Just noticed in a Fairfax article about painting that they recommend that if opened, "clean the rim and place a piece of plastic wrap over the top, then hammer on the lid." Does anyone do that? I just tap the lid back on and the paint seems fine. And does paint ever go off? The only problem I've ever had is with a really old tin that has rusted and contaminated the paint.
I have also done the gladwrap thing. Seems to just give the lid a better seal.
With regard to how long it will last depends on how well the lid is sealed. Most manufacturers only recommend storing for up to 2 years. I repainted one wall at my mums place last year and then found out the paint in question was close to 10 years old. Apparently nothing wrong with it. I might add it did seem to take longer to stir the mix even again.
Workshop is a friendly place to learn, get ideas and find inspiration for your home improvement projects
We would love to help with your project.
Join the Bunnings Workshop community today to ask questions and get advice.