Howdy Folks, Kirk, Jay, Dan, and Carl here.
Today I want to talk about mechanical bonding with a scratch of brown coat,
but before I do that I want to show you how to lath an addition or a house or a patch.
Now the fella here who did this, and get this, and now this is cool
this gun on Amazon Freeman 120 bucks if you rent these it's 150 for a week now
think about it now I pay three to four hundred for my guns, whether whether or not they're Senco
or any other brand, and that's what holds a lot of people back, because, they say Kirk.
I don't want to spend a thousand dollars on equipment just to lath something so small.
120 bucks, and it's yours and this Freeman gun; I tried it, a little a
few minutes ago, it works good, anyway. Okay, lathing, two layers of paper guys,
now if you look here, you see right here, uh I got my finger under here, and I got my finger
under here, here's the studs, studs, stud, so I'm gonna put a staple here in the field.
I'm gonna put one in here in the field; why? Because in the field,
if you don't have a staple, uh, this is out further than our stucco, our stucco is going
to go basically one inch, 7/8 technically, but this is out an inch and a quarter.
So that's why we always put one in the field, to hold that down; everywhere else is done because I
just did it. But more importantly, if you look at this, he got his fur on properly; it's this way;
you see, my finger is inside that fur just like adobes for concrete. You lift the rebar or the
wire off the ground; that way the concrete goes under and over. with the same procedure, you go
under and over, but if you staple the crap out of the wire like the majority of homeowners do,
they say, Kirk, I did you a favor we stapled the crap out of it, I said you didn't do a favor guys
you actually now we got to pull it away. See, our finger is going back here; this is third wire;
that's what we want, and this guy just happened to uh be pretty good at what he does; he even got
this zip tape this right here goes under the two layers of paper, then it comes on top it's right
on the money and anyway the corners, I tell people we'll do the corners, but he did the corners too.
So this just goes to show you guys you can do your own lath, then we'll come and do the scratch
and brown all right guys, what were this video is about is, um, I got a lot of rocks in this stuff,
every time we hit it it hits a rock it pops off, I'll go over that in a minute what this
video is about is "mechanical bonding." A Mechanical-Bond, now there are a lot
of ways you can get good Mechanical-Bond guys; you can use weld Crete, but the best mechanical
bond is one where the cement absorbs with the cement. Say for example, I mean we're doing
uh stucco right now; let's say you're trying to do concrete on concrete,
well concrete slab won't adhere to another concrete slab. It'll just sit on top.
But for the sake of uh showing you mechanical -bonding, this has got a scratch coat and a
brown coat; this is just a scratch coat. I left it a scratch coat to prove a point.
Okay, you take a scratcher; the red tape is on it just say it's a gauge for me to know how thick.
Okay, I don't usually use a scratcher because we're using the same day system,
same-day system, but just to prove a point, guys, I'm going to scratch this, so I'm going
to prove what a a mechanical-bond is. Now a mechanical bond is two substrates
that are part, and they adhere by suction just like, stronger than a marriage.
Now Dan he went online, and he says, Dad, you're always talking about mechanical bonding;
here's what a mechanical bond is. A mechanical bond is an entanglement in
space between two or more component parts such that they cannot be separated without breaking
or distorting the chemical bonds between atoms, it follows that a mechanical bond is as strong as the
weakest participating chemical bond. Know what that means?
Me neither; it's just, uh sometimes that online stuff will get you carried away.
A mechanical Bond guy says this is just now applied about half an hour ago,
but say if this had set for say, three weeks a month a year, a mechanical bond is now you
if this got any dirt, dust, and grime, you hose it out but a mechanical bond is when you put two
cementitious finishes together, there are four kinds of mechanical bonds.
But we're talking about a stucco Mechanical-Bond right here, guys. so if this has been set for,
you can see look. Kirk's the best; come on now, you could see that this is fresh;
however, if it wasn't fresh and it was a year, this is how you do it; guys,
you wet it down we don't have to wet it, we don't have to hydrate it because it's already wet.
Okay, you take some mud here, and this mud is we've had a lot of rain, guys.
California been hit by a month of rain; when you buy bags at the material yards, rocks are
expected, guys that's just the nature of it now, so if I'm gonna put my next coat on here, and I
know there's a lot of rocks in this because I've been using it we just take them out I'm trying
to prove a point here guys this is a mechanical bond in Stucco there are lots of mechanical bonds.
I'm looking at some rocks; I'm getting sidetracked,
but that's okay, nothing I can't handle because I've been doing this forever.
and the rocks are nothing new after all the rain; in fact,
this ground looked like a, uh battlefield, because of the rocks and guys. I've had material yards
that we get the sand from, and it's right next to a bin of big rocks; see all these big rocks?
These are from bags, and it doesn't matter guys; you could piss, moan and whine all you want about,
oh, this material yard give me some bags with hard stucco in it.
That's just the nature of it; even if they have it under lock and key, sometimes the
uh, what's that fancy word? Condensation will beat them up, so if you have a bag and you just got it,
it's full of rocks, don't let it beat you up, guys just keep moving,
but this is a mechanical-bond in stucco terms, again there's a whole bunch of mechanical bonds.
Now what I'm doing is I'm just closing my eyes put it on heavy. Basically,
I want it fat and ugly; why? Fat and ugly I'll show you why
I'm working with my two boys; well three, they're not actual boys,
see that that's a big rock; it hits it, and it falls right off, but that's not a big deal, guys.
Get out of there!
Okay, now, for the sake of just Darbying this up now, this is such an easy addition, too
we're gonna take a Darby; we're gonna wet it, a dry darby will pull the stucco off, guys.
Always wet your Darby now what we're going to do is just drying it up, I'm gonna take It Up
here just straight up here with this ah we want to fill that guy up here same thing
fill it up come down fill it up I'm here now boom. Nothing to it if you know how
to do it. and what we're doing. is we're just going with all our grounds,
our grounds with this weep screed, this corner aid, everything should line up.
I'll use the weep screed as a template. I'll put it on and pull it up
right there the weep screed as a template, pull it up, and now we've got an excellent
mechanical-bond and anytime you have a hollow spot, just add more where
you where you need it, they're like right here. Okay, I'm gonna take some of that and put it here,
rob Peter pay, Paul type of situation, and here where the pipes are, we just go around them.
Fill it up take it here, and that is a good mechanical-bond; now we're going
to allow this to set for about oh half hour 15 minutes, uh, the weather dictates that.
Because we're using a fast-set material, how many fast-set materials are there?
Endless guys, BMI 690, eisenwall almost every product from Quikrete,
Sac Crete has a one-day stucco system. And this is how all of them are to be done, guys.
There's no exception to that rule the kind of finish we're going to do here is just
it's pretty simple pull those rocks out; remember the rocks, guys, if you're buying them right now,
don't get frustrated and lose your mind, just think like Kirk no big deal.
We'll show you what kind of finish we're doing here it was called a knockdown float, not a knock
down Dash. a knockdown float, because all we're doing is we're floating it, then, how how stiff is
this wall? Not stiff at all, Kirk, so what we're doing is we're floating that with a green sponge,
yellow sponge, it doesn't matter what color sponge.
But what we're doing is we're bringing out, the all right we're good we got
to bring out the sand guys. Bring out the sand and we're
all right above your Carl, yeah,
Okay, so I'm gonna use a super light hand right now and all this is done with rocky stucco,
that's that's just a nature sometimes, guys, uh don't get mad just handle it.
Okay, now, since it was a lite it wants it to kind of be like a a knockdown dash,
except the heavier the finish the more dirt and stuff it attracts.
so what I'm gonna do is I'm gonna take my clean float it's got to be wet guys, if it's dry what
happens it'll flatten this out, and plus it won't add the texture we want, anyhow so
take the float and barely touch it guys, barely touch it, just barely touch it and that gives
somewhat of a knockdown Dash. Except as a knockdown float
it doesn't attract the dirt, and it's easier to paint of course; you wouldn't spend a ton on paint
because that's pretty flat, so anyway guys you can do about a hundred different finishes just another
one and again and that's like that so what I'm doing is I'm taking the I'm taking this on edge it
may not show like not that kind of edge but just barely touching it guys it's barely touching it,
and that gives that right that particular look, Anyway, I'm going to go around and finish this,
and when we're done with the entire thing we'll show it to you.
All right guys we'll show you the completion and introduce my buddy Rob here, a handyman in Oakland
California; if he can build this and you see all this fancy stuff that's for barbecues and all that
Kegs and sinks and stuff he could do anything, I'll put his name in the description
with his phone number. pleasure working with you
buddy and this is what we're with guys. You can see you this is all about bonding
agents, guys, and mechanical bonds so when you you think, do I have to
use a bonding agent for stucco, to stucco? No. You don't. How how thick is this one inch is it
solid as a rock now, uh, uh, uh, "Kirk's the best! I'm gonna leave that for Rob; I'm kidding;
I'm gonna get that out, guys. I'll just get playing around now,
and then I'm gonna take my trowel and hit that one time because it's a knockdown float.
Anyway, my name is Kirk and sons we thank you, guys, for watching, and as usual, see you on the
next one all right folks we want to thank you all for watching if you enjoy the videos that we put
out please like and subscribe so that we can keep making these videos for everybody and as always
We'll see you on the next one.