Hydroxyethyl Methyl Cellulose (HEMC) for ETICS or EFIS

1. Gerneral Introduction

Hydroxyethyl Methyl lose (HEMC) is made by high purity fine cotton through series of chemical processing under alkaitions. It do not contain any organs of animals, fat or bioactive constituents.

Hydroxyethyl Methyl lose (HEMC) is a tasteless and odorless white or light yellowish powder, which appears to be a transparent viscous solution when dissolved in cold water. As Hydroxyethyl Methyl lose is made by introduction of epoxy ethane substituent on the basis of Methyl lose, it has higher gel temperature and better resistant to saared with unmodified polymer.

2. Commodity Information

Name: Hydroxyethyl Methyl lose (HEMC)

Other name: 2-Hydroxyethyl methyl lose; lose methyl hydroxyethyl ether; Methyl hydroxyethyl lose (MHEC); lose,2-hydroxyethylmethylether;

CAS No.: 9032-42-2

HS CODE: 39123900

3. Properties

1) Solubility. Soluble in water (even cold water) and some organic solvents and solvent-water systems due to the hydrobic groups in its molecule.

2) Surface activity. HEMC has a surfactant property in solution and can act as protective colloid and emulsifier.

3) Mildew resistance. Benefit from the good fungi and bacteria resistance, HEMC has exnt viscosity stability even for long time storage.

4) stability. The viscosity of the aqueous solution is almost not influenced by acid or alkali especially in the range of 3.0-11.0.

5) Low ash content. As the non-ionic product, it has very low ash content.

6) Water retention. HEMC can be used as efficent water retention for its hydroly.

7) Other properties. Thickening agent, film former, adhesives, lubricants, suspending agent, shape retention, etc.

4. Function in ETICS/EFIS

As one of the major building insulation systems, ETICS/EFIS(External Thermal Insulation Composite System/Exterior Insulation Finishing System) is used to apply thermal insulating material and reinforcing mesh to the exterior of buildings. Hydroxyethyl Methyl lose(HEMC) used in this application has following functions.

1) Adhesion strength: HEMC can provide the greatest degree of high adhesion strength of mortar;

2) Performance: During using of distribution method, the mortar added with HEMC has the right consistency, non-sagging. Improve workability and pot life.

3) Water retention: Can easily wet the wall insulation, easy to paste and make other additional materials achieve the best effect;

4) Absorbent: Can minimize the air-entrance volume and decrease water absorbing of the mortar.

5) Delay drying out of the mortar surface.

5. Technical index

6. Package

Packing: 25kg or 20 per kraft bag with PE inner

350kg per jumbo-bag. Bags can be designed according to customers’ demands.

7. Storage

1) Store in a cool, dry, clean, ventilated environment.

2) Material must be handled as a Industrial chemical, should not use as an additive for food or rmaceutical application. Observe the precautions as mentioned in the MSDS.

3) The products should be prevented from water and avoided damaging during transportation.

8. Certificate

Certificate can be provided according to customer’s demands. If need special certificate for the import country or for destination customs clearance please inform us before the order.

9. Special Index product

We can do OEM production. Welcome send us sample or index you want to import.

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