The drywall store near me told me the they don't have (or use) joint compound for drywall seams, they use something called "slow plaster" (free translation) for over the drywall tape with the same or better results.
Any truth to that? Why would I choose one over the other?
Best Answer
There are huge differences. I am sure a professional tradesman can go over the exact specifics but here is my common man take (even though I have drywalled too many houses to remember):
The only thing else I can add is I don't know what they consider slow plaster. I am sure that refers to the setting time. The plaster I have used starts setting in 30-60 minutes (hence my reference to thinset). Maybe they have something that lasts longer or maybe it is some combo plaster/compound.