Hydroxypropyl Methyl Cellulose
CAS:9004-65-3
Hydroxypropyl Methyl Cellulose (HPMC) is also named as MHPC, are types of non-ionic cellulose ether, which are a powder of white to off-white color, that function as a thickener, binder, film-former, surfactant, protective colloid, lubricant, emulsifier, and suspension and water retention aid. In addition, these types of cellulose ethers exhibit properties of thermal gelation, metabolic inertness, enzyme resistance, low odor and taste, and pH stability. After modified, we can get the product which have long open time, good anti-sagging,good workability etc.
| Appearance | White or off-white powder |
| Methoxy ( % ) | 19.0~ 24.0 |
| Hydroxypropoxy ( % ) | 4.0 ~ 12.0 |
| pH | 5.0~ 7.5 |
| Moisture ( % ) | ≤ 5.0 |
| Residue on ignition ( % ) | ≤ 5.0 |
| Gelling temperature ( ℃ ) | 70~ 90 |
| Particle size | min.99% pass through 100 mesh |
| Product grade | Viscosity(NDJ, mPa.s, 2%) | Viscosity(Brookfield, mPa.s, 2%) |
| HPMC QH400 | 320-480 | 320-480 |
| HPMC QH60M | 48000-72000 | 24000-36000 |
| HPMC QH100M | 80000-120000 | 40000-55000 |
| HPMC QH150M | 120000-180000 | 55000-65000 |
| HPMC QH200M | 160000-240000 | Min70000 |
| HPMC QH60MS | 48000-72000 | 24000-36000 |
| HPMC QH100MS | 80000-120000 | 40000-55000 |
| HPMC QH150MS | 120000-180000 | 55000-65000 |
| HPMC QH200MS | 160000-240000 | Min70000 |
Applications:
Wall putty
- Water retention: maximized water content in slurry.
- Anti-sagging: when spreading a thicker coat corrugation can be avoided.
- Increased mortar yield: depending on the weight of the dry mixture and appropriate formulation ,HPMC can increase the mortar volume.
Exterior Insulation and Finish System ( EIFS )
- Improved adhesion.
- Good wetting ability for EPS board and substrate.
- Reduced air entrancement and water uptake.
Self-leveling
- Protection from water exudation and material sedimentation.
- No effect on slurry fluidity with low viscosity
HPMC, while its water retention characteristics improve the finish performance on the surface.
Crack Filler
- Better workability: proper thickness and plasticity.
- Water retention ensures prolonged work time.
- Sag resistance: improved mortar bonding ability.
Tile Adhesives
- Better workability: lubricity and plasticity of plaster is ensured, mortar can be applied easier and quicker.
- Good water retention: prolonged opening time will make tiling more efficient.
- Improved adhesion and sliding resistance: especially for heavy tiles.
Dry mix mortar
- Easy dry mix formula due to cold water solubility: lump formation can be easily avoided, ideal for heavy tiles.
- Good water retention: prevention of fluid loss to the substrates, the appropriate water content is kept in mixture which guarantees longer concreting time.
Cement Plaster
- Increased water demand: increased open time, expanded spry area and more economical formulation.
- Easier spreading and improved sagging resistance due to improved consistency.
Packaging:
HPMC Product is packed in three layer paper bag with inner polyethylene bag reinforced , net weight is 25kg per bag.
Storage:
Keep it in cool dry warehouse,away from moisture, sun,fire,rain.