Typical mud pans are made in steel or plastic and are used for holding joint compound for application to drywall joints with the use of a taping or finishing knife.
These mud pans are normally tapered toward the grip with a flat bottom (shaped somewhat like a gold ingot). Joint compound normally needs to be mixed or thinned with water to be properly applied to cover various joints. This mixing is occasionally done in the mud pan, and the corners in the bottom of the mud pan often hinder mixing by trapping joint compound. Often a messy process, the mud pan can become wet and slippery and easily slide out of the user's hand since no special gripping area is provided. The straight edges on the mud pan are necessary for scraping against the taping or finishing knife for controlling joint compound quantity and shape can become permanently deformed if pan is dropped-therefore ruining the mud pan. Further problems relate to thermal conductivity of steel pans on cold days. In cold weather, the cold joint compound absorbs heat from the users hand causing discomfort and loss of dexterity.