Also, the reaction with the surface must be reasonably competitive with the intramolecular silane condensation reaction, or the silane will be consumed in forming the siloxane network without the anchor to the surface.

These organosilane intermediates, in the absence of substrates such as silica or similar minerals, or in the absence of hydroxyl-, amino- or carboxylic acid-containing organic compounds, undergo a complex series of hydrolysis and self condensation reactions leading to dimers, trimers, tetramers and ultimately oligomers and polymers designated as silsesquioxanes, [RSi[O.

Furans--These two-part systems cure by a condensation reaction in which water is produced as a by-product of the reaction.