[WHOOSH]
-Hey.
This is Donny Smith, and welcome back to another DIY auto body
paint Q&A. And today we have a question about paint mottling.
This is a paint problem that you have with metallics, pearls.
And we're going to answer that.
First, I'd like to mention our sponsor
of this video, collisionblast.com.
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OK, well, I had a question about mottling.
noyreds2000 said that he's having problems with mottling.
He's wanting to know how to fix that.
First, let me explain what that is, just in case
the you're not sure what mottling is.
That is where the metallics bunch together in spots.
It kind of looks blotchy.
You'll see where it looks maybe lighter where
more metallics has gathered in little spots.
It looks real spotty or blotchy.
Sometimes it's very noticeable if it's really extreme,
and sometimes you have to look at it real close to see it.
But that's what mottling is.
And what causes that-- there are a couple things,
but I'm going to give you the things that I see most that
cause this problem, and how to correct it.
It could the reducer you're using, putting it on too wet,
putting your base coat-- or in this case,
he was talking about a tricoat.
Mottling can happen in your base coat or tricoat.
And it's going to be a metallic or pearl color.
You put that on too wet, chances are
it's going to mottle on you.
So you don't want put it on too wet.
For example, base coats, tricoats,
you do not want to put on full wet coats.
If you're putting it on, and you spray it,
it looks like clear coat is on there when you're
putting your base coat on or your tricoat on,
you're putting it on too wet.
You do not want to achieve that depth at this time.
You're wanting medium-wet coats, and you
don't want it to get too wet-looking while you're
spraying.
That's when the clear will-- when you put clear on,
you want that go on real wet, full wet coats.
So probably the most common mistake
I see that causes mottling is putting the base coat
or tricoat on too wet.
And the way to eliminate that is to put on lighter coats.
Don't put it on quite so wet.
The second thing that causes it is
if you don't allow your base coat
or tricoat to flash off properly and then clear coat it.
So you've got your base coat on there, or your tricoat,
and it's still not fully flashed.
All the solids haven't gassed out.
And you put your clear coat on top.
Basically, that clear coat can set there and soften all
that, all the metallics up and twist them
and make it do mottling as well.
So putting your tricoat on too wet,
or putting your clear coat on too soon,
or putting too many tricoats on back to back
and not allowing them to flash, that will all cause it.
Is one of those don't fix your problem,
then you're either trying to shoot a little bit drier coats
or allowing it to flash more before clear coat,
you might make sure that you're using
the proper reducer for the paint.
Make sure it fits within the temperature and all that.
So if you work with those first two things,
that's probably going to cure your problem.
Try those two, and let me know if that fixes it.
And if you have any other questions,
be sure to just ask in this video or any of my videos.
I try to come back and answer them either
through typing them, or I make some of these video responses.
But I do try to get to most of them.
Maybe I miss one every once in a while.
It may take me a little bit of time to get caught up
and get to them, but I will try to answer your questions.
And I appreciate everyone for watching these videos
and asking questions.
And I'll do my best to answer them.
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Share it with your friends.
It'll be a resource.
They'll appreciate you for sharing it with them.
Perhaps they're having some type of issue with their pain
as well.
So that's it for this DIY auto body
paint Q&A. I want to thank you for watching.
And we'll talk to you next time.
[WHOOSH]