- Hey, this is Donnie Smith and welcome to this lesson.
This lesson, we're going to talk about
masking before priming.
In the previous videos in this series,
we did the body work, the metal straightening,
we applied body filler, we applied putty,
and then we finished it out with 150,
and then we went ahead and prepped the entire fender.
Now we are ready to go ahead and
start to get it ready for priming and prime.
But before we prime, you want a mask and
that is basically the steps to prevent primer
getting to the areas you don't want it.
One important thing to keep in mind when priming
is you don't want it to go anywhere
that you're not wanting to sand,
cause anywhere primer surface or gets,
you going to end up sanding that area.
So for example, any door jam gaps or anything like that,
on the jams, you want to go all the way up
to the edge with you masking.
When you paint, you might drop a little bit
and let the paint wrap around it.
And I also like to mention with priming,
I really don't like to leave edges, you know hard edges.
For example, I'm sure we've all seen
those squares
on car and it's primer,
so they basically just mask
the little square off the repair area and primed it.
I really don't like to correct those hard edges.
Now in this video, I am going to back-mask
and it's going to leave the soft edge
and a lot of times, I don't even like to do that.
However, due this repair, our blend area is very small,
and we can't afford to get any primer in that area,
so I am going to back-mask that.
A lot of times when I am priming,
I'll mask around the car where
it doesn't get on the edges or the car.
Though I am actually priming at,
I'll just use the gun to turn it down,
and just prime just that area and
just let the primer itself blend in,
fade into the panel.
That way I have absolutely no edge at all.
So I'll quit talking and we'll get to the video.
But first, did you know I am Twitter?
You can look me up, I'm @DonnieSmith7.
I encourage you to follow me or
if you are tweeting about something
be sure and use that hashtag
to bring up the collision blast tweets.
Before we prime, we need to make sure
that the adjacent panels don't get primer on them.
A lot of these primers that we have carry a long ways,
which may result in primer getting on an area
that you don't want to paint,
that you are not going to be painting,
so we want to prevent that over-spraying.
So all we are going to do,
we are going to back-mask and any time you are priming,
you want to always go to the edge of everything.
When you are painting you can drop it down a little bit
to where you don't bridge on the edge and have any edges.
But for priming, we go all the way to the edge,
but I am still going to go ahead and back-mask
and the way we do that.
So, I am just down in the edge here
and I am going to around the edges like this.
Pull it up.
And this will give me something to tape to here.
Going to go ahead and do this edge.
And this will prevent any primer
from getting into the areas that
you are not wanting to block sand out.
Because anywhere primer does primer surfacer,
anywhere it gets on the surface at,
you are going to be required to sand that.
So now we got a sticky area right here that
we can mask and I am going to go ahead
and back-mask here just with a piece of paper.
One thing you don't want
and the reason we are doing all this back-masking,
is you don't want any hard edges,
because that is very hard to sand off
when you go to priming.
So what we are going to do,
and even though we are back-masking,
that's going to result in a
softer edge here
if you prime all the way to this edge,
it won't become quite of a hard edge.
But also, I'm not going to try to paint
clear this edge,
trying to build an edge at all.
I just won't over-spray to get in that area
and that should block very easy by doing it that way.
If you go ahead and outline with some paper,
Now you can see that all the way around
the repair area is masked off,
nothing is going to get inside the jams,
because it is masked up all the way to the edges
and that way we can prime
without worrying about getting in those areas.
The power can carry further than this,
so what we need to do to protect the adjacent panels,
is we'll get a piece of plastic
and we'll put it over the entire car
and we'll just cut an area out right here
and then tape the plastic to the masking paper.
Okay, we got this plastic,
we put it over the whole car
and now we are going to cut it out.
Now if you were just doing just a real small area,
you may can get by without covering the whole car,
but I like to do it to be safe,
just takes a couple minutes
to drop a piece of plastic over it
and you know prevent
hours of trying to get it off.
Especially if you have a new car
and you certainly don't want to get over-spray on it.
So we are going to go ahead
and I am just going to cut this out.
If I can grab it.
Just going to cut an area.
Okay now we got the whole car covered,
so there's no over-spray going to get on any of the car.
We have all the edges by back-masking,
which is going to leave a softer edge
and we got a back-mask here,
which is going to leave a softer edge.
And now we can get it ready to prime.
All we need to do now is we'll blow it off
while we do this, wipe your grease remover and tack cloth.
And we going to put a couple coats of epoxy-primer.
We have some metal here,
a little bit of metal showing,
so the epoxy is good with help with corrosion
and it will help with an-e-gents.
We'll get it primed!
And that is one way to mask.
Like I said, there is multiple ways.
That is just the method I use on this car,
so I didn't get over-spray on the blend area.
But there's different ways,
there's a lot of right ways,
there's some wrong ways too.
But anyway, thanks for watching this video
and I will really appreciate if you give this a thumbs up
go down below and give this a like,
leave us a comment,
and if you have a twitter account,
don't forget to follow me at DonnieSmith7
or use the hashtag in some of your tweets.
And remember if something is worth doing,
do your best and have a blast doing it.
Thanks for watching.
Hey, before you go anywhere,
be sure to check out some of my other videos and playlist.
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