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The present study evaluated the technological properties of structural particle panels produced with Pinus taeda L. wood with different treatments preservative to the attack of dry wood termite Cryptotermes brevis. The treatments were produced: without preservative; Cyfluthrin and Preservative Distilled Tall Oil (DTO), using phenol formaldehyde adhesive and also paraffin emulsion, in the proportions of 12% and 1,5%, respectively. For each treatment 5 homogeneous panels with a density of 0.75 g/cm3 were made. For wood, the basic density and the chemical composition were determined. The panels were submitted to physical, mechanical and resistance tests for dry wood termite attack. The statistical analysis was performed by the Bartlett test for homogeneity of variances, Shapiro-Wilk for normality of the data, test of variance and after test of Scott-Knott averages at the 95% probability level. The results showed that: (i) the basic density of Pinus taeda L. was 0.356 g/cm3 and the chemical composition was 2.41% of extractives, 31.79% of lignin and 0.20% of ash content; (ii) the dimensional stability of the panels in 2 hours was obtained in the DTO treatment and after 24 hours in the treatment Cyfluthrin; (iii) for the mechanical properties, the DTO treatment presented better results, being similar to the treatment without preservative only in the static bending test (MOE); (iv) for wet strength the treatment without preservative and DTO treatment presented better results, both in the cyclic test and in the boiling water test; (v) for the resistance to the attack of dry wood termite, the treatment Cyfluthrin and the treatment DTO obtained the less wear in normal face. In the bevel face,

Propriedades tecnológicas de painéis estruturais waferboard com tratamento distilled tall oil