In this study, methyltrimethoxysilane (MTMS), a hydrolyzable, multi-functional alkoxysilane polymer and Q9-1315, a MTMS alkoxysilane polymer diluted with methanol, were used in conjunction with acetone dehydration to conserve waterlogged wood. Three groups of wood were used as samples for study. The Group 1 samples, waterlogged tongue depressors, were treated using acetone dehydration followed by immersion in MTMS. After using the acetone/MTMS displacement method, images of the treated wood were obtained using an environmental scanning electron microscopic, and were compared to similar images of non-waterlogged samples of the same wood samples, providing data on the ability of the polymer to preserve the micro-structure of the wood. A waterlogged plank from a submerged 17th –century architectural feature, from Port Royal, Jamaica, was divided into four sections to form the Group 2 samples. Two sections of this plank were treated by using MTMS on one section and Q9-1315 on another. The remaining two sections of wood were used to calculate the water content of the wood. The Group 3 samples consisted of 18 waterlogged treenails extracted from the frames of La Salle’s vessel, La Belle, which sank off the coast of Texas in 1686. Eight of the Group 3 treenails were treated using MTMS immersion after dehydration in acetone. Eight other Group 3 treenails were treated using acetone dehydration followed by immersion in Q9-1315. The remaining two were used as controls for comparison. The nuclear magnetic resonance spectra of the samples from these Groups indicate that when waterlogged timbers are immersed in MTMS, resins are formed through self-condensation. The hypothesis of these experiments is that alkoxysilane polymers are sufficient to preserve the diagnostic attributes of wooden artifacts.