Hydroxypropyl methylcellulose (HPMC) is a nonionic cellulose ether prepared by a series of chemical processing using natural polymer materials as raw materials.
It contains almost all the properties of methyl cellulose (MC) and is your first choice for the production of quality building materials. In order to meet the needs of environmental protection, our factory specializes in the development and production of HD series products for the building materials industry. It has the characteristics of high water retention performance, good dispersibility, good fineness, good workability and convenient dissolution. It is suitable for dry mortar building materials, interior and exterior walls. Water-resistant putty powder (paste), binder, caulking agent, interface agent, water-based paint, self-leveling agent and other new building materials.

In the production of building materials, cellulose ether is an indispensable additive. After adding HPMC, the following performance can be improved:

1. Water retention - enhance water retention, improve the phenomenon of excessive hardening and cracking caused by excessive drying and hydration of cement and gypsum building materials.
2. Workability - increase the plasticity of the mortar, improve the industrial properties of the construction coating, and improve work efficiency;
3. Adhesion - due to the improved plasticity of the mortar, it can better bond the substrate and the adherend;
4. Anti-sliding - due to its thickening effect, it can prevent the occurrence of mortar and adherent slip during construction.

Standard:

1. Appearance: HPMC is white or off-white fibrous or granular powder, odorless.

2. Properties: HPMC is almost insoluble in anhydrous ethanol, ether and acetone. It rapidly disperses and swells in hot water at 80~90°C, dissolves rapidly after cooling, and the aqueous solution is quite stable at normal temperature. It gels at high temperature, and the gel can change with the solution according to the temperature. It has excellent wettability, dispersibility, adhesion, thickening, emulsifying, water retention and film forming properties, as well as impermeability to grease. The film formed has excellent toughness, flexibility and transparency. Because it is nonionic, it can be compatible with other emulsifiers, but it is easy to salt out and the solution is stable in the range of PH2-12.
3. Apparent density: 0.30-0.70g/cm3, density about 1.3g/cm3.

Dissolution method:
When HPMC products are added directly to the water, they will agglomerate and then dissolve, but this dissolves slowly and is difficult. The following three dissolution methods are recommended, and the user can select the most convenient method according to the usage:
1. Hot water method: Since HPMC is not dissolved in hot water, the initial HPMC can be uniformly dispersed in hot water. When cooling, two typical methods are described as follows:
1) Place the required amount of hot water in the container and heat to about 70 °C. The HPMC was gradually added with slow stirring to start the HPMC floating on the surface of the water, and then a slurry was gradually formed, and the slurry was cooled with stirring.
2) Add a required amount of 1/3 or 2/3 of water to the vessel and heat to 70 ° C. Disperse HPMC according to 1) to prepare a hot water slurry; then add the remaining amount of cold or ice water. To the hot water slurry, the mixture was cooled after stirring.
Second, the powder mixing method: HPMC powder particles and equal or larger amounts of other powdery ingredients, by dry mixing to fully disperse, and then dissolved in water, then HPMC can be dissolved, without agglomeration.
3. Organic solvent wetting method: HPMC is pre-dispersed or wetted with an organic solvent such as ethanol, ethylene glycol or oil, and then dissolved by adding water, and then HPMC can be dissolved smoothly.

Product Usage:
This product is widely used in construction, building materials, dispersive coatings, wallpaper paste, polymerization aids, paint remover, leather, ink, paper, etc. as thickeners, adhesives, water retention agents, film formers, Excipients, etc. For example, it is used as a binder, thickener and water retention agent in building materials, as a film-forming agent and thickener in the coating industry, and also widely used in oil drilling and daily chemical industries.

Products are packed in 25 kg multiply paper bags or other containers according to customer's requirements. Package's design, charactor and logo also can be changed.

Customer can also choose harbor among Qingdao, Shanghai, Tianjin or other cities.

Located in Shanghai, Chuxin has its own manufacturing factory devoted in chemistry for more than 30 years, providing hundred kinds of chemical products by million tons annually and has established steady business relationship with dozens of industrial top enterprises during decades. We are experts of oil drilling auxiliary, detergent, rubber additives, plastic additives, water treatment chemicals and food additves. After success in China market, we start to plough our cause abroad. Chuxin welcome cooperators from all around the world, looking forward a long-term partnership with our friends. We trust our sincere efforts could change the market and help people improve their situation, may us bring a better life to global consumers.

We are trading company belonging to parent factory, welcome to visit our office in Shanghai.

Our MOQ is 1000kgs (1 ton) or I M3.

Yes, we could offer the sample for free but not including shipping fee. The cost depends on sending method, plz contact us for more information if you want samples.

About 7-10 days according to the quantity. If you want more than 100 tons, time would be discussed cuz the goods may out of stock. Thank U for understanding.

T/T , PAYPAL and WESTERN UNION are all OK, payment could be divided considering the amount.