Cleaned a 2 seater settee of this type last week,
raised seams all round the cushions to give appearance of a leather suite.
Seams filthy with grimed in dirt. The whole thing was a pig to clean, took me a full 2 hours.
On the seat cushions I found that due to wear, the surface was parting company with the backing material, so they bubbled when cleaned. Fortunately they started to disappear as it dried.
Horrible job !! Hope I don't see another for a very long time !
Bryan