Sanding off foam after wall-to-wall carpet

[Mattias_Jo1]

Have a whitish-gray film of rubber residue left on the stairs. Regular sanding doesn't work. Should I use an orbital sander or a belt sander??

 

[KnockOnWood]

Try with one of these:


http://www.clasohlson.com/se/3M-Rondell-Grov/20-5482

 

[Mattias_Jo1]

Isn't there a risk of deep tracks then?

 

[Mattias_Jo1]

A belt sander worked sufficiently