overpainting polyurathane

[thesnail]

Just moved in to my house and find all the wood work is coated with a thick layer of polyurathane paint.

When I tried lining in some cupboard doors the gloss I was using just seemed to "creep" making it impossible to keep a straight edge.

I tried rubbing down the original paintwork and wiping down with white spirit but no luck so far.

Any help appreciated

Bryan

 

[Zampa]

Theres no reason why polyurethane should creep as such..creep onto what?