I have a floor job that I am putting a bid together for up here in the Dakotas. The floor is in an old manufacturing building that is being renovated to suit another purpose. The floor has several seperately poured slabs that the presses sat on. Each one of the pads need to be seem sealed and cracked sealed along with leveled with the rest of the concrete floor. The floor is covered in 40 years of grease, animal fats and metel shavings. I thought about dry iceing the floor but it would be to time consuming so now im thinking about blasting the floor with glass. Would blasting the floor completely clean it from the grease? Big job that would really spring me into the working season.