How do you know when acrylic paint goes bad?
How long does acrylic paint last after opening?
Can I use old acrylic paint?
Is all acrylic paint permanent?
How do you revive acrylic paint?
How do you know if your paint is bad?
After the lid is opened, some paint might have a sharp smell: rancid, foul, or sour. Other paint might smell like mold or mildew. If the smelly paint is applied, the smell may lessen but not disappear. Bacterial growth is the driver behind this smell.