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

The type of joint compound that can be stored at any temperature is the powder or setting compound. This is because powder compounds do not have the additives that are sensitive to temperature variations that can affect premixed products. They are stable in form until mixed with water, making them less susceptible to spoilage or degradation during storage.

When mixed with water, powder compounds undergo a chemical setting process that is not reliant on temperature conditions, allowing for greater flexibility in storage conditions. Unlike premixed compounds, which can be negatively affected by extreme temperatures and can spoil or harden if frozen or left in excessively hot environments, powder compounds offer a longer shelf life even under variable conditions.

This stability makes powder or setting compounds a preferred choice for contractors who may need to store materials for longer periods without concern about the impact of temperature on the product's usability.