Typically, you might get 5-10 years from latex paints and 10+ for oil paints. Anything more than that and you'll likely need to buy new paint. If you need to dispose of old paint, contact your county for further details.
If you kept it indoors it's fine. Paint shelf life is typically 3 years, but I've had paint that was as old as 10 years still be fine. Just don't let it get frozen or keep it in direct sunlight.
Not only can expired paint smell bad, but it could also irritate your skin, nose, eyes, and throat, so it's best to toss it out. If your paint doesn't smell but has an unusual consistency, it can also make your home's paint look like an eyesore.
If you kept it indoors it's fine. Paint shelf life is typically 3 years, but I've had paint that was as old as 10 years still be fine. Just don't let it get frozen or keep it in direct sunlight.
Oil-based paint is usable for up to 15 years. Latex paint remains usable for up to 10 years, assuming it has never been exposed to freezing and thawing. At some point, most of us end up with extra paint.
Latex paints will last up to 2-10 years. Oil-Based Paint- Oil-based paints will last between 3-11 years if stored properly. While oil-based paints take longer to dry, both while using it and in storage, it's a more durable paint option.
You might notice the consistency of your paint has changed. There may be a “skin” on the surface or lumps that won't stir out. If either of these is present, your paint has most likely expired.
For one, the expired paint will have adhesion issues. More importantly, it can be hazardous by giving off excess VOCs or paint fumes. In this case, it's best to get new paint. However, the paint may still be good if the water has separated from the solids.
“We do not have expiration dates on [Sherwin-Williams] paint but we do give it a shelf life of three years (most architectural coatings) from the time of manufacturing,” says Sherwin-Williams' Director of Product Excellence Dennis Fiorilli.
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Once opened, most paint products, including Benjamin Moore, have a shelf life of two years.
Can I paint over old paint? That's something we get asked all the time by our clients. In short, the answer is yes. That is, if the walls beneath are white, smooth, and stain-free – which, if you're in the process of repainting, they probably aren't.
One of the best ways to tell if your stored paint has gone bad is to test it on a piece of board or timber. If lumping occurs it could be that chunky sized bits of paint have formed despite a vigorous stir. Extreme bad smell like rotten eggs might be highly concentrated.
Can You Use Old or Spoiled Paint? In many cases, paint stored away from extreme temperatures and humidity is still useable long after its listed shelf life. If your paint doesn't have a spoiled odor or consistency, you can use it for touchups or new projects—though it may not result in a perfect finished product.
Recycling Your Paint
Sherwin-Williams is pleased to volunteer many of our stores as drop-off locations. Ready to drop off your leftover paint? Search for a Sherwin-Williams store* in any of the participating states/jurisdictions.
Unopened latex and water-based acrylic paints can last up to 10 years and alkyd and oil-based paints can last up to 15 years. Unopened paint maintains its ratio of liquids and semi-solids which is why it's fine to use after a long period of time. Once the can is opened and exposed to air, this ratio begins to change.
As long as paint is stored in a cool, dry location using an appropriate container that has been properly sealed, it can usually last several years after being opened. So, even if there aren't any immediate plans to paint, it's a good idea to store extra paint instead of disposing of it.
Unopened water based paint and latex paint will last for 10 years if they don't freeze. Leftover paint should be used within two years. Once your paint is safely stored in an air-tight and labeled paint container, follow these storage tips to ensure your paint lasts as long as possible.
Solvent-based paints have a 15-year shelf life. If you can stir it, it's probably okay to use (even if you have to remove the “skin” on the surface first). Latex has a shelf life of 10 years. If it has been subject to freezing, it may not be usable.
Paint Shake and Re-Tints
If you bring your old paint to a Home Depot paint center, you can have it shaken up in their machines. This saves the effort of stirring up your old paint, but it also sets up another great service: paint re-tints.
If all you need to do is cover a hole from a nail or touch up a scuff, expired paint can do the job, but don't expect fantastic results. If it smells bad, bypass using the paint entirely — that smell is bacterial growth that will likely persist once it's on the wall.
With our wide selection of paint by Sherwin-Williams, HGTV Home® by Sherwin Williams, Valspar® and STAINMASTER™, your perfect color is waiting for you.
Make dried paints liquid again with water
As acrylic paints are water-based, you can make these paints liquid again by adding water. Hot water is best for this, which you pour drop by drop into the pot. Then stir the dried paint thoroughly and wait for the water and dried acrylic paint to mix thoroughly.