Science > Smart Materials

UV Fluid

This liquid is non-toxic liquid paraffin containing a UV sensitive photochromic dye. Indoors it appears as a clear liquid but when exposed to natural light it immediately becomes coloured. This colour increases in intensity when exposed to direct sunlight. The colour change is reversible (takes approx. 60 seconds). 50ml pot.
  • £4.65
    NS4314
    Red
  • £4.65
    NS4315
    Blue
  • £4.65
    NS4316
    Green