S-644 – Knoblochs Pickle oil pre-oils the skins in the salt, pickle and/or tanning solution. It oils not only from the flesh side of the skin but also from the epidermis side. This is great benefit because it helps make more supple and softer leather. It also helps to reduce shrinkage. This product is compatible with all types of pickling and tanning solutions. Van Dyke’s offers a variety of Knoblochs Chemicals. Containers ordered by the quart.