Technological watch

In this work, a flame-retardant intumescent alkyd enamel is developed, following the circular economy model, where one of the components is a waste from the leather industry, the fur polishing powder, which is pulled into contaminated landfills in the environment. This powder produced in the curtities, which is practically collagen and a renewable resource, potentiates the retarding effect produced by the chemical decomposition of others of the components of the composition described as ammonium polyphosphate, pentaerythritol, melamine and titanium dioxide. This enamel can be applied on metal, plastic, wood, cloth, tarpaulins, concrete, etc. and when exposed to fire produces a thermally insulating carbon layer that prevents more matrix material from following combustion, self-extinguishing. It is recommended to apply two enamel hands for optimal fire protection. According to the UL 94 standard, this coating complies with the V0 specification applied on polymer films, plates and profile, as well as applied on wood, structural steel and concrete profiles.