HEMC(Hydroxy Methyl Ethyl Cellulose)
Introduction
HEMC provides a great deal of practical benefits, such as optimum consistency and workability with low stickiness, high standing strength and high yield and helps control crucial properties
Product Properties
Constitution | Methyl hydroxy ethyl cellulose |
Appearance | White Powder |
Substitution degree | Standard etherification |
Ionicity | Nonionic |
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 |
Application Fields:
Tile Adhesive
● Good water retention: prolonged opening time will make tiling more efficient.
● Improved adhesion and sliding resistance: especially for heavy tiles.
● Better workability: lubricity and plasticity of plaster is ensured, mortar can be applied easier and quicker.
Cement Plaster / 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.
● Increased water demand: increased open time, expanded spry area and more economical formulation.
● Easier spreading and improved sagging resistance due to improved consistency.
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.
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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.
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Name | Viscosity (NDJ, mPa.s, 2%) | Viscosity (Brookfield, mPa.s, 2%) |
HPMC | 320-480 | 320-480 |
HPMC | 48000-72000 | 24000-36000 |
HPMC | 80000-120000 | 40000-55000 |
HPMC | 120000-180000 | 55000-65000 |
HPMC | 160000-240000 | Min70000 |
HPMC | 48000-72000 | 24000-36000 |
HPMC | 80000-120000 | 40000-55000 |
HPMC | 120000-180000 | 55000-65000 |
HPMC | 160000-240000 | Min70000 |