Hydroxyethyl methyl cellulose(HEMC) he polymer hiki ke hoʻoheheʻe ʻia i ka wai i hoʻohana mau ʻia ma ke ʻano he mānoanoa, gelling agent, a hoʻopili. Loaʻa ia ma ka hopena kemika o ka methyl cellulose a me ka waiʻona vinyl chloride. He mea hiki ke hoʻoheheʻe maikaʻi ʻia ka HEMC, a ua hoʻohana nui ʻia i nā kula e like me ka uhi ʻana i ka wai, nā mea kūkulu hale, nā textiles, nā huahana mālama pilikino, a me nā meaʻai.
I loko o nā uhi wai, hiki i ka HEMC ke pāʻani i ka mānoanoa a me ka mana viscosity, e hoʻomaikaʻi i ka flowability a me ka hoʻopili ʻana i ka hana o ka uhi, e maʻalahi ke noi a hoʻopili. I nā mea kūkulu hale,MHEC mānoanoahoʻohana maʻamau ʻia i nā huahana e like me ka mortar hui maloʻo, ka mīkini sima,paʻa kiʻi kiʻilima, etc. Hiki iā ia ke hoʻonui i kona adhesion, hoʻomaikaʻi i ka flowability, a hoʻomaikaʻi i ka pale wai a me ka lōʻihi o ka mea.