... shell is removed, it can be dyed. The preferred dosage is 2-3g/l. (3) Cotton wool lian, ... 5) Usage in asbestos: for froth asbestos, the preferred dosage is 10-15% of asbestos; for dustless asbestos, ... the preferred dosage is 15-20% of asbestos.(6) Usage in tanning ... product is usually mixed with jfc, and the preferred dosage is 0.5-1.0%. For tanning additives, the ...