Post on 25-Jan-2021
Self-Cleaning Antibacterial Vitreous Enamel Panel (VEP)
Dr. Garrison Chau, Technical Manager Dr. Ivan SHAM, R&D Director
Construction & Building Materials
Feb. 2020
Vitreous Enamel Panel (VEP)
• A thin inorganic glassy coating fused under high temperature over decarbonized steel
• With outstanding durability, aesthetics, as well as convenience, VEP is widely utilized
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Tai Wai Tunnel MTR Station
The-State-of-the-Art
• Self-cleaning & anti-bacterial VEP is the state-of-the-art product w/ nano-modification
Low maintenance rate
Highly durable
Color diversity
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Wide Range of Applications
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Specifications
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Antibacterial efficiency for E. Coli (JIS Z 2801) > 99.9%
Antibacterial efficiency for S. Aureus (JIS Z 2801) > 99.9%
Surface water contact angle (ASTM D7334) < 20°
Surface gloss level variation (ISO 2813) < 10GU
Functional top coat thickness 150~250 mm
Colour consistency, DE (ISO 7724) < 1.0
Acid resistant (BS EN 14483-1) Class A+
Alkali resistant (BS EN 14483-4) Loss in mass 20g/m2
Thermal shock (BS 1344-1) No visual damage
Award Winning Technology
• Patented & award winning technology from HK US Provisional Patent 62/870,073 in July 2019
Gold Medal & Outstanding Building Material Award in the Asia International Innovative Invention Award 2019
Gold Medal in the Inventions HK 2019
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• By implanting nano-particles of heavy metal compound such as silver, zinc, copper, etc.
• Dramatically enhanced level of resistance to microbes, mold, bacteria, & fungus
• All-in-one enamel top coat fired under ~850°C
NAMI’s Nano-Modification
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Excellent Antibacterial Efficacy
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Normal VEP Nano-modified scaVEP
Antibacterial Efficacy of scaVEP
E. Coli S. Aureus
> 99% > 99%
Performance in Self-Cleaning
• The measured water contact angle
Untreated normal VEP > 37°
NAMI’s nano-modified scaVEP < 15°
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Normal VEP Nano-modified scaVEP
Production Trial
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