Bean-e-doo Mastic Remover by Franmar Chemical (5 Gallon)

I used this on the dreaded black mastic that is sticky and tar like and most likely has asbestos in it. It softened it up within a few hours and a second coat took off the last residue where it may have been thicker. This mastic had been down since the 50's I believe and now the floor is clean and ready for tile. I did use a degreaser after finished so the new tile would adhere well. I like the fact that it is hard to have airborne asbestos when it is all in a gooey liquid form so it seems quite safe. It smells a bit like citrus, pleasant and mild.

I needed to remove about 700 square feet of black mastic from 1967. First, tried two other products that weren't able to soften my mastic. I switched to the Blue Bear and it did the trick.I did my job by applying the wettest coat of Blue Bear that I could. I used 10 gallons for my 700 square feet of floor. I allowed it to sit overnight. In the morning, the floor was still wet in areas, but in other areas the mastic had absorbed the Blue Bear liquid.Next, I went over the whole floor with a rubber squeegee and collected all of the now liquified mastic in a bucket. After the squeegee work, a lot of thick mastic still remained, but it had been softened.I then rented a 17 inch floor buffer and bought 20 of the 3M black floor stripper pads. I also bought 7 gallons of Zep citrus degreaser concentrate to wet the floor and help with the cleanup. From there it was almost easy! I poured the degreaser concentrate right on the floor and used the machine to wet scrub the mastic. This method would remove about 4 square feet of mastic every 15 seconds. All of the liquid and mastic wound up soaked into the stripper pads. Once a pad filled up with sludge it would need to be changed. I easily used all 20 of my pads and wished that I had bought 5 more. I finished the main job in about an hour and then cleaned up the corners by hand with a steel wire brush.Finally, after two rounds of mopping with detergent, my floor was clean and ready to tile.

I have a 1000 square foot basement that had old vinyl tile on it. After the tile was removed, I had of course discovered the black mastic that will lead most people to this product. I watched several videos, read the reviews, and did my research on different methods of application and removal.Ultimately, I ended up needing two five gallon pails to fully liquify the mastic. The first pail liquified certain spots where I had put it on thick, but others were just tacky. With ten gallons of Bean-e-doo I was able to successfully liquify the mastic. The mastic turns into a black oil substance and was wasy to soak up and remove.My procedure for application and use was as follows. Using a small broom, I applied a liberal coat of bean-e-doo across the floor. I let the bean-e-doo sit for three hours and then went down stairs with a steel bristle deck brush on a handle. I squeeged the liquid around the floor until I located a spot that was still hard. I would then squeegee the liquid oil like substance into this spot and scrub it with my metal brush until it was bare concrete. After I had scrubbed all of the hard spots and successfully removed most of the mastic, I squeeged the mastic oil into a centralized location and covered it with four bags of kitty litter. I shoveled the saturated kitty litter into the empty beanie-e-doo pails and an additional bucket I had laying around. I sealed all three of these and took them to a disposal center.I used a mixture of one gallon dish soap and two gallons of simple green to degrease the floor temporarily while I prep part of the floor for demo and a bathroom installation. I again used the steel brush and scrubbed the floor as I went. This was followed by pressure washing the floor and then I squeeged it dry.Upon completion I intend to use the emerge degreaser that I purchased to remove any residual product left behind.On a side note, it did leave the basement smelling pretty bad, but with the new egress window I am cutting out it should ventilate well.