Removing expanding foam

[bikeit]

How can i remove expanding foam that has cured from a concrete path and a pebbled dashed wall that is painted?

 

[^woody^]

It will be degraded by the sun in about 6 months and will then brush off easy.

It will brush off now with a bit more effort, and some solvent will deal with any stubborn adhesive

 

[bikeit]

What solvent could i use?

 

[JohnD]

Foam Eater

I think Acetone (nail varnish remover) may also work.

 

[mointainwalker]

Cut off the excess with a knife and then rotary wire-brush.

 

[big-all]

i am always wary off abrasives[including wire brushes] as a clean patch can look really bad on its own