# Undercoat

Undercoat: An undercoat is a base layer of paint applied over the primer to help cover surface imperfections, even out the texture, and enhance the paint colour. It provides a smooth and consistent surface for the topcoat, ensuring a high-quality finish. For example, when painting a wall with a dark colour, an undercoat of a similar shade or a tinted primer can be used to minimize the number of topcoats required for full coverage and to achieve a richer, more vibrant final colour.

Synonyms and similar terms for undercoat:

• Base coat: A foundational layer of paint is applied over the primer to help create a uniform surface for the topcoat.
• Intermediate coat: A middle layer of paint that serves as a bridge between the primer and the topcoat, improving coverage and adhesion.
• Surfacer: A coating applied to a surface to fill in minor imperfections and create a smooth, even finish.
• Barrier coat: A paint layer that helps to prevent the migration of stains, discolourations, or other imperfections from the surface to the topcoat.
• Midcoat: A paint layer is applied between the primer and the topcoat to enhance the final appearance and durability of the painted surface.