- In this video, I'm gonna show you how to
fill some minor imperfections in a plastic bumper cover.
Okay. We're gonna apply some adhesive over this
to fill these imperfections, these lows
and then we'll block it out and get it ready for prime.
But before we do that
you notice there's a few glossy spots right here.
You wanna get rid of those
before you start applying your filler, your adhesive.
So I'm just gonna use this grinder
and I'm gonna lightly sand in there
to get rid of those glossy spots.
(loud grinding sounds)
Yeah. If you don't get rid
of those glossy spots, chances are,
it might not stick well.
Might have adhesion problems.
Next I'm a blow it off with some suppressed air.
(compressed air whooshing)
Make sure it's good and clean.
Do not wanna use any wax and grease remover on bare plastic.
That can cause adhesion problems down the line.
So now that we've sanded,
the glossy spots got rid of that.
Now we need to use some adhesion promoter.
This one's from 3M.
There's different companies that make it
but this provides adhesion to polyolefin
which is like bumper covers.
Have you don't use that,
again that will lead to adhesion problems
and the adhesive may not adhere properly.
You don't wanna put this on too thick
because that can actually cause problems as well.
So you just wanna put it
on a light coat over the entire area.
(compressed air whooshing)
Okay. Now we'll let that set for about 10 minutes
and then we'll be ready
to apply our adhesive to fill that low area.
Okay. Now that we've allowed that to dry
I'm gonna go ahead and get that adhesive ready.
And this is a EZ sand multi-part repair
and it's for plastic, flexible plastic.
And you wanna leave these on when you're done
because what will happen this dries in the tube.
And that actually completes a,
it makes a really good seal
to keep this from getting hard in there.
So I'm gonna take this off.
And then what I wanna do, is I wanna plunge this.
I wanna make sure that one
of those haven't got hard
and that it is coming out evenly.
So we'll put this a little bit on here
and make sure of that.
Let me get this over here, where you can see it.
And one side is clogged up.
You need to unclog it and you can see there
that we do got good material coming out of both sides.
Clean that off.
And now we're gonna remove this
and use it with our new tip.
Just like that. You put that in there.
And now we're gonna screw this back on.
And now before you start applying a
adhesive to this,
we wanna put some in here
cause this tube actually mixes it together.
We'll make sure that it's mixing thoroughly.
So we're gonna squeeze a little bit through here.
Okay. Now we're ready to apply it to the plastic surface.
And I'm just gonna apply,
where this low right here.
I'm apply some right here.
Then you press that back
and I'll keep from gripping on you,
set this over here.
So now just using a body filler spreader
I'm gonna push down real hard
to make sure I push it down in those groves
that I've beat up, clean up.
So I'm pushing down really hard right now.
Push down a little harder right there.
And now I can loosen up on the spreader
and do a fill coat where I'll give it a little bit more.
And I think I may need a little bit more right there.
I'm gonna go ahead and add some,
cause that's where it was low at.
So you got about five minutes
to work this before it starts hardening up on you.
So you got about five minutes
and then wait about 15 minutes
and we'll be ready to sand.
Okay. I put that set about 15 minutes.
I'm gonna kinda test it and see if it's ready to sand.
And I'm gonna sand with the 80 grit
just to level that out some.
What I don't wanna do is sand way out here
and put a lot of straight line scratches out here,
because if I do that,
I'm gonna have to beat, take extra work,
(mumbles) and that scratches that.
So I'm just gonna try
to stay in this repair area and level it out.
(sharp scratching sounds)
Okay. It's still kind of biting a little bit.
I'm gonna let that dry just for a little bit longer
and then I'll come back and finish blocking that out.
Okay. I've got that set just a little bit longer.
I'm gonna go ahead and block it out.
(sharp scratching sounds)
Okay. I've got a pretty level, needs a little bit more
but what I'm gonna do, I'm switching,
gonna switch to DA and some 220 grit
and finish sanding that down and leveling it
and also getting rid of any
of these straight line scratches.
And before I do that,
I'm gonna put a little dry guide coat on here
just to help me identify the highs and lows.
And I'm gonna keep this DA sander and blocking with it.
So you wanna be sure and keep it real flat.
And we're just minimizing the scratches
any straight line scratches to remove them.
(loud sander polishing sounds)
Okay. So I've gotten rid of all the inline scratches.
I've got this down, took a lot
of the filler that was out here off.
Just need to hear where it filled that.
And I feel that, it feels good.
There's no guide coat left.
So that's ready to finish out,
prep it, get it to the booth, clean it
and get some primer surfacer on that,
then we'll block it out one more time
and then it should be ready for paint.
Now we've, could've put some more filler rod in here
and block that out
but I wanted to show you how to use adhesive.
That's another method of repairing.
You can build a patch and, you know, reinforce the backside
which I may show you in a different video,
but in this video,
I just wanna show you how to fill some lows,
some minor imperfections
to get it ready for prime, block and paint.
If you liked this video, be sure and gives a thumbs up.
Thanks for watching.
Take care.
And we'll see you in the next video.