Hydroxypropyl methylcellulose is a semisynthetic, inactive, viscoelastic polymer commonly used in ophthalmology as a lubricant, or as an excipient or excipient in oral medicine, commonly found in a variety of products. Function: Hydroxypropyl methylcellulose is used as thickener, dispersant, binder, excipient, oil-resistant coating, filler, emulsifier and stabilizer in textile industry. It is also widely used in synthetic resins, petrochemicals, ceramics, paper, leather, medicine, food and cosmetics industries. Main use 1. Construction industry: As a water retention agent and retarder for cement mortar, the mortar has pumpability. Used as a binder in plastering paste, gypsum, putty powder or other building materials to improve applicability and extend operating time. Used as a pasting reinforcing agent for pasting tiles, marble, plastic decoration, and can also reduce the amount of cement used. The water retention properties of HPMC allow the slurry not to crack due to drying too quickly after application, enhancing the strength after hardening. 2. Ceramic manufacturing industry: It is widely used as an adhesive in the manufacture of ceramic products. 3. Coating industry: As a thickener, dispersant and stabilizer in the coating industry, it has good compatibility in water or organic solvents. As a paint remover. 4. Ink printing: As a thickener, dispersant and stabilizer in the ink industry, it has good compatibility in water or organic solvents. 5. Plastics: forming mold release agent, softener, lubricant, etc. 6. PVC: Used as a dispersant in PVC production, it is the main additive in the preparation of PVC by suspension polymerization. 7. Others: This product is also widely used in leather, paper products, fruit and vegetable preservation and textile industries. 8. Pharmaceutical industry: coating materials; film materials; speed controlled polymer materials for sustained-release preparations; stabilizers; suspension aids; tablet binders; thickeners.