HPMC 400M Hydroxypropyl methylcellulose HPMC is a white, odorless and tasteless powder. The solvent properties in cold water and hot water are different. Products with high methoxyl content are insoluble in hot water above 85℃, while products with medium methoxyl content are insoluble. In hot water above 65℃, products with low methoxyl content are insoluble in hot water above 60℃. Ordinary HPMC is insoluble in organic solvents such as ethanol, ether, and chloroform, but is soluble in 10% to 80% ethanol aqueous solution or a mixture of methanol and methylene chloride. HPMC has a certain degree of hygroscopicity. At 25℃/80%RH, the equilibrium moisture absorption is 13%. It is very stable in dry environments and environments with a pH of 3.0~11.0.

Low viscosity hydroxypropyl methylcellulose HPMC is widely used in gypsum-based and coment-based self-leveling mortars. Self-leveling is a very advanced ground construction technology. Since the entire floor is naturally leveled with little interference from construction workers, compared with the previous manual smoothing process, the flatness and construction speed are greatly improved.

The self-leveling dry mixing time takes advantage of the excellent water retention of hydroxypropyl methylcellulose. Since self-leveling requires the evenly stirred mortar to automatically level on the ground, the water content is relatively large.

Add HPMC and the ground will be controlled after pouring. The water retention of the surface is not obvious, so that the surface after drying has high strength, low shrinkage, and greatly reduces cracks. The addition of HPMC also provides viscosity, which can be used as an anti-sedimentation additive, enhance fluidity and pumpability, and improve the efficiency of paving the floor.

Packaging: Packed in polypropylene woven bags lined with polyethylene inner bags, net weight 25kg per bag. When storing, store in a ventilated and dry place indoors, and pay attention to moisture-proof. Pay attention to rain and sun protection during transportation.