Eli5: what is “hot” mud for drywall? is there a cold mud?

Question

I’ve seen several videos about drywall and I noticed a few people say they are using “hot” mud. Are they heating it up before use?

In: 0

Answer 1

Powdered drywall mud, also called “setting mud” or “hot mud,” contains chemicals that react when water is added to hasten hardening time. This type of mud tends to shrink less than all-purpose premixed mud but it begins to harden very quickly.

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It’s slang, and has nothing to do with temperature of its mixed components.