SEARCH Articles Figures Tables Just the opposite, the contact angle of the PF adhesive decreased with the severity of the heat treatment of the wood. A statistically significant difference in the initial contact angle was obtained between the C and HT-2.20, HT-4.20, HT-8.66 specimens and also between the HT-0.75 and HT-2.20, HT-4.20, HT-8.66 specimens. Improved wettability of PF adhesive on heat-treated wood was an interesting finding, but it was not within the scope of this research to investigate the phenomena behind it. An on-going study will focus on this aspect. [Publishers Imprint]