INTRODUCTION
Saturation of wood with polymer’s solutions by brushing and submerging is
commonly used procedure in wood (Wieczorek 2006).
Substantial parameter of saturation is wettability of protected surface by solution being
spread. Wettability depends on wood species and its anatomical structure (Collmann 1968), as
well as section of wood being exposed to saturation. Properties of polymer applied, solvent
used, solution viscosity and its temperature influence polymer retention and penetration
depth. (Unger 2001). Viscosity of polymers’ solutions depends on their strength (Ciabach
1998). Thinner solutions show better penetration (Paciorek 1993)
Wetting angle is a measure of interaction between wetting solution and the base.
Lower value of this parameter show better base wettability. Other than wetting angle itself, it
is important to analyze its change characteristics in assumed time. Lower wettability informs
about possible problems with treatment, gluing or surface finishing