NSG Purity - Antibacterial and Antiviral Coated Glass 

Coated with a unique sol-gel technology, NSG Purity is antibacterial and antiviral glass. The hard surface of glass as well as high transparency and classy look makes it an ideal option for a wide range of applications

Certified by SIAA for antibacterial and antiviral performance

SIAA certifies and permits the usage of SIAA marks for the products that satisfy its three criteria on: their performance under the ISO 22196 and ISO 21702 conditions; safety; and labeling

NSG Purity can reduce the number of specific viruses on its surface but is not intended to treat or prevent illness

Sol-gel technology: A material synthesis method for producing ceramics and glassy coatings, by densifying a gel synthesized by the chemical reaction of the solution raw material by heat treatment. Capable of forming highly adhesive coatings with the same silica structure as the glass substrate

* Society of International sustaining growth for Antimicrobial Articles (SIAA)
SIAA is an association established in Japan by testing institutions of antimicrobial agents and fungicides and manufacturers and processors of antibacterial, antifungal and antiviral products, with the goal to promote properly tested and safe antibacterial, antifungal and antiviral products widely. SIAA certifies and permits the usage of SIAA mark for the products that are tested under the ISO22196 and ISO21702 conditions and meet the SIAA's guidelines for quality management

For alleviating the concerns for infections in daily life:

For customers

  • Cash registers
  • Restaurant POS
  • ATM
  • Copiers
  • Ticketing machines
  • Fitness clubs
  • Showcases
  • Check-in terminals at airports

For employees

  • Cash registers
  • Restaurant POS
  • Copiers
  • Factory automation
  • Digital blackboards

For healthcare professionals

  • PCs and tablets for professionals and patients
  • Cash registers

For tourists

  • Check-in terminals at airports and hotels
  • Ticketing machines
  • Destination information boards
  • Counters
  • Mirrors

For families

  • Car navigation system
  • Home PCs and tablets
  • Home appliances
  • Mirrors

How NSG Purity Works

Active oxygen generated by the antibacterial and antiviral coating on the glass surface inactivates bacteria and viruses
  1. Copper contained in the coating layer reacts with water, oxygen and other substances in the air to generate active oxygen (H2O2, ・OH, etc.)
  2. Active oxygen in turn inactivates bacteria and viruses by destroying their envelopes and decomposing lipids, protein and gene materials

Both antibacterial and antiviral tests are conducted under the specified evaluation conditions of SIAA, and the performance required for certification acquisition is confirmed

In addition to its antibacterial and antiviral performance, effective both in light and in dark, NSG Purity demonstrates high durability and transparency. These advantages can make NSG Purity a desirable glass option for the places that people touch and need to be hygienic. The potential applications may include not only cover glass for smart phones and tablets but also a wide range of equipment such as touch screens of cash registers, ATMs, medical equipment, elevators and appliances used in the public places and at home.

NSG Purity Optical Property and Ddurability

Item Test Condition Value
Optical Properties Total light transmittance (%) JIS K 7361 92.70%
Haze (%) JIS K 7136 0.10%
Visible light transmittance 380‐780nm (1.1mmt) 91.50%
Durability Pencil hardness JIS K 5600、750g 9H
Abrasion resistance Steel wool (#0000)
200gf 750 cycles
No change
Moisture 40℃‐95%RH、8hours No change
Alkali resistance 2.5%KOH‐50℃、5minutes No change
Heat resistance 160℃-30minutes No change

※Based on in-house results


  • This product is not intended to treat or prevent illness. Further, it is not intended for medical treatment such as medical products and medical equipment
  • The antiviral performance is based on laboratory test results and may vary depending on actual usage conditions
  • This product does not completely prevent infection by viruses and bacteria. The antiviral and antibacterial effects are expressed against viruses on the surface of the coating and do not guarantee infection prevention

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