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Secondary water washed kaolin mined in Florida. It is kind of plastic and very white compared to most other American kaolin. It has excellent casting properties. It's not plastic enough to throw dead bodies, so it should be augmented with more plastic kaolin or with a plasticizer such as bentonite or hectorite. EPK is considered by many to be the best North American kaolin for use in suspending glass because it tends to produce a thixotropic slurry. Usually 15-20% gel glaze makes a bit less, so when a piece is dipped in slurry and removed it drips quite a bit and the wet glaze stays in place for the time it takes to remove the water. Because EPK is so close to theoretical kaolin chemistry, it would make up for any other kaolin that can make the same claim (such as Pioneer). This material is mined and processed in Edgar Florida. It is hydraulically extracted (a high pressure water stream is used to wash the mud/sand mixture from the bank into a small lake). The slurry is pumped from the bottom and transferred to vibrating screens that separate the sand and classify it into volumes. The slurry passing through sieves is pumped into a pond and settled with the help of flocculant. Then the slurry is dried and the flocculant is neutralized. The main product in this mine is high-quality white sand, and clay is a by-product. The company is confident that there will be reserves for the next hundreds of years or more and the quality will remain constant throughout the life cycle of the deposit. CaO 0.18, MgO 0.10, K2O 0.33, Na2O 0.06, P2O5 0.24, TiO2 0.37, Al2O3 37.36, SiO2 45.73, Fe2O3 0.79. Source: Digital Fire