ALUM TAN
Ph =3.8-4.0 Tf = 70
For every 1 Lb. of Wet Drained Skin Weight, add:
2 Qts. Of Water (425%)
3.2 Ozs.of Alum* (20%)
4 Ozs. of Salt (25%)
* Aluminum Sulphate, Ammonium Aluminum Sulphate, or Potassium Aluminum Sulphate can be used interchangeably in this formula. Use Soda Ash to adjust the Ph level. Allow the skins to tan for 3-5 days.
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