HOW TO: Replicate a Door Skin Seam Sealer Bead on Toyota and Lexus

HOW TO: Replicate a Door Skin Seam Sealer Bead on Toyota and Lexus


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 thumbs up indicator, check out some of
the other videos on our channel, hit subscribe below so that you get the most
updated information as well as that notification bell over here in the
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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.

About the Author: Michael Flood

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