Exactly what sort of problems are you having?
To answer your question, we HIGHLY recommend that no one tries to make their own mix using powdered aluminum. Only use a water-based aluminum paint (assuming your base paint is water-based). Even large paint companies don't make their aluminum paints using powdered aluminum, they use aluminum paste (which is very hard to buy unless you want 55 gallons of it).
The reason is that finely ground aluminum is very reactive with water and water-based products. If the wrong type of aluminum powder is added to such a violent and very hot reaction will take place that will almost certainly start a fire - a very large and hot fire. Don't take my word for it, research it for yourself on the net and you will see what I mean. Before aluminum powder can be added to water-based liquids or emulsions it must first be "passivated" by a chemical process to help prevent the exothermic reaction.
To make matters even worse, these reactions may not be immediate when the aluminum is added, but can take hours, days or even weeks before it happens. I've seen this first-hand; luckily no one was harmed and very little property was damaged.
If you do try to make your own mix similar to BW™ by adding aluminum paint to a neutral gray paint the result will probably NOT be a neutral gray. That is the reason the base paint of BW™ is a pinkish beige color. :nerd:
