Emulsion paint for interior walls

[Yas123]

Hi lovely people
Can anyone help me understand the difference between contract silk and vinyl silk
Also what undercoat paint would i use befour i paint silk on top

 

[Robbie uk]

contract paint is usually a cheaper version loaded with whitening to make the paint cover but not very serviceable or easy to clean. If the walls are new plaster then they need a Mist coat of thinned Matt emulsion, ideally Contract matt. Then you can paint over with your chosen silk finish.

 

[Yas123]

Would i get away with a couple of coats of silk without an undercoat thanks