Unopened cans of paint last for years when stored correctly. Unused latex and water-based acrylic paints last up to 10 years, and the shelf life of alkyd and oil-based can be as long as 15 years.
How can you tell if unopened paint is bad?
- Paint is moldy or smelly: Paint that sits in storage for a long time may begin to mold or mildew if it has a bacterial contamination. …
- Paint is “chunky”: Paint that sits for a long time will settle, so you’ll have to stir it properly before beginning to use it.
Does paint expire if opened?
Paint’s Shelf Life Water-based acrylic and latex paints can stay good for up to 10 years if never opened and kept from freezing. Leftover paints that have been opened should be closed up tightly, stored in a cool, dry place and used within two years.
