HEMC Used For ETICS Or EFIS

1. Gerneral IntroductionHydroxyethyl Methyl Cellulose (HEMC) is made by high purity fine cotton through series of chemical processing under alkaline conditions. It do not contain any organs of animals, fat or bioactive constituents.Hydroxyethyl Methyl Cellulose (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 Cellulose is made by introduction of epoxy ethane substituent on the basis of Methyl Cellulose, it has higher gel temperature and better resistant to saline compared with unmodified polymer. 2.Commodity InformationName: Hydroxyethyl Methyl Cellulose (HEMC)Other name:  2-Hydroxyethyl methyl cellulose; Cellulose methyl hydroxyethyl ether; Methyl hydroxyethyl cellulose (MHEC); Cellulose,2-hydroxyethylmethylether; CAS No.: 9032-42-2HS CODE: 391239003.Properties1)Solubility. Soluble in water (even cold water) and some organic solvents and solvent-water systems due to the hydrophobic 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 excellent viscosity stability even for long time storage.4) PH 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 hydrophily.7) Other properties. Thickening agent, film former, adhesives, lubricants, suspending agent, shape retention, etc.4. Function in ETICS/EFISAs 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 Cellulose(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 indexTypes ItemsViscosity 2%       BrookfieldMethyl Content %Gelling Temperature℃Moisture %Application fieldSMC45007 27,000-35,000 22.0-32.0 60-90 ≤ 5.0 ETICS/EIFSSMC46006 34,000-44,000 22.0-32.0 60-90 ≤ 5.0 ETICS/EIFSSMC43801 33,000-44,000 22.0-32.0 60-90 ≤ 5.0 ETICS/EIFSSMC4070 14,000-22,000 22.0-32.0 60-90 ≤ 5.0 ETICS/EIFS6. PackagePacking: 25kg or 20 per kraft bag with PE inner              350kg per jumbo-bag. Bags can be designed according to customers’ demands.7. Storage1) 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 pharmaceutical application. Observe the precautions as mentioned in the MSDS.3) The products should be prevented from water and avoided damaging during transportation. 8. CertificateCertificate 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 productWe can do OEM production. Welcome send us sample or index you want to import.