Birchwood Technologies Patinas (cold application)
All Birchwood Technologies patinas are considered traditional patinas that will age or darken metal.
Birchwood Technologies makes different formulas for the different metals. For bronze, brass and copper there are choices of brown or black applied by spray, brush or immersion. There are separate formulas for iron, steel and aluminum.
The patina solution comes concentrated and is then diluted from 1 part distilled water to 1 part Birchwood Technologies to 3 parts of distilled water to 1 part Birchwood Technologies. Using the solution too strong will cause many problems.