Building Material Hemc Mhec Hec Hpmc Wall Putty Powder Hydroxyethyl Cellulose

——MHEC is an odorless, tasteless, non-toxic white powder that dissolves in cold water to form a clear, viscous solution.

——MHEC has the properties of thickening, bonding, dispersion, emulsification, film formation, suspension, adsorption, gelling, surface activity, water retention and colloidal protection. Aqueous solution can be used as colloid protector, emulsifier and dispersant due to its surface active function.

——MHEC aqueous solution has good hydrophilicity and is an efficient water retaining agent.

——MHEC contains hydroxyethyl group, so it has good mildew resistance, long-term storage has good viscosity stability and mildew resistance.

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Product Introduction

Hydroxypropyl methyl cellulose (HPMC) is a non-ionic cellulose ether made from natural polymer cellulose by etherification. It is an odorless, tasteless and non-toxic white powder that swells into a clarified or slightly turbid colloidal solution in water. It has the characteristics of thickening, dispersing, emulsifying, forming film, absorbing surface activity, retaining water, protecting colloid and so on.

WATER RETENTION

Substantially reduces the loss of water into absorbing substrates in formulations like cement renders,tile cements,gypsum plasters,etc.

The water retention ability of MHEC also strongly enhances the adhesion strength of thin-bed mortars. This is because the

binders in the mortar such as the cement and gypsum have enough time for hydration and the same time do not lose water.

LONG OPEN TIME

Less skin formation and high water retention through MHEC ensure better quality during longer working time on the

field. Suitable addition rate of

MHEC ensure longer open time higher tensile adhesion strength and better workability.

SLIP RESISTANCE

Slip resistance is crucial in order to improve working efficiency in applied tile cement mortars on walls. With suitable MHEC grades and concentration levels,heavy tiles over 50 kg can be applied to walls without slipping.

EASIER WORKABILITY

Better leveling and reduced stickiness of MHEC can be applied easily to thick layers of EIFS.

Product Specification

ITEM	RANGE
Hydroxyethyl content	7-12％
Methoxy content	21-26％
Ash	≤5%
Viscosity	20,000-200,000 mpa.s
PH	5-8
Purity	99%
Light transmittance	≧80％

Example Application

Hydroxyethyl methyl cellulose (HEMC/MHEC) is widely used in water-based latex coatings, building construction and building materials, printing ink, oil drilling and other aspects, plays the role of thickening water retention, improve the construction property, used in wet and dry mortar series products.