Hryhor, OlehMaladyka, IhorNesen, IvanRotte, Serhii2025-12-1820251336-00192730-0544https://drepo.uniza.sk/handle/hdluniza/1381The article presents the results of scientific research aimed at determining and improving the fire-protective properties of powdered substances and their impregnating solutions for the fire protection of wooden products, building materials and structures. A research methodology is proposed for the development of effective fire-extinguishing and fire-retardant agents for wood, based on three-component mixtures in which one of the components is a nitrogen-containing compound. Experimental findings show that a three-component mixture consisting of monoammonium phosphate, ammonium sulphate and carbamide, in appropriate proportions, provides highly effective fire protection for wood. In addition, a composition in the form of an epoxy polymer was developed, containing a mixture of ammonium phosphate and urea-formaldehyde resin, intended for use as a surface fire-retardant coating for wood.enfirefighting powderfire efficiencygas chromatographyepoxy polymernon-additivity.Articlehttps://doi.org/10.26552/krm.C.2025.2.60-66