NC Thinner, short for Nitrocellulose Thinner, is a solvent used primarily for thinning nitrocellulose-based lacquers and paints. It helps achieve the desired viscosity for application, improves flow, and facilitates proper drying. NC Thinner evaporates quickly, making it ideal for fast drying applications, and it's commonly used in automotive, woodworking, and industrial finishing processes. It's important to use NC Thinner in well-ventilated areas and follow safety guidelines due to its volatile nature.