Polyurethane coating: types, characteristics, application

The polyurethane coating is used today quite widely both for private dwellings and for public areas. It is good because it is resistant to high humidity, is not afraid of microbes and can serve for years. Pour polyurethane floors can easily be laid with their own hands.

Advantages of coatings

Long-term observations have shown that the polyurethane filling is optimal for installation in industrial premises and not only. They are comfortable and reliable. These floors are a seamless construction with a polyurethane layer, through which the concrete part of the coating is closed.

They have a high resistance to mechanical and chemical effects, are flexible, able to withstand temperature fluctuations.

Key characteristics of polyurethane coating:

• Impurity;
• Sustainability;
• Simplicity of installation;
• Wide range of invoices;
• Practicality of application;
• Service life up to 20 years;
• Ecological compatibility;
• Ease in terms of care.

Spheres of use

This polyurethane coating is recommended to be laid in rooms where there is frequent vibration and mobility of the floor, as well as where there are severe abrasive loads.

They are often used on such objects as:

• Storage facilities for different purposes;
• Freezers and industrial refrigerators ;
• Food production;
• office rooms;
• Exhibition centers and terminals;
• Warehouses and hangars;
• Shop for the production of non-food products;
• Agricultural objects.

Technical features

Polyurethane flooring is one of the varieties of polymer compositions. At the same time, against the background of all the others, it is the most elastic and has the minimum sensitivity in the cracking of concrete, which is a layer below it: cracks up to a millimeter overlap. Also due to its characteristics it has high impact resistance in comparison with other bulk coatings. For example, the polyurethane floor is able to withstand even a drop in weight from a meter height of up to 5 kg. And frost-resistant characteristics allow it to be installed in industrial cold rooms.

In addition, it is excellent for open areas and spaces where there is no heating. For example, a coating for sports grounds can also be made on the basis of polyurethane.

Classification of structures

Floors of this type are of such types:

• Thin-layered;
• Universal;
• Decorative;
• Anti-slip;
• Antistatic.

Below, we consider how each polyurethane coating listed differs from the other.

Thin-layer and universal floors

Such types of coatings are a composition of resins based on polyurethane and are used for closed objects where there will be no mechanical loads or strong friction. They differ in attractive appearance, ease of care, resistance to dirt and strong base. You can update this polyurethane coating simply by repainting it.

Install it on a concrete base, which carries the main load. And the coating itself has a thickness of up to 0.5 mm. It is made by grinding and filling the base, then apply up to 2 coats of primer and varnish.

But universal coatings are used for multilayer floors without joints. They are used in closed premises, such as workshops, shops, warehouses, manufacturing, hospitals, shops and much more.

They are high-strength, abrasion-resistant and well tolerate dynamic loads, slip-free, easy to care, and they also tolerate chemicals for cleaning.

The thickness of this coating depends on its functions and the base and is from 1.5 to 2.5 mm. It can be much larger if the base is uneven and needs to be leveled.

Floors of decorative and other type

The price of polyurethane coating depends on the manufacturer and its characteristics. Decorative floors can cost differently depending on the thickness, color scale and other features. They consist of the main material, decorative PVC-parts and varnish.

A non-skid coatings are used for making multilayer bulk structures. They are relevant for closed premises of industrial and production type. There are polyurethane coatings with an anti-slip effect of the polymer mass, which includes a quartz filler.

Antistatic products are designed for industrial premises of closed type, where it is extremely undesirable to accumulate static charges. This includes rooms with a large number of computers and other equipment, as well as those containing explosive substances. They are capable of discharging static charges, have an attractive appearance, dust does not accumulate on them.

Coatings for sports grounds

Some types of floors can be used in fitness centers, training bases for football players and other objects of this type. This coating for sports grounds is not only attractive, but also characterized by traumatic safety and high quality.

Depending on the requirements, it can have a different structure: porous, rough or monolithic. The coating for sports grounds is poured onto the base of concrete or with the addition of asphalt or the old one, which was used on the site before the repair.

The main advantage of this type of floor is not only an affordable price. Thanks to their installation, a sports ground, a fitness center or a production hall will be safer. After all, they are united primarily by the fact that visitors of such objects can get certain traumas due to work or work, but the main thing is to prevent this.

Installation work

Filling is carried out with a squeegee, roller and drill with a nozzle in the form of a mixer. Also do not forget about the primer to prepare the base for the coating. Some formulations are absorbed too quickly, so in some cases the procedure is performed twice in a row.

Pouring work should be done when the temperature in the room is 10-25 degrees at a humidity of 75 percent. Before full hardening, eliminate the possibility of drafts and temperature changes.

Mix the contents of the bucket so that there are no seals or lumps. Let him brew for 15 minutes and repeat the action. Do not mix too much mixture at once, as it freezes for an hour.

The priming starts 12 hours after the primer. Begin from the far corners and then move to the exits. The floor will harden approximately on the second day, before that you can not walk on it.

As for the cost of polyurethane coatings, it varies between 300 rubles per kilogram. Self-leveling floors are sold most often in buckets weighing about 20-25 kilograms. The square meter coverage will cost in the amount of 157 to 900 rubles per square meter. Before you buy this or that composition, decide on where exactly this coverage is planned to be laid. After all, in terms of composition, they can differ substantially from each other, and what is suitable for one object will be categorically unacceptable in the conditions of the other.