What does PNT SP indicate?

The designation PNT SP refers to a specific painting specification within construction and finishing processes. The "SP" in PNT SP indicates that it is a code for one coat of sealer followed by one coat of paint. This specification outlines the standard treatment for surfaces that require a protective and aesthetic coating, ensuring that the substrate is properly sealed to enhance adhesion and durability of the paint applied afterward.

In contrast to other choices, which relate to the number of paint applications or codes for installation practices, this option clearly encapsulates the combination of a preparatory coat of sealer and the finishing coat of paint, making it the most accurate interpretation of the PNT SP code in the context of construction finishing.