Avantor provides nontoxic, noncorrosive liquid leak detection systems in kits or convenient spray or squeeze bottles. Viscous leak detectors can be used on vertical surfaces, and fluorescent liquid detection systems make leaks easy to see in dark spaces. Avantor also offers safe-for-oxygen and non-staining formulas of liquid leak detectors. Visible penetrant kits locate surface cracks without UV light by using vivid red indications. Perfect for field inspections, these portable kits include developer, instructions, a paint marker, and more.