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Emulsion GKE 50-94М

Name
Emulsion GKE 50-94М
Product description

Emulsion GKE-50-94M is an aqueous emulsion of organosilicon liquid oligomethylhydridesiloxane (GKZH 136-157M) with additions of emulsifier, biocides, stabilizers.

Synonyms:  polymethylhydrogensiloxane, polymethylhydrosiloxane, oligomer-containing hydride, methylhydrosiloxane polymer, polymethylhydridesiloxane.

Our products

Water repellent for volumetric and surface treatment of drywall, tongue-and-groove plates, concrete, brickwork, slate, paving slabs.
Fields of application
  • The main application area of GKE 50-94M is a hydrophobic additive in the production of moisture-resistant gypsum boards, tongue-and-groove gypsum boards and other gypsum products.
  • Silicone emulsion GKE 50-94M – water-repellent additive to concrete.
  • Water-repellent impregnation (hydrophobizator) for concrete bases, brick (masonry), paving slabs, plaster, slate, asbestos cement, ceramic materials, porcelain and glass insulators.
  • It is used as a hydrophobic impregnation for building structures during the repair work of residential, public and industrial buildings and constructions.
  • GKE 50-94M - water-repellent impregnation for the production of moisture-resistant cardboard, paper, fabric, leather, fiberglass.
  • Another area of the emulsion GKE 50-94M application is the renovation and protective treatment of the roof based on unpainted slate.
  • After a few years, it takes on a dark, unsightly appearance, overgrows with moss, lichens, becomes covered with garbage. All this leads to its premature aging and destruction. Slate treatment with the emulsion GKE 50-94M will provide protection from these negative phenomena and significantly extend its life.
Benefits
    • Hydrophobic emulsion GKE 50-94M reduces capillary water absorption of impregnated surfaces.
    • Water repellents are added to the mixing water, which gives water-repellent properties throughout the entire volume throughout the entire service life of the material.
    • The emulsion is more easily distributed in aqueous solutions. This is very important in volumetric hydrophobization of building materials: less water repellent consumption - better hydrophobic effect; the introduction of the emulsion provides an increase in the spread of the molding mass (reducing the density of the molding mass), which is very important for the production technology of gypsum boards, and, as a result, the gas consumption for drying gypsum boards is reduced and at the same time the cost of finished products is reduced.
    • In the production of drywall, the consumption of GKE 50-94M emulsion is significantly lower than when using silicone oil GKZH 136-157M.
    • In the production of tongue-and-groove slabs, the use of an emulsion is especially effective compared to pure silicone oil. In this case, the yield of scrap is significantly reduced and the release of water from the formed products slows down until the product is placed in the drying chamber, because. the released water does not flood the metal structures, the engines of the production line, which otherwise leads to their corrosion. When using the emulsion, the consumption of silicone is reduced (in the production of tongue-and-groove plates about 0.1% to dry gypsum), the water absorption index improves.
    • Hydrophobization of gypsum materials, concrete surfaces, brickwork, facade provides natural air exchange of the structure.
    • Hydrophobic impregnation preserves the appearance of the material.
    • Hydrophobic substances penetrate deeply into the pores without clogging them, while maintaining the vapor permeability of the processed material.
    • The hydrophobic coating prevents contamination of the textured layer.
    • Hydrophobic impregnation of building materials and structures allows to increase their service life.
    • The water-repellent composition prevents the decrease in the thermal insulation properties of the material.
    • Hydrophobization of a surface provides resistance to influence of ultra-violet and infrared beams.
    • Organosilicon hydrophobic compounds, introduced into the concrete solution or applied on the surface to walls, facades, roofing materials, actively protect against weather influences (freezing and thawing, moistening and drying).
    • Silicone-based hydrophobic materials protect against the damaging effects of mosses and lichens.
    • Silicone emulsion GKE 50-94M is non-toxic. Due to the absence of solvents, the emulsion does not emit harmful fumes and does not have a harmful effect on the environment, and is also fireproof.

    Hydrophobic liquid (emulsion) GKE 50-94M as an additive in cement mortars improves the characteristics of concrete:

    • The addition of GKE 50-94M emulsion to concrete in the amount of 0.05% increases the frost resistance class of concrete by at least 1 step; increases frost resistance by 3-5 times; keeps stable frost resistance at 1000 and more cycles of defrosting and thawing.
    • The introduction of an additive into concrete GKE 50-94M increases the water resistance grade of concrete (colmatizing additive) by at least 2 steps.
    • Reduces cement consumption.
    • Increases the overhaul period of buildings, structures, structures by 2-3 times.
    • Reduces the drying time of the cement mortar by 20-50%.
    • Well compatible with various concrete admixtures, incl. with plasticizers (lingosulfates).
    • The combination with superplasticizer C-3 as a complex additive significantly increases hydrophobicity, frost resistance, water resistance, and resistance to aggressive environments.
Application

Hydrophobization can be carried out in two ways:
1. During volumetric hydrophobization
, the silicone emulsion GKE 50-94М is added to the gypsum or cement mixing water. To achieve the water absorption reducing effect, about 0.2-0.8% of the emulsion from the amount of dry gypsum or 0.1-0.2% from the amount of cement is sufficient. This reduces their water absorption and water permeability, increases the plasticity of mortars, the strength of plaster and screed, increases the frost resistance of concrete of normal hardening, regardless of their composition and type of binder.

The emulsion should be introduced together with mixing water, or after - into the finished composition, provided that the mixer kneads for at least 20 minutes.

The effectiveness of the silicone emulsion GKE 50-94M depends on the quantitative and qualitative composition of the mixture, therefore, exact dosage recommendations cannot be provided. It is always necessary to conduct preliminary tests to identify the optimal amount of emulsion GKE 50-94M.

Various gypsum materials production plants use both the pure product GKZH 136-157M and its water emulsion GKE 50-94M. The addition of water repellent in terms of pure silicone is 0.15-0.2% of the gypsum binder.

According to the standards requirements, the gypsum plasterboard water absorption should be no more than 10% (ordinary plates up to 40%), tongue-and-groove plates less than 5%.

Hydrophobic emulsion GKE 50-94M addition to concrete:

As a result of the studies, it was found that the optimal concentration of GKE 50-94M in concrete / cement solutions is 0.1-0.4% by weight of cement. This amount of emulsion allows to achieve a minimal water absorption and permeability of concrete structures.

The tests on the concrete F 200-300 W 6 В - 15 with water-repellent emulsion GKE 50-94М proved that it is required to use 1 kg of emulsion GKE 50-94М for 1 m3 volume sample production.

Recommended amount of silicone additives, depending on the type of cement used as part of complex additives, in % of dry cement:

Cement used Emulsion GKE 50-94М addition, %
Portland cement, quick setting Portland cement 0,1-0,2
Sulfate-resistant Portland cement 0,1-0,2
Plasticized Portland Cement 0,1-0,16
Hydrophobic Portland Cement 0,1-2
Slag Portland Cement 0,08-0,12
  1. Surface treatment- as a coating for protection of masonry, wallboard, cement and concrete ties, limestone, porous rock, slate, tile, plaster products.

The most effective way to solve the problem of the water negative effects and other atmospheric factors is the facade surfaces treatment with 5-10% water emulsion GKE 50-94M. As a result, the water absorption of materials is reduced tenfold and their service life is significantly extended.

For surfaces hydrophobization, emulsion GKE 50-94M is used after dilution with water.
Dilution rate: for 1 liter of emulsion GKE 50-94M - 9-10 liters of water. Diluted solutions can be applied by dipping, spraying or brushing. Apply the working composition to a dry, cleaned surface until it stops absorbing, avoiding drips and leaving drops. The second coat is applied wet on wet until the first coat dries.

The consumption of the working solution depends on the porosity of the processed material and averages 350 ml per 1 m2. Always test the selected fluid concentration on a small sample of material to determine its suitability.

During surface hydrophobization, the surface should be protected from mechanical damage. During hydrophobic treatment by the bulk method, the emulsion GKE 50-94M is distributed over the entire thickness of the building material, as a result of which mechanical damage to the upper layers does not affect the hydrophobic properties of the lower layers.

Storage

Store in original container at temperature from 0°C to +30°C. Store in a cool, dry, well-ventilated place. Protect from direct sunlight and freezing.

Store away from oxidizers, strong acids, alkalis and other chemicals having alkaline reaction for example, ammonia, amines).

The guaranteed shelf life in original container is 12 months.

Storage over the date specified on the label does not necessarily mean the product is unusable. In case if store more please check the properties of product before use.

Packaging

Special polymer containers up to 1 m3, equipped with a safety valve.

Safety information

Emulsion GKE 50-94M is nontoxic, explosion-proof, noncorrosive, evolves no harmful vapor nor gas, produces no irritating action to skin and conjunctiva. Detailed instructions are given in the relevant product safety data sheet. It can be provided upon request.

Parameter name and measure unit Standard
Appearance
Emulsion of white to light gray
Odor Slight odor of acetic acid
Water repelling ability, h, min
3
Watering ability
stands the test method,
set out in the specifications
Density at (+25±0,5)°C, g/cm3
0,980 – 1,020
Volume solids, min,%
50,0
Reaction of the medium рН 3,0 – 5,0
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