The first paint coat on a new surface that fills the pores and facilitates adhesion of subsequent paint-coats to a surface is called ______. 

Explanation:

Priming Coat

• Purpose: The priming coat is the first coat of paint applied to a new or bare surface. Its main function is to seal the surface, fill pores, and provide a smooth, stable base for subsequent coats of paint.

• Usage: The primer helps with the adhesion of the finishing layers of paint by ensuring they bond properly to the surface. It also helps in protecting the material beneath (such as wood, metal, or drywall) from moisture, rust, or other external elements.

Additional Information Putty Coat

• Purpose: The putty coat is applied to fill small cracks, imperfections, and uneven surfaces. It helps in smoothing out the surface before painting.

• Usage: It is typically used on surfaces that require smoothing or filling before applying the primary paint. However, it is not the first coat of paint applied and does not provide adhesion for subsequent layers.

 Finishing Coat

• Purpose: The finishing coat is the final layer of paint applied to achieve the desired color, texture, and sheen. It provides the finished look and protects the surface.

• Usage: After the priming coat and undercoat, the finishing coat is applied to give the surface its final appearance and durability.

 Under Coat

• Purpose: The undercoat is applied after the priming coat and provides an additional layer of coverage to improve the paint finish and durability. It also helps to enhance the adhesion of the finishing coat.

• Usage: The undercoat is essential for improving the adhesion and coverage of the final paint layer, but it is not the first coat applied to a new surface.