I am using a catalyzed type mud. Is has a 20 min hardening time (can be had in 5, 20, 45, and 90 mins) with very low shrinkage rate. Regular mud has a huge shrinkage rate and in comparison takes many hours for a thin layer to dry. Cost is under $9 for a 25# dry mix, compared to plaster at $20+ for same weight and having similar shrinkage rate, and would still have the same problem if moisture was present at all.
It sands like butter compared to plaster, and I use it regularly on any and all sheetrock repairing/installation, so very familiar with mixing and dry time ratios.
After using all of the materials mentioned, the catalyzed sheetrock mud is the most volume and best workability for the buck. Which after I do the initial shaping with the wood rasp, most is in pile on floor. Lol.
It is the first time I have used it for this purpose, but, have had same probs with plaster also, this is just 1/3 of the cost. Just need to account for more dry time or bake at a low temp before covering with a chemical based product next time.
You don't learn if you don't F something up! Hahaha
It sands like butter compared to plaster, and I use it regularly on any and all sheetrock repairing/installation, so very familiar with mixing and dry time ratios.
After using all of the materials mentioned, the catalyzed sheetrock mud is the most volume and best workability for the buck. Which after I do the initial shaping with the wood rasp, most is in pile on floor. Lol.
It is the first time I have used it for this purpose, but, have had same probs with plaster also, this is just 1/3 of the cost. Just need to account for more dry time or bake at a low temp before covering with a chemical based product next time.
You don't learn if you don't F something up! Hahaha