I have a question regarding the tanning of sturgeon skins into leather. After giving a lime / sulfide liming solution to remove epidermis i noticed that the bony plates along the skin began to loosen and some fell away. Could someone with experience with this material give some suggestions for a suitable liming bath?
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This response submitted by Bruce Rittel on 6/8/02. ( Rittel@mindspring.com ) 188.8.131.52
Real Fish skin leather is made very much the same way other leathers are - except that instead of dehairing - you de-scale them and then use the Liming solution to pulp and loosen the outer epidermal layer of skin so it can be removed. After that its - kill the Lime, acidify the skin, pickle (you also will degrease it heavily here), neutralize, tan and oil it.