Drywall – How to prevent mold in drywall mud pail


I just opened my pail of drywall mud and discovered mold on the sides. It has been a few months since I last opened it. This happened to me a few years ago. I tried using the mud anyway, but the bad odor persisted in the dried mud. I had to toss that pail of mud. As a work-around, I've been using 20 minute mud powder, but that was going to be inconvenient for a somewhat larger project I had recently. How do I prevent mold from growing in the bucket?

Edit: I wonder if I sprayed (light mist) a mix of chlorine (Clorox) and water onto the sides and surface of the mud?

Best Answer

Once you have mold in the bucket, the compound is no good. After using some compound from a bucket, I found that if I cover the unused compound with cellophane it helps to extend the life of the bucket. Take a bucket scoop to push all the unused compound into the bottom of the bucket, then cover it with the plastic. Even though the compound may last a little longer, it won't last forever.