Thread: Discussion Litho-Plate Aging, Weathering
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Old Sep 22, 2012, 05:17 AM
rockhound1218 is offline
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"A weak lye solution etches aluminum, producing a grainy finish that ranges from light to dark gray, and sometimes a iridescent rainbow shine. The strength of solution, temperature (!) and time of exposure make huge differences in the finish you get."

This was the strength I used, it worked quickly(10-15 Min. soak) and the color was just ok. I used approximately 10 crystals Draino to 4 ounces water.

I know that More doesn't = Better ! Glad I stick to this motto.

I'm still searching up and down the PH Scale to find the right stuff.

Today I'll try some Pool Chlorine.
Regular table salt in a hot bath.
If those don't work I'll run them through the Dish Washer..... that always turns my Aluminum pan Darker Ha !

I belong to a Mineral Club, Science dudes there could recommend the the proper chemicals, mix it for me and give instruction on proper usage .
We meet once a month so I'll have to wait till next week.
I don't have the knowledge to mix chemicals on my own. I know of certain mixtures that are deadly poisonous or burst into flames ! So I leave that to the experts. If I need to wear a gas mask or flame retardant clothing all for "Aged Aluminum" , I don't want it !
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