coating surface tension

  • Surface Energy and Tension

    Surface Energy & Surface Tension affect the Adhesion of Aqueous, UV and EB Coatings

    A surface that is easy to wet is necessary when printing and coating in order to achieve good adhesion and appearance results. “Wetting” is the ability of a liquid to spread, contacting a solid surface. All liquids have a surface tension and all solids have a surface energy. Both are measured as a force applied over an area, expressed as a dyne level. 

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