One of the sealing and insulating coatings is the use of a wide range of polymer coating. Polymers with their sealing and hydrophobic properties can be a reliable coating for a variety of materials that are exposed to moisture. Polymer coatings are classified for different types of consumables. In general, the polymer coating is a type of paint coating that is composed of a polymer that has high cohesion and resistance to corrosion and damage.
Coating materials in this standard are compounds that harden without the need for heat. This group of materials is applied in various ways, including the use of brushes, rollers, sprays, trowels and combs on concrete surfaces in one or more layers. Those materials can be applied without solvent or with solvent.
A coating system consists of one or more coatings or layers. A list of types of polymer coating systems is given in the table. To achieve the required chemical, mechanical and thermal resistance, a combination of the systems mentioned in the table can be used.
Waterproofing materials are often based on low viscosity epoxy resins. These materials easily penetrate into concrete surfaces or in other words are easily absorbed by concrete and cement surfaces. They are used to create hard concrete floor surfaces in industrial flooring, increase the wear resistance of concrete and also dustproof concrete surfaces.
Primers are used to seal the porosity of concrete surfaces. Primers are the mainstay of coatings that will be applied later. Primers are made of low-viscosity resin materials that often contain solvents or reactive diluents. They can be selected as needed based on resins other than resins that are later applied as intermediate and final layers. As needed, primers can be applied in one or more layers. It is recommended to apply silica powder on the newly applied primer and it has not hardened yet to create a mechanical bonding between the concrete primer and the subsequent layers. If using an asphalt trowel system, the need for bitumen primer or resin with high thermal resistance is recommended.
The middle layer is used to level the concrete surfaces and also to fill the pores in the concrete. At the same time, the middle layers are used as a layer that prevents the subsequent layers of the coating system from reacting with the substrate, for example, if the subsequent layers of the coating system are based on eruption resins or phenol-formaldehyde. The presence of acid catalysts to harden the above resins causes corrosion of the concrete surface under the work, so it is necessary to apply an intermediate layer as an intermediate layer. Intermediate layers, like primers, can be selected from resins other than those used in the next layer.
Trowel coatings can be applied in one or more layers depending on the type of resin used in them. These types of coatings can be hard and brittle or soft.
This group of coatings can be applied in one or more layers. Self-levelling coatings are created by pouring material on surfaces that spread and level themselves. The above coatings can also be hard or soft depending on the resin used in them.
Reinforced coatings consist of one or more layers of fibres impregnated with resins listed in the table. The thickness of each layer depends on the type of reinforcing material and its weight and the total thickness of the coating depends on the number of reinforcing layers used. It is recommended that the resin used to saturate all reinforcing layers be the same.
The final coatings in one or more layers of the same resin base used in the reinforced layer or a more durable resin base are applied on the fibre-reinforced layer. Undiscovered roving fibres can also be used in the final coating applied to the reinforced layer. These fibres are pressed on the last layer of the reinforced coating by a roller and then impregnated with the final coating resin. If the final coatings are applied directly to the primer, they will also be responsible for the sealing layer.
Asphalt-based piles are made impermeable by a sealing layer. These layers are made of bituminous sheets with metal or polymer backing, composed
The ingot layer is a fully compacted layer that is applied on concrete surfaces in order to achieve high chemical and mechanical resistance, which are divided into two categories: resin and asphalt. In resin ingots, a resin bonding agent is used along with various granulations of silica powder.
Sealing coatings, which are also the final coatings, are used to meet needs such as colour, smoothness, sealing and electrical conductivity. The resin base used in the sealing layer is usually the same resin that has been used in previous layers.