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Selfcleaning

Objective:
Building exterior self cleaning, protection and energy saving
Road self-cleaning, protection and car exhausts purification

 

selfcleaning titaniumdioxide

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selfcleaning  
Solution:
The TitanShield® nano photocatalyst coat is the combination of photocatalyst and nano technology. Just simply coating the nano coat on the building exterior surface will bring diversified excellent features to the building. Also, the product can be sprayed on road and road side to provide the self-cleaning & air purification function to the road. The TitanShield® nano coat can keep the building or road in a very new view and reduce the cleaning & environment protection cost and water consumption.

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Features:
- Super hydrophilicity
- Atmosphere purification
- Anti-bacterial and anti-mold
- Anti-UV protection
- Surface antistatic
- Self-cleaning


 


When water hits most glass it beads up and runs off, and dust particles in rainwater rivulets can leave streaks or spots. The TitanShield attracts the water and makes it run down the glass in a continuous sheet. That pushes off dirt particles and diffuses dust across the window, rather than clumping it together in droplets. Because this part of the self-cleaning technology requires water, homeowners in dry areas will have to occasionally spray their windows with a garden hose to help the glass clean itself. Yet even without water, the glass will in most cases clean itself, . Once the glass is exposed to ultraviolet rays from sunlight for several days the TitanShield Photocatalyst slowly breaking down organic dirt into carbon dioxide and water vapor.
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selfcleaning  
Benefits:
- Keep the building in new and clean view
- Protect the surface from dust, acid rain and air pollutant damage
- Decompose the organic pollutant on the surface (e.g. oil, graffiti)
- Make the surface without water stain after raining
- Reduce the energy consumption for cooling the building in summer
- Restrain mildew or alga growing
- Kill the bacteria and virus on the surface and in the air near the coated building
- Absorb the UV from sun and then protect the surface from UV damage
- Restrain electrostatic adsorption of dust

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Example: Exterior wall self-cleaning
Surface: stone
Product: TitanShield™ TSA50-07 Nano coat
Apply Method: Spray
Period: 3 months


(Photo #1 dated Dec. 14th 2005)

This picture shows a stone wall which is old and dirty after years of weathering. The area divided by yellow adhesive tape is supposed to be coated with TitanShield™ TSA50-07 photocatalyst sol later.
 
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(Photo #2 dated Dec. 14th 2005)

Before photocatalyst is coated on the surface, pre-cleaning work is necessary. Wash the stone wall and clean out the deposit stain and pollutant. If possible, cleaning the surface with suitable chemical solvent is recommended. Then spray TitanShield™ TSA50-07 on the left part of the cleaned area.
 
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(Photo #3 dated Mar. 15th 2006)

After 3 months weathering, the wall coated with TitanShield™ TSA50-07 shows obvious self-cleaning function. The right part without photocatalyst becomes dirty and dark under the poor air condition of the metropolis. It will be close to the no cleaned area again after several months.
 
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Example: Exterior column self-cleaning
Surface: Granolith
Product: TitanShield™ TSA50-03 nano coat
Apply Method: Spray
Period: 102 days


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  (Photo 1 dated Jul. 18th 2005)

Day1:
40 years’ old granolithic column had been cleaned with improper strong acidic cleaning agent. The structure of granolithic covering had been destroyed; air, dust & pollutants had been retained on column base after raining as photo 1 dated 2005-7-18. Lower part of the stained column base would be cleaned & treated with TitanShield™ TSA50-03 Nano Photocatalyst Coat.

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selfcleaning titaniumdioxide
  (Photo 2 dated Jul. 18th 2005)

Day1:
Lower part of column base (below the taped area) had been cleaned with cleansing agent. Dirt & stain had been removed off the stained area. Then TitanShield™ TSA50-03 was applied to the treated area of column base.

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selfcleaning titaniumdioxide
  Photo 3 dated Aug. 25th 2005

Day 36:
The untreated area- upper part of the column base was found dark & dirty while the area treated with TitanShield™ TSA50-03, (lower part of the column) was found white & clean.

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selfcleaning titaniumdioxide
  Photo 4 dated Oct.29th 2005

Day 102:
The untreated area became dark as a result of contamination by air & organic pollutants. Decomposition of pollutants & self-cleaning test on granolithic covering works & succeeds.

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