Carver NOCTI Collision Repair And Refinishing Technology Practice Exam

Removing surface dust before applying paint is what a tack cloth is for. After sanding, fine dust can cling to the workpiece and, if left on the surface, it can cause imperfections like nibs or fish-eyes once the finish is sprayed. A tack cloth is a lightweight, very tacky, lint-free fabric that lightly drags across the surface to pick up those tiny particles without leaving residue or water behind. This helps the paint adhere properly and leaves a smoother finish. It isn’t used to mix paint, wash brushes, or wipe away grease—those tasks require separate products and steps (cleaning brushes with appropriate cleaners, degreasing with a solvent, and using clean rags or solvents for paint mixing). Use a fresh tack cloth for each prep step to avoid recontaminating the surface, and avoid any silicone-containing residues that could sabotage adhesion.