Hey everybody, Ryan Marrinan here for 3m. Today we're gonna talk about a few tips
and tricks on how we're gonna replicate a door skin bead, particularly here on this
Lexus model. Some of these beads can be a little bit complicated to replicate.
We're going to show you using our products how we can accomplish this with
relative ease. Let's head inside and get started.
Alright guys so we've got our panel prepped. We've scuffed our surface, in this case
we've got epoxy primer down because we had some bare metal that was exposed.
We've also taped off the exact width of the bead that we're trying to replicate.
Various vehicles might have a little bit different bead but in this case at
Toyota we're trying to target that 8 millimeter width. First thing we're gonna
do is we're gonna grab our 5887 we're gonna put it in our applicator here and
we're gonna equalize our cartridge. It's important when we equalize our
cartridges that we're always doing it in an upright position into a towel making
sure that we got equal components of A and B coming out.
Once we get our new mixing tip applied to the cartridge we're gonna dispense a two-inch strip of
material. We're making sure that we've got good equalization coming out of the
cartridge before we put it on the vehicle. Once we go ahead and put it on
the vehicle we're gonna run a continuous bead from where we want to start to where
we end. And it's okay if you're not perfectly straight. That's why we have
the tape there, to make sure that we've got a perfect bead when we pull that off
so that it looks just like it did from the factory. As I'm dispensing this you
might notice that I'm also putting it inward towards that hem flange just a
little bit. It's important when we're dispensing seam sealers that we're
forcing the material into the surface creating a tight seal. Next step, what I'm
gonna do is I'm going to take a cut-down mud spreader and all I'm doing is just
trying to knock this down. I'm not trying to remove any material, I just want to
make sure that I'm going all the way from tape to tape on both sides, because
remember, that tape is exactly the width of the bead that we're looking for. Now
the best practice here is I'm going to start from one end of the door with each
step. So I'm gonna start caulking from this end of the door. I'm gonna work my
way all the way around. I'm gonna come back with that mud spreader. I'm gonna
knock it down from that same spot all the way back around the door and then
when I go pull my tape I'm gonna start from the same spot again. This gives the
material the equal amount of time to sit and rest on the panel, giving it
some of that relaxed feature that's built into the product and when we go to
pull our tape off it's going to give us that professional look that
we're going for. Again, as we pull our tape off we want to make sure that
we're pulling backwards against itself if anything
inward just a little bit. We don't want to create a tidal wave on the outside
where we can't get paint underneath. So I'm using the tape to create a nice
clean cut edge, and with this material you notice I got a little bit of slag
that fell on top of the bead, that's alright, we're still within the working
window. This is actually going to lay back down and melt in just fine. If it
was outside of our working window I could actually wait until this is cured.
I could sand that part smooth and then I could actually come back in with more
material if I wanted to right over the top of it. One of the other things that
we're gonna do right towards the end, some manufacturers are gonna require
this. Toyota calls it out specifically with their replacement panels whether
its doors, hoods, deck lids, is they actually want the corners to be pinched
off and they'll tell you when, where and how much to actually pinch off. And it's
kind of important because as you look at this bead on a vehicle if water builds
up along that edge it needs a place to drain. By pinching off that corner it
allows the water to drain off the vehicle out onto the road, garage floor
surface, whatever it might be as long as it's not staying on the vehicle and
starting to damage the finish. So that's it for this bead here today. For more
information on all their seam sealers go ahead and check out our information at
3M Academy in the link below. Also if you like this video go ahead and hit the
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information as we're releasing it and you're staying up-to-date on the best practices
in the industry. That's it for this video, thanks for watching, we'll see you guys
next time.