Perma-Guard - Fossil Shell Flour

Pure Diatomaceous Earth - Food Grade Why the name Fossil Shell Flour®? It was important to differentiate our product from all other diatomaceous earth (DE) products in the marketplace. Perma-Guard DE is milled at a consistency much like flour and is a fossilized shell (diatom) hence the name Fossil Shell Flour®. All diatomaceous earth is not the same. Diatomaceous earth (DE) packaged under the Perma-Guard Fossil Shell Flour® label comes from an extremely pure fresh water deposit of the diatom Melosira Preicelanica. Why is this diatom so special? Its shell is made of amorphous silica. Its shape and hardness are important to how it works. Its hardness keeps it from dissolving in liquid. The holes along the diatom's wall allow it to absorb moisture, hence its use as an anti-caking agent. Animal and bird feeds contain substances such as molasses that cause the particles to become "sticky" . Fossil Shell Flour®, mixed in the feed, coats each particle making it difficult for the particles to