The application of paint on interior plaster surfaces has become increasingly difficult

Inferior plaster work and the tendency to rush painting on damp walls.

Uneven suction effects on poor walls may be generally counteracted by the use of varnish type priming coats – at the risk of cracking and peeling of later paint coats. A better looking job is often temporarily secured on non-uniform plaster, through the use of varnish base primers, but the prospect of future failures is always great.