Drywall Compound?
Answers:
I must admit, I've always used standard joint compound for all three coats. But after reading these specs, I can see a clear advantage of the product. It does have a different chemical composition, and seems to spread thinner and be more sandable. Thanks for the tip.
Other answers:
Frankly, there really shouldn't be a difference. I know someone would argue that there's a value to it, but I'd say - interchangable.
Frankly, there really shouldn't be a difference. I know someone would argue that there's a value to it, but I'd say - interchangable.
I am assuming it would be used for your last coat. I just use regular mud and make sure I use three size knives. Use a damp sponge to smooth before you sand each coat. I like using the fiberglass tape and one of those sanding bricks instead of sandpaper.
The term "topping compound" can generally mean the material used for the last or finishing stage of the process. According to my experience, i have used "topping compound from start to finish in my "mudding" and texture work. hardly made any difference. I would conclude that you can use it from start to finish. As long as you know how to apply the mud, you will surely come up with a good finish. You can use the exact, specific material for each phase, but if you don't have the right application process and mix, a good job could be a long shot!, good luck.
Topping compound is formulated to bond best to existing joint compound (earlier coats). Topping Cmpd sands very smooth to yield best, final finish. Each formulation has different drying rates, workability and shrinkage characteristics. Each weighs and sands different also. A multi-use product is good from base to finish coats. Lite products are usually easier to work and sand but do not resist damage as well. You should consider Gold Bond Building Products manufactured by National Gypsum Company instead of USG. I am biased since I work for National Gypsum. Check out products @:
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