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Log4+® is a novel, patented, pure visible light activated (VLA) photocatalytic antimicrobial coating for ceramic that has been designed to be coated during the firing process as a liquid.

Visible light and oxygen in contact with Log4+® triggers a chemical reaction resulting in the decomposition of organic and inorganic substances offering bacteria kill rates up to 99.99% (Log 4). Log4+® is effective in indoor lighting conditions; not requiring UV. As Log4+® is sintered into the ceramic surface at high temperature, it is permanent, long-lasting, scratch resistant and invisible.


Uses Include:


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LOG 4+® Coating

  • Is coated on ceramic during the firing process with no additional production steps required
  • Is effective against gram positive and negative bacteria, fungi and mould creating
    enhanced product benefits for commercial partners
  • Is supplied in a liquid form with no toxic additives, VOC or harmful bi-products
  • Can be tailored for different applications depending on customer requirements
  • Offers unique selling points giving the customer revenue generation potential
  • Treated ceramic tiles will eliminate the risk of contracting athletes foot infection
    in swimming pools
  • Anti-odour and air cleaning properties
  • Will not adversely affect the functionality of the core ceramic product
  • Reduce cleaning requirements in public buildings, swimming pools and airports

How it works:


Technical advantages:

  • Antimicrobial test ISO 27447:2009 (8mm white ceramic floor tile) returned a kill rate under the light of 99.99% and 99% in darkness against Staphylococcus Aureus
  • Scrub-rig testing ISO 11998:1998 indicates excellent durability of coatings, no samples showed scratches after 500 cycles
  • Coating thickness 30 - 40nm
  • The coating cannot be visually detected on the ceramic surface
  • Humidity test ASTM D2247 passed effective
  • Determination of resistance chemicals ISO 10545 -13:1997
  • Determination of resistance to stains ISO 10545 -14:1997
  • Tests for in vitro cytotoxicity showed no relevant cytotoxic effect when tested to standard ISO 10993
 

Click below to download the KASTUS Ceramics Factsheet.

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