Isopropyl Alcohol and india Ink mixture. Dilute mixture, maybe 1TBS ink in a 16 oz of alcohol. That's my concentration anyway, others will have different mixtures. Similarly, you might see AC which would be the alcohol/pastel chalk technique Brett describes in the manuals or in the "University" videos.
Danny, as Jim states A/I is a mix of alcohol and Ink (india ink, black), to create a wash which enhances crevasses, depth and shadows in our models. The recomended type of ink is specified on the "University" main page, along with many other supplies. https://sierrawestscalemodels.com/university.html
It is used in many aspects of modelling and is very versatile.
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Similarly, you might see AC which would be the alcohol/pastel chalk technique Brett describes in the manuals or in the "University" videos.
as Jim states A/I is a mix of alcohol and Ink (india ink, black), to create a wash which enhances crevasses, depth and shadows in our models.
The recomended type of ink is specified on the "University" main page, along with many other supplies.
https://sierrawestscalemodels.com/university.html
It is used in many aspects of modelling and is very versatile.