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Research Letters in Materials Science
Volume 2007, Article ID 31956, 4 pages
Research Letter

Fire Resistance of Wood Impregnated with Soluble Alkaline Silicates

1Centro de Investigación y Desarrollo en Tecnología de Pinturas (CIDEPINT), calle 52 e/121 y 122, La Plata 1900, Argentina
2Universidad Tecnológica Nacional (UTN), calle 60 y 124, La Plata 1900, Argentina

Received 23 September 2007; Accepted 7 November 2007

Academic Editor: Luigi Nicolais

Copyright © 2007 Carlos Alberto Giudice and Andrea Marisa Pereyra. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


The aim of this paper is to determine the fire performance of wood panels (Araucaria angustifolia) impregnated with soluble alkaline silicates. Commercial silicates based on sodium and potassium with 2.5/1.0 and 3.0/1.0 silica/alkali molar ratios were selected; solutions and glasses were previously characterized. Experimental panels were tested in a limiting oxygen chamber and in a two-foot tunnel. Results displayed a high fire-retardant efficiency using some soluble silicates.