Polyurethane and epoxy self-leveling floors are monolithic coatings that consist of polymeric materials. They have many advantages. What are good polyurethane bulk floors? Customer reviews indicate that such coatings have a very attractive appearance. The materials are quite practical and durable. In addition, consumers note the ease of installation of structures. During operation, according to the owners of residential premises, the coatings are resistant to chemical and mechanical influences. The bulk polyurethane floor does not collect dust, and its maintenance is quite simple.
Where is it used?
Bulk polyurethane floor can withstand a variety of loads. In addition, it is distinguished by its decent appearance and practicality. Due to these qualities, the following premises are most often the area of its application:
- Telecommunication enterprises.
- Laboratories.
- Freezers
- Offices
- Hotels
- Children and medical facilities.
- Machine shops.
- Car services.
- Parking.
- Food industry buildings (where wet technical processes are noted).
- Industrial premises.
- Cottages, houses and apartments.
- Other rooms where there is a high load on the floor surface.
Classification
A single-layer bulk polyurethane floor has a thickness of up to 0.4 mm. Such coatings are also called thin coat. They can withstand medium to light loads. Active exposure will scratch the polymer coating and rub it.
Such floors can withstand the following:
- Combustive-lubricating materials.
- Aggressive environments.
- Light punches.
Their repair can not be called complicated. A single-layer bulk polyurethane floor can be used in rooms that are characterized by medium abrasive loads, minimal humidity. At the same time, high demands are placed on decorative surface elements.
Two-component polyurethane bulk floor
Such coatings are also called highly filled. Material thickness - up to 2.5 mm. They can withstand heavy and medium loads. Such floors are resistant to the following:
- Combustive-lubricating materials.
- Aggressive environments.
- Temperature and chemical influences.
- Abrasive wear.
- Bump.
This type is easy to repair. Such floors can be used in any premises, which are characterized by high demands on the decorative coating and its stability. The declared service life is about 10 years.
Device features
In the context of the bulk floor, polyurethane (industrial or household) is a three-layer formation.
Impregnat
It is a low-viscosity homogeneous liquid, which serves as an impregnation for wooden, brick and concrete surfaces.
Two-component coating (polyurethane)
This is a reinforcing layer. It is a uniform elastic coating characterized by a high level of adhesion.
Anticorrosion coating
This protective layer is designed to improve resistance to mechanical stress.
Mandatory conditions
Many decide to make a polyurethane bulk floor with their own hands. Work can only be carried out taking into account the following requirements:
- The surface temperature should not differ significantly from that which is currently fixed in the room. The maximum limit is 3 degrees.
- Lack of heaters, forced air movement, drafts and so on.
- Relative humidity - 80%. It should be maintained during the day after pouring, as well as during the work itself.
- Recommended room temperature - up to 25 degrees.
Foundation preparation
Before laying a bulk polyurethane floor, the surface must be sanded, dust-free and absolutely clean. It is necessary to remove all oil stains and loose particles. Due to this, the polymer composition holds together well. The waterproofing layer must be laid on concrete.
Shot blasting
With the help of it, the base becomes rough. This provides better adhesion to the polymer mixture. Also thanks to such processing, fragile pieces are effectively eliminated. In addition, there is a decrease in defects in the surface of concrete.
Grinding
Provides removal of roughnesses of the basis, and even in hard-to-reach areas. However, this process clogs the pores of concrete with dust. Thus, adhesion is significantly impaired. Before applying the polyurethane layer, a check of the base for cracks and seams is required. If they are detected, do the following:
- Remove dirt and dust from the joints (you can use a vacuum cleaner).
- Treat the surface with an impregnate.
- Fill the cracks with a putty mixture (its base should be a polyurethane composition).
Primer Features
It is best to use a roller or spray gun. It is necessary to add quartz sand to the primer. Thanks to him, the surface will become rough. This will provide better adhesion to polymeric materials.
Mixture preparation
Most often, a two-component bulk floor or polyurethane primer is used. All ingredients are mixed according to the manufacturer's instructions. It is recommended to use a mixer with reverse or direct direction. It is also permissible to mix the components manually. The polymer mixture is prepared in two steps. If it is intended to use a filler, then it must be added in the process of re-mixing. The volume of material should be such that you can have time to finish working with it within an hour. After the primer has dried, you can begin applying the main polyurethane layer.
Application technology
To lay a bulk polyurethane floor, you need to start with the underlying layer. Then rolling is carried out using a needle roller. After that, a facial coating is applied.
Important points
Between layers there should be a time interval. It is approximately twenty hours. The temperature in the room should be at least 20 degrees. It is necessary to protect the floor from sunlight and strong humidity. After a day, you can start walking on a fresh surface. It is recommended to start operating and arranging furniture after 5 days. A special varnish is made on the floor, which is made on the basis of polyurethane. This will provide additional protection against mechanical stress.
"Polymerstone-2"
The polyurethane bulk floor of this brand is characterized by high mechanical strength and elasticity. Such a coating is used in rooms that are characterized by increased requirements for abrasive and chemical resistance of the coating. This also applies to wet conditions. It can be used where special hygiene requirements are to be observed.
Such a floor can be laid on:
- Concrete screed.
- Old coatings.
- Rigid metal construction.
It provides impact resistance and wear resistance of the coating, which is resistant to chemical loads. For 1 square. m. it will take about 1.5 kg of material (provided that the thickness is 1 mm).
Safety precautions
Coating should be carried out in a room that is well ventilated. Material may be exposed to exposed skin. If this happens to the eyes, then they should be washed immediately with water and seek medical help. During operation, gloves and safety glasses must be worn .
Necessary tools and fixtures
- Special soles with spikes. They are necessary in order to move on the newly applied coating. Their number should correspond to the workers who use needle rollers.
- Squeegee with adjustable gap. With it, the material is evenly distributed over the surface.
- Solvent for cleaning tools.
- Aeration needle roller. With it, air bubbles are removed.
- Putty knife. It is useful in the distribution of material in hard to reach places.
- Drill with a special mixer. It should make no more than 600 revolutions per minute. The size of the mixer is slightly longer than the depth of the container in which the material will be.