, that does not mean that since he he didn't die of an asbestos-related disease what you did with your floors was necessarily safe. Maybe it was, maybe it wasn't. Many people have exposures to toxic materials, even multiple ones, and it doesn't cause them health problems or kill them...but some are affected. In my posts above urging caution, I'm not suggesting that if you have an asbestos exposure it will kill you...it's just that you want to minimize avoidable exposures. I have a 93 year old relative who is still alive after decades of smoking and working around asbestos, and I also know of a 30-year old who died from asbestos exposure as a result of a several week summer job he had in college. Risk is a complex issue that depends on many factors, including genetics. One can't predict which individuals specifically will come down with a disease from a certain type of toxic exposure; we can only see what the overall incidences are and try to help people avoid taking risks that might make them one of the unlucky ones. We are all exposed to nasty stuff, often without realizing it. Typically, larger exposures --- such as occupation-related ones -- are more concerning. But there are some substances, such as asbestos and lead, where the medical and scientific communities have yet to find any level of exposure/intake that is guaranteed safe. People want risk to be black and white: it will kill me or it won't. But most environmental concerns aren't like that, so we have to live with a wide spectrum of gray, and make personal decisions on how cautious to be or not. I know for certain something will kill me some day, but I try to avoid making choices that will possibly speed that up....

I wouldn't dream of using gasoline! I'm worried enough about the fumes from adhesive remover -- which is why I was looking for something milder that could still do the job... I wonder why bleach would work, that makes no sense. I found out the hard way that cat urine would remove old adhesive -- when we removed the original linoleum from our 1941 kitchen, our elderly feline was quite upset by the construction and started using the exposed subfloor instead of the litter box. Every spot she went, the remaining old adhesive came up easily. However, there are distinct disadvantages to that method!!! Hmm, maybe I should try cleaning ammonia? but, again, fumes...