Abstract: The equation of the critical surface tension was obtained on the basis of a new equation Young-Verkholomov contact angle. It is established that in the case of wetting of non-polar solids by non-polar liquids (the case of Zisman), the critical surface tension is equal to the corresponding value of the surface energy of the solid.

Abstract: As a result of computational studies, a unique correspondence between the value of θ⁰ and the adhesion force of the solid body σA was established. The transition from the classical Young equation to the equation Young-Verkholomov (from the free surface energy of the solid body σSV to σA) allows us to predict the development of new solid smooth coatings with θ⁰ ≥ 130-135⁰.