Dear Dr. Emarsili,
I am Pankaj Singh, Technical Director, Crystal Nanoclay Pvt.Ltd. We are high quality manufacturer of Nanoclays for various polymers.
Roughly you can expect Nanoclay prices in the range of USD 6-10/Kg on FOB basis for commercial quantities.However, DDP prices varies greatly from country to country.
If you need any further information for prices in Europe or any thing else, you can mail me on pankaj@crystalnanoclay.com