Drywall Installation : Drywall Installation: Mud

Uploaded by expertvillage on 29.09.2008

Mud is pretty much a powdered sheet rock so that when you put your drywall up like we
showed you in the segments before you need to smooth out the wall, cover the nail holes,
cover the joints and you know make it look like what it looks like when it is a finished
product, nice and smooth after you put some paint on it. So what this is is it is a mixture
of the actual sheet rock in a powder form so that you can add water to it and it turns
into a hardened sheet rock when it dries and that is what makes, you know after you have
two pieces of drywall up here and you fill in those cracks that is what makes it nice
and smooth like this. They have many different types of it. They have the powder form that
comes in five minute which is really hard to work with because it sets up like that.
Then they have 20 minute which is really good for small patches. This stuff right here is
40 minute and the good thing about that is I can mix it in a bucket and since it takes
40 minutes to set I can mix up a relatively good portion of it and have three or four
guys working out of that bucket and it won't harden up that quick. But at the same time
when they get done with that bucket around that time it will start to harden up so you
can re-coat and that's a beautiful thing. As for Hamilton's either 20, 40 or 90 or 5
minute. They also have a 90 minute that is good too but I usually do really good with
the 40 minute so I stick to that. Then they also have the pre-mixed kind that those take
overnight to dry and some of them, sometimes if you are not putting a whole lot of mud
on the walls you can get it to dry in a day and then be able to hit it at night with another
coat but usually it takes a full night for it to dry, especially if you have deep pockets.
Alright, spackle is good and they have a whole bunch of types these days and they're all
pretty good but spackle is more for covering little divots whereas mud actually is better
for covering large portions of the wall so spackle is good for little things but mud
is good for the big job all inclusive. It is actually called Hamilton's Joint Compound
and they also have a topping compound which is the last coat that you use. The reason
you use the topping compound instead of the joint compound is it is a lot easier to sand.
It is a little more lightweight and when you mix it up, you mix it up a little wet so it
goes ahead and covers all the holes.