Which type of joint compound can be stored at any temperature?

The correct type of joint compound that can be stored at any temperature is the powder compound. This is because powder compounds are typically composed of dry materials that are mixed with water just before use, allowing them to remain stable regardless of temperature fluctuations during storage. As a result, powder compounds have a longer shelf life and are less susceptible to issues like freezing or separation, which can occur with ready-mixed or all-purpose compounds that are made with liquid materials.

Ready-mixed compounds, on the other hand, contain water and are more sensitive to temperature, needing to be kept within a controlled range to maintain their quality. Latex compounds also have similar limitations due to their formulation. All-purpose compounds may combine multiple formulations but still require careful storage to avoid spoilage or degradation. Thus, the ability of powder compound storage flexibility makes it the most suitable choice for variable temperature conditions.