Hydrophobic agent GKZH-11K

Application

Materials processing with a hydrophobic composition GKZH-11K. The procedure for the waterproofing works. 

Hydrophobization can be carried out in two ways: surface hydrophobization, bulk (volumetric) hydrophobization.

What does hydrophobization mean?

1. Surface hydrophobizationis the treatment with a water-repellent liquid (impregnation) of porous mineral building materials on their surface using a brush or spraying to impart moisture resistance, protect walls, facades, foundations, roofing and floor surfaces of concrete, brick, ceramics, asbestos cement from destruction, in order to increase the service life of buildings and constructions, as the surface treated with a water-repellent liquid practically does not absorb water and is not polluted by precipitation.

The surface hydrophobization of the coatings with water-repellent impregnation GKZH-11K is effective for 4-5 years.

It is recommended to repeat the treatment with GKZH-11K solutions every 3-5 years.

To be processed: masonry, wall panels, cement and concrete screeds (floors), limestone, porous stone, slate, tiles, plaster coatings, paving slabs.

The use of GKZH-11K protects against the appearance of “salt trace” on the surface.

Surface preparation: Remove flaking particles that are loosely bound with the base, remove dust and other contaminants. It is recommended to clean the surface using high-pressure washers, steam cleaner, water jet or mechanically. After wet cleaning, allow the surface to dry. Application is recommended on a dry, clean, dust-free surface.

Preparation of the working solution:

Water repellent agent GKZH-11K grade B - 1 l of liquid should be diluted with about 20 l of water

Water repellent agent GKZH-11K grade V - 1 l of liquid should be diluted with about 17 l of water

Before using, it is recommended to make trial processing on a small area of ​​the surface or on a single element. In case of stains, dilute the working solution with water in the ratio of 2 parts of solution to 1-2 water. Dilution of the working solution can be made only in the case of treatment of surface with low moisture absorption. The recommended volume of the prepared water repellent agent at one time should be no more than the expense for the one-day working period. If necessary to save the working solutions for a longer time (3-4 days), they should be placed in a well-sealed glass or plastic container.

Application method for surface treatment:

Water repellent agent is applied by using a paint brush, roller or spray. It should be borne in mind that surface treatment using the spray method can lead to an increase in consumption.

Surfaces which are not subject to treatment should be closed in order to protect them from unwanted exposure of the agent.

Hydrophobic impregnation GKZH-11 in the a solution form is applied to a dry cleaned surface until it is absorbed, avoiding smudges, leaving no drops. It is not allowed to carry out works on the hydrophobization of walls during the rain, as well as after the rain, before the textured layer dries. If an uneven coating is a result of treatment with a liquid, or applied on a porous surface, the treatment should be repeated, but only immediately after the application of the first layer, that is, on a still wet surface. In case if that immediately after the completion of the work it rained, the water-repellent treatment of the surface should also be repeated.

After drying, the moisture absorbency of the treated surface is minimized, so, if you continue to apply, can cause stains. Therefore, further processing of the already dried surface should be avoided. In the course of application, in order to prevent the appearance of stains, follow uniform and complete absorption of the liquid. The possible appearance of stains does not mean a decrease in water-repellent effect.

Works should be carried out at a temperature not lower than +5°С.

A contravention of the specified technology (working solution preparation and application), repeated processing on the dried layer, excess of the applied solution, can lead to the appearance of white stains on the treated surface.

Consumption depends on the porosity of the processed material and the method of application, and on average is 0,2-0,4 l/m² of working solution.

From 1 liter of liquid GKZH-11K grade B, 21 l of working solution is prepared, which is sufficient for processing 55-110 m² of surface.

From 1 liter of liquid GKZH-11K grade V, 18l of working solution is prepared, which is enough to treat 45-90 m² of surface.

Water repellent treatment is recommended to carry out at dry weather at the temperature of +5°C to +25°C. A full drying time at the temperature of +20°C is not more than 24 hours, at a lower temperature, drying slows down and may take longer.

2. Volumetric hydrophobizationis the imparting of moisture-proof properties to building materials by initiation a hydrophobic additive directly into the cement paste (in concrete) in the production of building materials, plaster, basement, etc.

Additive GKZH-11K in the solution for the bulk waterproofing is initiated during the preparation of plaster, cement, concrete solutions, in the production of asphalt and bitumen mixtures, and performs a range of other functions:

Hydrophobic additive GKZH-11K in concrete reduces water absorption and water permeability, eliminates capillary leakage.

• GKZH-11K is a water reducing additive in concrete, which reduces water consumption for a solution by 1.5 times.
• GKZH-11K is a clogging additive that increases the grade of concrete by impermeability.
• GKZH-11K is a plasticizer of II, III, IV groups for concrete.
• GKZH-11K is an additive that increases the strength of concrete, plaster and screed.
• GKZH-11K is an additive that increases the frost resistance of concrete of normal hardening and asphalt pavements, regardless of their composition and type of binder (antifreeze additives to concrete).
• GKZH-11 neutralizes acids contained in solutions.

The water-repellent liquid GKZH-11K is initiated into the solution together with the mixing water in an amount of 0.1-0.2% by weight of the binder — cement or lime.

In the production of gypsum-fiber boards it is used in accordance with the technology of the manufacturer of the plates.