Why Do I Need to Keep Leftover Paint, and How Long Should I Keep it?

When people finish painting various rooms in their house, they are inevitably left with extra paint. As long as you know how to store it, it is a good idea to keep it. You will have paint to touch up different rooms in your house if the wall is damaged, and you may want to use it for a smaller project. As long as you store the paint correctly, you should be able to use it at a later time.

Should I Keep Leftover Paint?

It is always a good idea to keep some leftover paint so you can touch up old walls later on. If your wall is damaged later on, or if you want to freshen it up, you will have the paint available. Otherwise, you would need a swatch so that you can get the exact same color. How long it lasts will depend on the type of paint you purchase. 

As long as the paint is good, you should save it. You can keep it in its can, but make sure that the lid is sealed. You can put the lid on to save it, or you can transfer it to a clean jar with a lid to seal it closed. You should always keep the paint stored at room temperature, and be sure to write on the label so that you will remember the color and the room where it was used.

How Long Does Paint Last?

An unopened can of Latex or water based acrylic paint will last around 10 years, depending on how it is stored. If it is unopened, it will last longer. The most important thing is to understand that the lid needs to be sealed so that it will last. When you open it, you can stir it. If it is good, the ingredients will mix and it will turn into a creamy texture.

When you open the can, you can also look for lumps in the paint. Fortunately, you can usually tell when paint has gone bad because it won’t mix together well. If you find lumps, you can use a strainer to siphon the lumps out of the can of paint. If you notice a bad smell, the paint has probably gone bad. This is often a sign of bacteria growing inside the paint can.

Final Words

If you have leftover paint, you can store it in a cool, dark location. You should make sure that the lid is sealed, and it will keep for up to 10 years. When you want to paint again, you can pull the paint out and check to make sure that it is okay. It is a good idea to keep leftover paint because you will be able to touch up or freshen up any surface that needs it. As long as you store the paint properly, it should be fine when you are ready to use it again.