MaiSi® Cellulose Ether MaiSi® specialize in industrial grade cellulose ethers, including HPMC, MHEC and HEC. We also offer a redispersible polymer powder product, which forms a complementary technology to our MaiSi® cellulose portfolio. View HPMC Products View HEMC Products View HEC Products VAE RDP VAE Re-dispersible Polymer Powder View Products