Why does nobody talk about paint shelf life?

I found out paint actually expires after about 10 years in the can, even unopened. I found that fact buried in a Sherwin-Williams safety data sheet when I was looking up VOCs. So is it worth keeping that half-used gallon from 2012 or should we all just toss anything over a certain age? I never even thought about it before.

3 comments

3 Comments

gracej995d ago

Oh you KNOW that 8 year old can was still good if it was stored half decent. People act like paint turns into poison after a few years but Ive used 15 year old oil based enamel that worked BETTER than fresh stuff because the old formulas had way more solids. Latex is trickier sure but that "dried two shades darker" story sounds like user error more than the paints fault. If you stir it Properly and thin it a bit with some floetrol you can bring old paint back to life like 90% of the time. The real trick nobody mentions is that old paint often has better coverage because the pigment load was higher back then before they started watering everything down for VOC regulations. Keep that 2012 Behr, worst case you waste a few minutes mixing it up.

hernandez.gavin5d ago

That latex paint probably turned into a weird separated sludge by now anyway. Sitting in a garage for a decade through temperature swings breaks down the binders way before the official shelf life even hits. Honestly the bigger issue nobody talks about is how the color shifts over time even if the paint still looks fine. Those pigments settle and oxidize differently, good luck trying to match a touch up patch to faded wall paint made from old stock. Had a buddy use 8 year old can for a quick fix and it dried two shades darker, looked awful. Just chunk it unless you absolutely need that exact color for hiding a patch behind furniture, not worth the gamble on visible walls.

owens.laura5d ago

My 12 year old can of Behr stirred up perfect last month and matched the wall exactly.