weathering product

[retroguy]

can some of the craft chalk be used for weathering...

[Ace-Garageguy]

Model train guys have been using chalks for weathering for decades.

[SfanGoch]

Sure; it won't be permanent, though. Check out AK-Interactive, Mig Products, True Earth. These companies make weathering pigments.

[Ace-Garageguy]

Here are some links for specific info and procedures. While Joe is entirely correct about the effects being less-than-permanent, especially if handled, you CAN use a spray fixative or even dullcoat to make the effects quite stable.

https://www.caboosehobbies.com/catalog/techtips.php?techtip_id=5

http://cs.trains.com/mrr/f/88/t/181333.aspx

http://modeltrains.about.com/od/modelrailroadtrains/ss/weatheringwithchalks.htm

Edited August 20, 2016 by Ace-Garageguy

[SfanGoch]

The problem with spraying a fixative on chalk or dry pigments is that they will absorb the fixative and darken,and in some instances, very significantly. My POV is from my primary interest in modeling AFVs. The petroleum and oil based weathering products impart a more realistic look and are better suited to handling.

[935k3]

The weathering sets from Tamiya work good. Set D is great for staining exhaust systems.

 

[Jantrix]

I've used this and like the product. It is a powder that becomes adhesive when burnished down. It does lose some color though when you clear over it.

 

[retroguy]

thanks for the info and tips guys