For predicting the behavior of wood products with a final finish by applying polyurethane coatings (mainly solvent) under realistic conditions of use is extremely important to monitor all quality characteristics (physical, mechanical, chemical and performance) as well as fire-engineering based on selected characteristics of thermal degradation The paper presents proposals evaluation criteria (total weight loss, maximum rate of burning, time to reach maximum speed of burning, ignition time) for test radiant heat source for wood surface finishing materials by polyurethane coatings for a comprehensive assessment of fire-technical and environmental safety materials for predicting the behavior of these materials in response to fire.

The paper deals with the protection of the wood and its evaluation in terms of fire. It aims in comparison of ignitability of the unprotected and retardant protected samples of spruce wood, using the testing method defined in the STN EN 11925-2: 2011 (test with single-flame source), where the main evaluation criterion is the ignition and flame spread over the surface of the test samples.

The paper deals with the preparation of new type of progressive polymer blends created from bicomponent synthetic fibres (PP/PA6) with addition of interfacial agent maleine-anhydrid (MAH) and polymeric mixtures with varying content of the polyamide component for the purpose of subsequent production of a highly efficient filters for collection of hazardous chemical (VOC) in processes surface finishing and treatment of wood products. Morphological parameters were studied in relation to the supramolecular structure of the mechanical properties and the specific rheological characteristics in terms of their experimental process of spinning of bicomponent fibres.

The paper deals with the protection of wood in wooden building constructions, in accordance to the current trends in the use of organic materials in the construction sector and also in the woodworking industry. The attention is paid to the assessment of the effectiveness of selected retardant protective substances applied to spruce wood that was thermally loaded for prediction of flammability properties and assessing the suitability of their application. In the experiment, there was used the modified testing method with evaluation of the characteristics of thermal degradation. At the same time, there were evaluated selected material characteristics, in relation to the adhesion of retarding coatings applied.

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