The Leftover Paint Guidebook

Have you finished your painting project and want to store your leftovers for future use? There are a few things to know to ensure optimal conservation. Indeed, painting can be capricious! Here’s what you need to know.

Seal Your Container

Make sure you keep your paint in an airtight container. We always recommend keeping the original container. Before closing the cover, remove excess paint from the edges using a clean cloth. Then, use a solid object such as a hammer to close the container. Before closing the lid, cover the jar with plastic wrap. It is recommended mainly when there is a few paint left.

Keep Container Away From Humidity

Paint hates humidity. In fact, it can cause the container or the handle to rust. If corrosion mixes with the paint, it should be discarded. So choose a dry environment like the inside of the house or a heated garage. Read our article 5 easy steps to know if your old paint is still usable if your container is a rust victim.

Leave It in Its Original Container

Many people mistakenly believe that transferring the paint to another container will lengthen his life. This is a myth! A glass container lets in light and spoils the liquid, while a plastic pot like a Tupperware is not made to store paint. It will definitely last longer in its original containers. Also, it’s best to keep the label in order to have the technical information handy and the colour code in case of major touch-ups or new paint project.

Store Your Paint Upside Down

Did you know that it’s best to store your paint containers upside down? This prevents air from entering. But of course, you have to make sure the lid is well closed before. Place the container on top of a cardboard box, just in case there are leaks.

Keep Away From Cold Weather

It is important to keep the paint away from cold environments, especially if it is a latex. Indeed, if the paint freezes the paint will no longer be usable. And even if you try to remove the lumps, the damage is done.

Don’t Mix

You have two different yellow leftovers and wish to mix them together. Don’t. Despite their similarities, these paints probably do not have the same components and this could cause a technical or an aesthetical disaster. You think you’ll be applying yellow but it may turn out brown. It’s better not to try.

How to Dispose of Leftover Paint

If you have leftover paint you wish to dispose of or if you leftover paint that is no longer usable, make sur to recycle your product at a drop-out point. In Quebec, there are hundreds of drop-off points that collect them for free. Certain municipalities allow its citizen to recycle their paint from home (no need to wash the container!) However, paint must be air-dried to avoid contamination. Make sure your municipality accepts this.

Now all you have to do is store your paint properly for your next touch-ups!


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