Aditivos para leak detection Spectroline. Spectroline fluorescent additives are manufactured in Brazil by Metal-Chek under license from Spectronics Corporation to the highest quality to meet the standards and requirements of various market segments. Spectroline® offers a wide range of solutions for proper leak detection that can keep your operation safe and production moving forward. The tools will help preserve equipment quality and extend service life. Ideal for use as part of a preventative maintenance and diagnostic programme. The fluorescent additive works effectively in any closed circulatory system where fluids are used for lubrication, hydraulics, refrigeration control or hydrostatic pressure testing. Fluorescent additives can also reveal leaks in static systems that may be pressurised or agitated.