Why Does Old Paint Smell Bad? Understanding Paint Spoilage and How to Prevent It
Why does old paint smell bad? If you’ve ever opened a tin of leftover paint and noticed a sour or rotten smell, you’re not alone. While it can be surprising, an unpleasant odour doesn’t necessarily mean the paint was faulty when purchased. In many cases, the smell develops after opening due to contamination, incorrect handling or unsuitable storage conditions.