This mixer is made of high quality steel. It does exactly what it is meant to do. I bought it for my uncle. It has used it for various jobs. He has stated it has done great with everything that he has done. The first time he used it ; it was to make homemade laundry soap. It said it did a fantastic job. He already recommends it to all his friends. They get to see first hand how good of a job it does. It will mix ANYTHING just as it states.
This drywall mud mixer is heavy duty and works fantastic. I am using it to pulverize recycled paper products for fire logs. It smashes and mashes the paper to a pulp very quickly. If it can do this I am sure it will be great for mixing mud. The best part is that for under $10 this mixer is a best buy.