Do I need to paint over a KILZ?

Do I need to paint over a KILZ? Yes, you generally need to paint over KILZ primer with topcoat paint for best appearance, durability, and washability, as KILZ is primer not finish paint. KILZ Original and KILZ 2 are designed to seal stains, block odors, and provide adhesion for topcoat, but they are flat, porous, and not as durable or washable as finish paint, and may look uneven or chalky if left as final coat. Some KILZ products like KILZ 2 can be left as is in low-traffic areas like closets if white is acceptable, but for walls, ceilings, and high-traffic areas, topcoat is recommended to protect primer and provide desired color and sheen. KILZ itself recommends topcoating within certain time, typically within 30 days for best adhesion, though can be longer. Leaving primer exposed for long may attract dirt and be hard to clean. For exterior, topcoat is essential to protect primer from weather. So while you could technically leave KILZ as white coating temporarily, you should paint over it with latex or oil-based paint for proper finish, washability, and longevity, following dry time of 1 hour before topcoating.