CASTING FOIL POLYURETHANE PRODUCTS FOR CREATING HOME BUSINESS
The business idea of manufacturing products from polyurethane foam by casting requires minimal costs and brings the maximum result. Technologically casting polyurethane foam (PUF), for the manufacture of complex products – not at all difficult. It is necessary to mix the components (without air access) and with the help of the filling head to jet the mold. Thus, it turns out a monolithic jet of liquid polyurethane. Upon contact with air, the mixture creates a reaction and in 25 seconds the composition increases in volume, filling the smallest details of the relief and the entire space of the form. The mold gives the polyurethane foam the appearance of the finished product. Naturally, in order to easily get the finished product, the mold should be pretreated with a lubricant neutral to polyurethane. With this technology, with the casting of polyurethane foam, many useful and beautiful products are created:
Insulation shells for pipes.
Elements for interior design:
Details for facades:
console arches for balconies;
Elements of ventilation.
Brushes for finishing work.
Details for furniture decoration.
After stripping the finished product, it can be painted in any color and, if necessary, varnished or even flocked. This not only gives products a marketable appearance, but is also a mandatory requirement to protect foamed polyurethane from the sun’s rays. Painted polyurethane will last no shorter than plastic. Equipment that will be required to implement this business idea:
Vacuum mixer components.
For fine work with products may need grinding equipment. This entire set of equipment available at a price is available to create a home business (from $ 550). Next, consider the technology in detail.
TECHNOLOGY OF PRODUCTION OF ABSORBED POLYURETHANE
Molding of polyurethane foam in the form. The production of polyurethane foam is nothing more than the mixing of liquid isocyanate and polyol. At the same time it is necessary to observe the proportion. The result of mixing is a frothy, airy mixture, which when cured forms polyurethane foam. For production of products from PPU are necessary:
In the production of polyurethane foam, it is necessary to remember that compliance with all technological standards gives a quality product, and their violation leads to marriage. The technological standards include:
The air temperature in the room.
Raw material temperature
Compliance with the standard ratio of components of raw materials.
High-quality mixing of components between themselves.
In this case, the temperature regime plays one of the key roles, because at low temperatures, the consumption of raw materials and the quality itself in polyurethane foam increase. It can also affect the finished products in different ways. The finished mixture (foam) fill in the form. Fill them with the fill method. Using the method of pouring, you can make heat-insulating plates, shells for pipe insulation. Also, the method of pouring polyurethane foam into molds can produce various decorative elements. Since liquid polyurethane foam is rather “sticky”, for this purpose the form must be lubricated with special oil or silicone lubricants.
TECHNICAL EQUIPMENT FOR PRODUCTION OF PRODUCTS BY METHOD OF CASTING
Spraying and pouring. Polyurethane foam is a versatile material. Work with him can be divided into two types:
With the method of casting, as mentioned above, it is possible to produce block-type products, “housings” for pipes, and even many decorative elements (cornices, baguettes, decorative molding, and much more). Naturally, the equipment for two different types of work need different.
The method of spraying polyurethane foam is used mainly in construction work, namely in the insulation of attics, exterior walls, floors, etc. This is another business idea that can be implemented on this technology for the purpose of outdoor insulation. When spraying eliminates the gap between the insulation and the wall, which eliminates the occurrence of condensation on the wall and in the joints. Sheet insulation of polystyrene has the risk of condensation on the insulated wall due to the temperature difference between the contact surfaces.
TECHNICAL EQUIPMENT FOR PPU DUSTING
Wall insulation with polyurethane. For spraying use equipment that automatically dispenses the two components of the component. At the same time, such equipment is equipped with a mixing chamber, in which the raw materials are intensively mixed. In the equipment for spraying, polyurethane foam in the spray gun is fed under pressure. Also, it is not unimportant that the equipment for spraying PPU was equipped with a speed control function. Thus, you will be able to regulate the intensity of the application of thermal insulation material on the insulated surface. In order for outdoor insulation work to be carried out year-round, the sputtering unit must be equipped with automatic heating tanks for the components.мм