Damascus;

In the Swiss Black formula, I assume that you mean to add more Alcohol when ambient humidity is very high????? I have been using 95% grain Alcohol (made for human consumption)in my Swiss Black formula what type of Alcohol do you use for this formula? I have thought of trying 91% Isopropyl Alchol.

Bv
Originally Posted By: damascus
One of the finest formulas for obtaing very high gloss finish is Swiss Black (Beutel) formula because it contains no Nitric or Hydrochloric Acid so it does not attack the metal surface too aggressively. Hence you end up with finer rust particles and only extremely fine surface pitting. Also you can adjust the aggressiveness of the formula by adjusting the amount of Alcohol used this allows for humidity and temperature variations. Though it takes a lot of passes to obtain a rich dark colour hence the high cost of having barrels blued this way.