Information is provided on the properties of lime coatings with polysaccharide additives. It has been shown that lime coatings based on compositions with polysaccharide additives are characterized by the formation of a composite structure with inter- and intracrystalline organic substances due to the adsorption of polysaccharides on lime particles. It has been established that the coatings are characterized by frost resistance grade F35. A higher value of surface free energy (SFE) of the coating was revealed compared to control samples (without polysaccharide additives). Coatings whose formulation contains a polysaccharide additive are characterized by a higher value of the critical surface tension of the coating surface and the Hamaker constant. The free energy value of the surface of the coating based on the composition with the addition of polysaccharide is higher compared to the value of the SFE of the coating based on the control composition and amounts to 24.81 mN/m. The increase occurs due to an increase in the dispersion component. The polar component of the SFE is almost the same and amounts to 4.929–4?99 mN/m.