Tannin Thinner/ Chrome-free Thinner/Tanna Thin/Tannin Acid: Organo-Thin is processed out of plant material in the form of Tannic acid, a commercial form of tannin, is not a true acid but an acid-like substance called a polyphenol. Organo-Thin is a superior deflocculant at temperatures exceeding 450�?�°F. It has a calcium tolerance to 5,000 ppm and is completely tolerant to monovalent cations. It is non-toxic and environmentally safe. A mud thinner, but it does not disperse the mud however higher penetration rates are noted resulting in lower drilling costs. It can formulate further to be equivalent to SLB's Tanna-Thin