A nitrocellulose paste-like putty designed to even-up wood surface imperfections. Has ease of application using a putty knife, that dries fast into a hard easily sand-able coat. USES Applied over wooden surfaces primed with Sphero Lacquer Primer Surfacer Glazing Putty - For filling open wood grain, pit mark, nail heads, joints and other deep dents and imperfections. Spot Putty - For filling localized spot with fine scratches, shallow dent and other isolated minute irregularities on the surface.