In this video I'm going to paint two garage doors. This is the first door which is
looking dated. You will also notice that I have removed the door handle so that it can
be opened from the inside only. I have covered the hole using a small piece of
stainless steel which has been stuck to the door using grab adhesive. This
door is being painted because I'm going to use it for a halloween projector. The
second door is in much worse condition and there's paint flaking at the bottom,
it also has a couple of aluminum vents that need painting at the top.
Both of these doors are going to be sprayed using the Wagner Flexio sprayer
using Zinsser Perma-White external paint. If you don't have a
sprayer you could use a brush and a roller but you get a far superior finish
using a sprayer. I'm mainly going to concentrate on the first larger door but
will show some footage of the smaller door as more work was required on that
door. To start off with I have put a dust sheet down on the floor this is plastic
backed and so no over spray can penetrate the sheet. I have cut the
dust sheet and taped it to the floor using gaffer tape.
Above the first door is a galvanized lintel the paint is peeling from it badly because the
incorrect or no primer has been used. There is also a loose bead of silicone
which will be removed and replaced later.
Removing this paint was difficult and time-consuming in the end I used the
angle grinder and the paint remover disc. It's now time to clean the
whole surface. To do this I've used Zinsser Universal Degreaser. I am even
cleaning the silicone around the edge as I want to paint over this instead of
replacing it.
On the first door there is some form sticking through the gaps so I'm
removing that before cleaning the rest of the door.
I have cleaned half of the door here so that you can see how dirty it was to begin with.
On the second door I had to spend a while with the sander to remove any of
the loose paint before cleaning it with the Universal Degreaser. If you think the
paint on the door may concern lead it is essential that you wear a suitable
dust mask. If you have a pressure washer it might be a good idea to give the door
a blast a few days before to remove as much of the loose paint as possible.
It's now time to mix up some primer. I'm using Zinsser B-I-N for the silicone as I
have used this previously. For the bare metal I'm using Zinsser 123.
Both of these primers are over paintable after one hour.
I'm priming the galvanized lintel,
the stainless steel piece in the center
and on the other
door I've primed where the loose paint had been removed as well as the
aluminium vents at the top. The silicone on both doors was really badly discoloured
I did try cleaning this using Universal Degreaser and also methylated spirits
but it would not come clean. I thought I would try painting over the silicone and
if it was not successful I could replace it at a later date.
I've primed the silicone using the Zinsser B-I-N and gave it two top coats of Perma White and
surprisingly the paint took to the silicone and it looked great.
There are a lot of different silicone formulations so this might not work on
all types of silicone.
Because the top coats of paint are being sprayed on to
the door we need to do a really good job of masking everything off.
Firstly the
masking tape was applied where I wanted the paint to stop, then clear masking was
tapped to the masking tape using gaffer tape and masking tape. It's really
worth spending the time here to get everything perfect as the last thing
you want is overspray or a un neat edge.
Surprisingly the Wagner Flexio delivers the paint really well with the
minimum of overspray. It's well worth the extra effort of masking everything off
because the paint finish is much better than you would get with a brush or a roller.
It is important you mix the paint correctly and ensure that it is suitable for
spraying. Zinsser Perma-White works really well for spraying but it is essential
that the correct mask is worn during the spraying operation. Before spraying the
door I have tested out the spray pattern on a scrap piece of cardboard.
The nozzle on the sprayer can be rotated so that the spray can be used to spray
vertically or horizontally.
To start off with I'm doing the two edges of the door
ensuring the spray nozzle is adjusted to the vertical spray position.
This spray is covering the edges of the door as well as the silicon
which was primed earlier with the Zinsser B-I-N.
I've now adjusted the nozzle for horizontal spraying and I'm starting to
spray at the top of the door and I'm working from side to side and down.
It's surprising just how quickly you can cover a large area with a sprayer and get
a brilliant finish.
After two hours have passed I've given the door another coat and then removed
all of the masking and masking tape.
Once this paint has dried fully it should resist any mould growth for five years
and it should last 10 to 15 years before it needs painting again. The
finish on both doors was absolutely superb and I was really happy that I
did not have to replace the silicon, as it is time-consuming getting a neat bead
next to rough bricks.
I hope you've enjoyed watching this video if you have and you haven't done so
already please subscribe to the channel.