Milk Paint - why is it different?

Milk paint and lime paint, while both similar finishes, traditionally have distinct characteristics and applications.

Composition: Milk paint is primarily made from milk proteins (casein), mineral pigments, and often lime, making it a non-toxic and eco-friendly option. Lime paint, on the other hand, is mainly composed of slaked lime (calcium hydroxide) and natural pigments.

Finish and Texture: Milk paint generally provides a matte, velvety finish and can be easily layered for a textured look. It adheres well to various surfaces, including wood, plaster, and drywall, creating a durable yet flexible surface. Lime paint traditionally however, offers a more chalky appearance and binds best to porous surfaces, requiring the substrate to be slightly absorbent for optimal adhesion. Lime paint often ages beautifully, developing a rich patina over time.

Drying Time and Application: Milk paint dries relatively quickly, allowing for rapid layering and touch-ups. It can be reactivated with water if corrections are needed, making it user-friendly for beginners. Traditional lime paint has a slower drying time and requires a more meticulous application process. It typically needs multiple coats and careful attention to the environmental conditions during application and curing.

Lime paint is highly breathable and is particularly well-suited for historic buildings, as it a non-toxic and eco-friendly option.

At Lime au Lait we have developed a recipe that can produce similar finishes for both, with the same product.