What is polyurea
The material polyurea impresses with its properties of flexibility, wear resistance, water and weather resistance, as well as very good chemical resistance. The two-component polyurea system generally reacts very quickly. Coating with polyurea is always carried out mechanically using 2K mixing systems. The pot life is in the range of seconds.
Use and advantages
Polyurea is used as a weather-resistant protective layer for swimming pools, renovation of large roof surfaces, as wear protection in gravel works and many other areas.
At ACCENTFORM, we utilize the advantages of this material for the efficient coating of large-format figures and objects. We usually mill large-format objects from EPS (STYROPOR). However, these objects would not be weather-resistant, cannot be painted and have poor compressive strength.
Application
A layer of approx. 2-3 mm is usually applied to the objects by coating them with a polyurea hotcoat. This layer thickness is sufficient to give the objects an impact-resistant surface. The two-component polyurea system is heated to 80° in a machine beforehand and applied to the objects at a high discharge rate
Due to its extremely fast reaction time, the material cures in a fraction of a second. Because of this rapid curing, the heated material has hardly any time to spread evenly across the surface of the object, as curing begins immediately. As a result, apolyurea hot-coat coating generally produces a visible sprayed texture. Immediately after applying the polyurea layer, a primer is often applied to the objects to ensure good adhesion for subsequent surface painting. Because a polyurea coating usually provides high wear resistance, it would be very labor-intensive to smooth out the textured surface by sanding. The orange-peel-like spray texture gives natural objects, such as animals and plants, an authentic surface. If a finish with a matte sheen is applied in the end, everything was done correctly.
