Polyurethane coating: types, characteristics, application
Polyurethane coatings today are widely used both in private homes and in public places. They are excellent because they are resistant to high humidity, are germ-free and can be used for many years. Self-leveling polyurethane floors can be easily laid yourself.
Contents of the article:
Advantages of coatings
Long-term observations have proven that self-leveling polyurethane floor covering ideal for installation in industrial premises and beyond. They are comfortable and reliable. These floors are seamless structures with a polyurethane layer with a closed concrete part of the covering.
They are highly resistant to mechanical and chemical influences, elasticity and can withstand extreme temperatures.
Main characteristics of polyurethane coatings:
- No dust;
- Stability;
- Easy to install;
- Wide range of requirements;
- Practicality of application;
- Service life up to 20 years;
- Environmental friendliness;
- Easy to maintain.
Areas of use
These polyurethane coatings are recommended for installation in rooms with frequent vibration and floor movement, as well as in rooms with high abrasive loads.
They are often used in objects such as:
- Warehouses for various purposes;
- Industrial freezers and refrigerators;
- Food production;
- Office premises;
- Exhibition centers and terminals;
- Warehouses and hangars;
- Workshops for the production of non-food products;
- Agricultural objects.
Technical features
Polyurethane flooring is one of various polymer compounds. At the same time, compared to all the others, it is the most durable and has minimal sensitivity to cracking of concrete in the layer underneath it. Cracks can overlap up to 1 millimeter. Due to its properties, it is also more impact resistant than other self-leveling coatings. For example, polyurethane floors can withstand up to 5 kg of weight falling from a height of 1 meter. Their frost-resistant properties also allow them to be installed in industrial refrigerators.
They are also ideal for outdoor areas and unheated spaces. For example, sports field surfaces can also be made from polyurethane.
Classification of structures
This type of flooring comes in the following varieties:
- Thin Layer;
- Universal;
- Decorative;
- Anti-Slip;
- Anti-Static.
Below, we’ll discuss the differences between each of these polyurethane coatings.
Thin-layer and universal floors
These types of coatings are polyurethane-based resin composites and are used in indoor spaces not subject to mechanical stress or high abrasion. They are distinguished by their attractive appearance, ease of maintenance, stain resistance, and durable base. These polyurethane coatings can be updated with a simple repaint.
They are installed on a concrete base, which bears the main load. The coating itself can be up to 0. 5 mm thick. It is produced by sanding and laying the base and applying up to two coats of primer and varnish.
However, universal coatings are used for multi-layer, seamless floors. They are used in indoor spaces such as workshops, production facilities, warehouses, manufacturing facilities, hospitals, and retail spaces. They are highly wearable, abrasion-resistant, and withstand dynamic loads well. They are non-slip. They are easy to maintain and can withstand the effects of cleaning agents.
The thickness of such coatings depends on their purpose and substrate and ranges from 1. 5 to 2. 5 mm. If the substrate is uneven and requires leveling, it can be much thicker.
Decorative and Other Flooring
Decorative and other types of floors
Anti-slip coatings are used in the manufacture of multilayer, three-dimensional structures. They are suitable for enclosed industrial and manufacturing facilities. Polyurethane coatings with an anti-slip effect are made of a polymer mass with a quartz filler.
Anti-static products are designed for enclosed industrial facilities where the accumulation of static charges is highly undesirable. These include rooms with numerous computers and other equipment, as well as rooms containing explosives. They are static-resistant, have an attractive appearance, and do not accumulate dust.
Sports court surfaces
Coverings for sports fields
Depending on the requirements, they can have a different structure – porous, coarse-grained or monolithic. Coverings for sports fields are poured onto concrete bases, or asphalt surfaces, or onto old ones that were used at the facility before renovation.
The main advantage of this type of sex is not only accessibility. Styling, sports fields, fitness centers or production workshops make them safer. After all, they are mainly held together by the fact that visitors to such facilities for classes or work may receive certain injuries, the main thing is to prevent this.
Installation work
Installation work
Bucid should be started when the room temperature is between 10 and 25°C and the humidity is 75%. Eliminate the possibility of drafts and temperature differences until complete hardening.
Stir the contents of the bucket to ensure there are no compactions or lumps. Let it brew for 15 minutes and repeat the steps; Do not knead the mixture one at a time as it will harden within 1 hour.
Filling begins 12 hours after priming. Start in the far corner and move towards the exit. The floor will harden for about two days, after which it will no longer be possible to maintain it.
As for the cost of polyurethane coating, it fluctuates around 300 rubles per kilogram. Burning floors are mainly sold in buckets of approximately 20-25 kilograms; covering one square meter can cost from 157 to 900 rubles per square meter. Before purchasing a specific composition, determine the exact location where this coating will be installed. After all, in composition they can differ greatly from each other, and what is suitable for one object is categorically unacceptable in the conditions of another.
Polyurethane coating: types, characteristics, application
