Can a sealer be used as?

A sealer is primarily designed to prepare a surface for additional coatings by providing adhesion and protecting the substrate. It acts as a barrier between the surface and subsequent layers of paint or finishes, ensuring that the final appearance is smooth and uniform.

Using a sealer as an undercoat is particularly important because it enhances the overall finish by allowing the color and topcoat to adhere better. This layer can help in reducing the amount of topcoat needed and can prevent issues like bleeding or discoloration from the underlying surface. Sealers also contribute to a more even application of color, ensuring that the topcoat appears consistent and vibrant.

While sealers can sometimes serve other purposes, such as aiding in the performance of topcoats or providing a certain level of protection, their primary application lies in acting as an undercoat. This role ensures that the topcoats achieve the desired finish quality and durability.