Heres a recipe for tanning
Alum - 1 Gallon of Water (8.5 Lbs.)
1 Lb. of Non-Iodized Salt
12.8 Ozs. of Aluminum Sulphate
OR
12.8 Ozs. of Ammonium Aluminum
Sulphate
OR
12.8 Ozs. of Potassium Aluminum
Sulphate
1 Gallon of Water (8.5 Lbs.)
The following formulas are the basic standard formulas most commonly used throughout
the tanning industry. They are intended for "static» use, such as "Garbage Can" Pickling,
or in a Paddle Vat, where they receive mild agitation. All Pickles should be stirred daily
1-2 times, the temperature kept at 65-80 degrees Fahrenhiet, and the Ph level checked
frequently. We highly recommend that for a complete Pickle effect, you leave your skins
in the Pickle for 3 days before removal, draining, shaving, degreasing, washing, rinsing,
and returning them to the Pickle. The usage percentages listed below are based on
drained wet skin weight. For example - to find out how much Salt to use per 1 Lb. of
drained wet skin weight: Multiply the drained wet skin weight (in Ozs.) times the
percentage (.05 = 5%). This will give you an answer in ounces. Divide this answer by 16
to get the answer in pounds.