Kalmbach - Model Railroader - Weathering Tips And Techniques.pdf

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PRODUCTS
I NFORMATION S TATION
Weathering tips
and techniques
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Weathering
PHOTOS BY JIM FORBES
I read an article on weathering in
which the author stated that every-
thing should be weathered. My reaction
was like that of most beginners: Why
weather anything? I felt my cars and
locomotives looked quite realistic out of
the box, so how could gunking them up
help? I also worried that I’d ruin a per-
fectly good model.
Why weather?
“Weathering” is a catchall phrase
used to describe finishing a model to
duplicate the effects of time and use.
Since it doesn’t actually rain, snow, or
beat down with relentless desert sun on
our layouts (at least I hope you don’t
have those problems!) we need to resort
to other materials and techniques to
duplicate the ravages of Mother Nature
in our plastic and plaster worlds.
But don’t fall into the trap of weath-
ering every model to the same degree.
This is as bad for realism as no weath-
ering at all. Instead, weather models to
reflect various ages, maintenance prac-
tices, and locales.
For example, older cars should be
weathered more than newly painted
cars or brand-new equipment. Automo-
biles in daily use may look worn but
they’re rarely rusted through, especially
today’s autos which feature paints
designed to prevent rust and corrosion.
A wash of Polly Scale Grimy Black (9 parts
Polly S airbrush thinner to 1 part paint) pro-
duces a basic road grime. Cover the entire
model so the paint won’t dry spotty.
Pastel chalks, available from art supply
stores, are great for rust or heavy road dirt.
Apply the chalk with a brush. I add more
than I need, then brush away the excess.
If the car looks too filthy, simply moisten
your thumb and rub it along the side of the
car in a vertical motion. This removes most
of the chalk from the model.
Combining these techniques – a wash of
Grimy Black and Rust paints, followed by
rust-colored chalks – makes a night and day
difference between the roofs of these cars.
Frequently I’ll combine all three (air-
brush, wash, and chalk) on one model.
The most basic weathering is elimi-
nating the plastic sheen from models.
This single step does more to increase
realism than anything. Painting all your
trucks and wheels flat Grimy Black also
helps since it eliminates that “floating
on air” look shiny trucks impart.
The difference between an unweath-
ered and weathered model is really star-
tling, as the lead photo shows. The
photos and captions explain how I used
washes and powdered pastel chalks to
age some N scale freight cars. The same
techniques can be applied to buildings,
roads, vehicles, locomotives, and even
figures. Now get dirty.
Weathering techniques
I do a lot of weathering with an air-
brush but I also use washes and chalk.
1
B ack when I got started in the hobby
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&
freight car weathering
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Easy ways to make rolling stock
look more realistic
In September 1948, an aging New Haven 2-8-2 hauls a peddler
freight toward its next destination on John Pryke’s HO scale layout.
With a little prototype knowledge and an airbrush, John can apply
weathering in a matter of minutes.
By John Pryke • Photos by the author
required to spray the paint through a fine airbrush tip with-
out clogging. Weathering color choice is also dictated by a
railroad’s operating region. The color you choose to represent
dirt and dust on a car’s trucks and underbody is based on the
area of the country that you model or on a car’s home road.
Table 2 shows some suggested truck and underbody colors
for cars from different locations in North America.
degree of realism, but also tend to be time-consuming.
If your layout has a large number of freight cars, you
probably don’t want to spend an entire evening weathering
just one piece of rolling stock. As an alternative, I’ve developed
a quick and dirty weathering method that requires only basic
airbrushing skills and a little knowledge of the prototype.
Quick and dirty weathering
By using an airbrush with a fine tip and readily available
enamel or acrylic model paints, you can weather one car in a
few minutes or a batch of ten cars in less than an hour. It is
important to follow each step in its proper sequence, as some
prototype weathering (faded paint on side panels, soot on
vertical side ribs) takes place over a long period, while other
weathering (ballast dust on the underbody and accumulated
Color selection
There are many paints on the market made specifically for
weathering. Table 1 lists the water-based acrylic and organic-
solvent-based enamel paints I used to duplicate the weather-
ing pattern shown in fig. 1. It also lists the dilution formula
M any freight car weathering techniques produce a high
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