Ottawa
Valley Associated Railroaders
Celebrating
50 years of railroading!
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Weathering With Chalks Over the past years I have tried many of the weathering techniques published in monthly magazines as well as methods developed on my own. The most accurate, and easiest to use, are chalks. This is based on my own experiences. There was an article published by Model Railroader in December, 1972 that gave a chart showing the mixtures of various chalk colours that can be used for all weathering projects.
The chalks mentioned in the 1972 article are still available today –
from places such as Wallack’s in Ottawa, White Rose or art supply stores. They
are made by Nupastel and are oil based chalks. For a complete set obtain the
following : 203, 204, 213, 217, 219, 223, 233, 239, 243, 248, 257, 263, 273,
277, 283, 298, 343 and 353. All these numbers have a ‘P’ after them.
The following is a listing of the chalks to use, as a mixture, to weather
the various modeled items : Rust
213P, 243P (extremely
realistic mixture) Locos
– General 219P, 223P, 239P, 353P Car
Roofs
223P, 239P Car
Sides, Ends 263P, 273P, 343P Car
Floors
203P, 213P, 239P Passenger
Sides, Ends 248P Passenger
Roofs 219P, 223P Reefer
Sides
217P, 243P, 257P Calcium
277P People
219P, 239P
These chalks can be easily brushed on to the modeled item until it looks
right. If you’ve put on too much chalk, simply remove it with water, rubbing
alcohol or spit. Although, spit has a tendency to thicken the mixture. Once
you’ve reached the weathered effect you like, it can be preserved with a spray
of Dullcote. One major thing to point out here – the Dullcote will lighten the
weathered effect. From experience, the best way to approach this is not to over
weather. That is, weather with the chalks until you feel it is right. Then
protect with Dullcote. Wait until it dries and then apply more weathering chalk
as needed. Another coat of Dullcote, etc.
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