The higher the Contact Angle AND the lower the Sliding Angle, the easier a hydrophobic protective coating is to clean!! <br /> <br />Learn more about Diamon-Fusion International (DFI) Hydrophobic Protective Coating at http://www.dfisolutions.com or contact us at info@diamonfusion.com, + 1 888 344 4DFI (Toll-free in USA), or + 1 949 388 8000.