Polyurethane resin
Polyurethanes are polymers that have a urethane bond. This bond is formed by incremental adsorption between an isocyanate group and an active hydrogen compound. Isocyanate groups are highly reactive and therefore do not require an increase in temperature to advance their reaction. Polyurethane resistance to abrasion, impact and cracking is very good and hardens at ambient temperature and its resistance to sunlight is much higher than the epoxy group.
Related products
The middle layer of epoxy flooring
It is one of the products of Farapooyesh, which is produced on the basis of epoxy bisphenol A and hardener polyamine resin. Used. Proper viscosity Excellent adhesion to the floor and reasonable price is the most important feature of this product
Epoxy floor thinner
Active or reactive epoxy thinners
These diluents participate in the reaction and form part of the non-volatile binder. These diluents are non-volatile and do not evaporate. These low-viscosity liquids, when mixed with the original resin, reduce the final viscosity. In addition, the diluents improve the resin flexibility and the air bubbles formed leave the reaction faster.
Inactive epoxy thinners
These diluents do not react and are volatile and usually have high evaporation. These solvents reduce viscosity and cause problems such as reduced final strength after drying, risk of fire, evaporation and risk of poisoning by it.
Silica powder
Silica is an abundant mineral in the Earth's crust that has been widely used in many industries, including electronics and computers, construction, health, paint and many other industries, and its use is expanding every day.
In the paint industry, silica powder is used as a filler in various meshes and increases the wear resistance of the floor.
Epoxy resin
Resins used in the flooring industry are mainly divided into the following two main groups
Resins used in floor primers that are used with polyamide hardeners
Resins used in veneers and floor coverings, which are mainly used with polyamine hardeners, and the most popular is 828 resin.
Hexion Company, which is very famous due to its low viscosity and excellent adhesion, and chemical resistance.
It is very good and in dry weather it has little sensitivity to temperature changes and its mechanical properties do not change over time.
Resins that can be provided in translucent floors with 828 resin or its quality equivalent.
Polyurethane flooring primer
The first step is to clean the polyurethane flooring, which is done in different ways according to its dirty condition, after which the floor should be sanded for more cleanness and creating suitable scratches. After completing these two steps, the primer coating should be applied on the floor. In this step, the diluted polyurethane liquid with high permeability should be poured on the floor. Creating a surface with high adhesion will protect the next layer from the separation of the floor in the future.
Therefore, the life and durability of the flooring directly depends on the quality of the primer, and choosing the right type of primer and the dryness and cleanliness of the surface when doing it is very important. One of the most important issues that should be considered before applying the primer is the complete dryness of the surface and not paying attention to it will cause a lot of damage.
