Flame Security International


Product Name: FSI-Varnish

This product is a unique, clear, water-based internal varnish that enhances the natural texture and colour of timber. It prevents fire propagation and is applied in the same manner as non fire retardant varnish.  A coloured version of this product is also available that has an even stronger resistance to fire which uses a non toxic timber by-product to achieve this additional protection.  This product is also being modified for external use as well and should be available later this year in 2021.

Clean up is with water
3 coats
Applied in the same manner as any other varnish
Designed by the University of NSW and manufactured in Australia and Europe

Fire Certifications

The following certifications are in progress:

  • EN 13501 1 & 2
  • EN 13823 (SBI)
  • EN ISO 11925-2
  • EN 14135:2004
  • BS EN 927 6 Accelerated Weathering Test (NT053 & NT054)
  • BS476 Class 0 & 1 Part 6 & 7
  • BS EN 16755:2017



Fire Testing: Lab Demonstration
Vertical burn test on untreated and FSI-Varnish treated timber.