Hello, my plastering friends.
Welcome to our stucco channel.
FYI, with almost all our how-to videos, the title is the tip of the iceberg.
However, the video content explains in great detail what one needs to understand the process.
In this video, we explain how to apply both coats of stucco to an exterior ceiling, back
to back.
Learn how to defy gravity with stucco.
It's common knowledge for plasterers to apply the first cost of stucco
with less sand.
Thus less sand, mask the stucco as very rich
or "sticky" while setting much faster.
By the time you're done with the first coat of stucco, it's set like stone.
You're now ready to apply the stucco second coat.
FYI, the second coat will adhere much better as this first coat is still moist but set.
As I don't believe in secrets, but instead learned stucco knowledge.
To be clear, A rich stucco mix is adding less sand,
Remember, we are defining gravity.
Thus the same three-to-one ratio for walls would be foolish for a skilled applicator
and plaster tender to mix to defy gravity on a ceiling.
I tell my brother Luuuu, dude, give me half stucco and half sand with accelerates for
the scratch coat so that it not only adheres well but dries quickly, so that's its set,
firm, and hard, to receive our second coat, which is going on as fast as the scratch coat
is set.
Naturally, if you're just applying the scratch coat with no desire to try and apply the second
or what's also called the brown coat, adhere on the same day, there's no need to add accelerators
such as "luminite," or it's the technical name of Calcium Aluminate Cement.
Stucco cement to sand ratio How much sand is for each coat of stucco?
Scratch coats are mixed at 1 part cement to 2-1/4 to 4 parts sand, brown coats are mixed
at 1 part cement to 3 to 5 parts sand, and finish coats are 1 part cement to 1-1/2 to
3 parts sand.
As
a rule, we usually mix 3 parts of sand to every one part of cement plaster.
The cement plaster I use is premium-based Portland cement.
It has lime
and is common in it.
If you want stucco to grip, set, hang tight, defying gravity,
mix half sand and half stucco.
As fast as Jason, my son, and I were applying, it was setting up strongly.
The accelerated stucco mushroomed above the Rib-lath.
You can see in this video what that looks like.
https://youtu.be/3-CP2lKdDqA/ the rear of the rib lath shows how it keyed or how it
adheres permanently.
Yes, I am applying a fast-set hydric cement plaster called Eisenwall.
Eisenwall is only sold
at plastering yards, plus you have
to add
your own
sand
to it.