Undercoat is often required to seal unpainted surfaces or prepare the surface for painting. If you are transitioning from a dark to a light colour, the undercoat will help to obliterate the colour beneath. This will allow your chosen topcoat to achieve an unrivalled depth of colour.

Do I need to undercoat before painting?

When it comes to painting, preparation is the key. That's why it's important to apply an undercoat, especially on a new wall. An undercoat provides a layer for paint to adhere to, makes a surface flatter, fills in the grain, and can even be used to seal in stains.

When should undercoat be used?

An undercoat is used after a primer. It is used to fill any minor imperfections to create a smooth, even-coloured surface ready for the application of the topcoat. An undercoat also assists to lighten a surface when changing from a dark to a pale colour.