In many industries, UV leak
detection, which uses
fluorescent additives and a
blue (450nm) UV light, is well
established as a reliable way to
pinpoint escaping fluids.

However, many substances
used in hydraulic and
automotive systems naturally
fluoresce yellow under UV light, the
colour of some leak detection dyes.
A fluorescent red dye from
Spectroline is said to solve the
problem of ‘false positives’ from oil,
grease and hydraulic fluid,
due to its colour. Available
through Advanced
Engineering, the range of
dye formulations and
colours offered enables
bespoke combinations and
fault-finding regimes for a
range of applications.