How to make scrapings.

by Umberto Bonomi

I want to share with you the method I use to make the scrapings on the models. This is an extremely simple method that gives professional results. Indispensable for this process is any brand of liquid mask, I find myself very well with the liquid mask Vallejo 70.523. In the following tutorial, in particular I used two Painter’s spray primers, the Leather Brown as a background and the Necrotic Flesh as a finish. You will also need a sponge (like those of the miniatures carrying cases) and a tweezers.

This method of scrapings makes it very well if the model to be treated is not yet assembled and it is possible to color its most insidious parts before proceeding with the final assembly. The piece in question is the tail rudder of a SSU helicopter.
To start, we clean the piece by removing the remains of the support and any molding lines.

The clean piece.

Then proceed with giving a first coat of primer background, this is the color that will appear under the final paint and should be a contrasting but realistic color. A brown (anti-rust primer), a gray (the factory floor) etc. In our case we use the above mentioned Brown leather as a base.

The piece with the background color.

It’s time to apply the mask. Helping us with a small piece of irregularly torn sponge and tweezers, we apply the mask at the points where the wear would remove the final varnish

The mask applied.

After letting the mask dry half an hour, let’s give the final primer coat (the Necrotic Flesh) without exaggerating with the layer.

The piece with the final color.

Now is the moment of magic: with a brush with rigid bristles (or rather metal), rub the piece and remove the mask. In the most difficult points, use the toothpicks or other similar tools.

The finished piece

As you have seen, the result is excellent. To start I suggest you to cut out plastic rectangles and do some tests on these, look for reference photographs of the vehicles you want to color and try to apply the scraping selectively on the most exposed parts. Hoping that this tutorial will help you, I say you goodbye.


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