What is Primer ?

Definition of Primer in Construction

A primer is a material that will promote the bonding of the surface of a product with any application of a top coat of paint, sealant, fire protection, etc.

A primer is chemically designed to adhere to the surface of a material and improve the adhesion of the top coat of material to the surface material by chemically improving the interface between the two different materials. The application of the proper primer to a surface will promote a better application of the top coat and stimulate adhesion and bonding.