In article ,
"Andrew" says...
I've got polystyrene cement on my slate floor. Any ideas how to remove it?

it's dry, the floor is green brazilian slate that's been sealed (with
sealant!) and polished with HG golvpolish.

should I just use more golvpolish and see if it removes it?

Acetone will dissolve the polystyrene, but will probably take off the
sealant and polish too so use it sparingly.