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Hydrophilic Glass self-cleaning ©WTI 2010
The Technology The latest in glass technology isself-cleaning and low- maintenance window glass. This is achieved by coating or fusing the glass with titanium dioxide (TiO 2 ) or silicon dioxide (SiO 2 ). ©WTI 2010
Hydrophilicity The term hydrophilicity describes the property of a surface that will make it have an affinity for water. When water hits hydrophilic glass, it flattens and spreads out to form a thin sheet on the glass surface. This sheeting action not only helps rinse away loosened dirt and other organic material it also minimizes spots and streaks by helping the glass dry more quickly and evenly. ©WTI 2010
Photocatalysis This term describes the property of a surface which allows it to decompose organic material. On a self-cleaning window, the surface of the glass will help break down loose dirt and other organic material. This allows the sheeting action of the water to more easily rinse loosened dirt away. This property also helps the glass maintain its hydrophilicity (ability to sheet water). ©WTI 2010
A glass surface is considered to be hydrophilic if the contact angle of a water bead on its surface is less than 20°. In contrast, a hydrophobic surface (which promotes beading like that of a freshly waxed automobile) has a contact angle of more than 60°. The contact angle on ordinary glass measures 20-40°. ©WTI 2010 Contact
TiO 2 and CVD TiO 2 was chosen for its combined photocatalytic and hydrophilic properties. CVD (Chemical Vapor Deposition) is the process of choice due to the inherent longevity of fusing TiO 2 to the glass. ©WTI 2010
A typical surveillance camera at 2:00am. One of WTI's Surveillance Cameras with Hydrophilic Glass at 2:00am that same morning. How Does It Compare? Phelan Loop Bus Stop in San Francisco (January 2010) - One is WTI's C-MAX Ultra II and the other is a typical CCTV camera. ©WTI 2010
A typical surveillance camera at 8:00am. One of WTI's Surveillance Cameras with Hydrophilic Glass at 8:00am that same morning. How Does It Compare? Phelan Loop Bus Stop in San Francisco (January 2010) - One is WTI's C-MAX Ultra II and the other is a typical CCTV camera. ©WTI 2010
2064 EASTMAN AVENUE, SUITE 113 VENTURA, CA 93003-7787 (805) 339-9696 TEL. (805) 339-0932 FAX. (866) GOTOWTI TOLL FREE. www.gotowti.com Video Surveillance Products Dedicated to the Broadcast, CCTV, Global Security and Transportation Markets! ©WTI 2010
WTI (Wireless Technology, Inc.) ©WTI The Revolutionary Sidewinder Pan / Tilt / Zoom Camera features 360° continuous unlimited pan and tilt camera.
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