Magnaflux Zyglo ZL-27A Penetrant - Level 3Magnaflux ZL 27A Level 3 Post Emulsifiable Fluorescent Penetrant This advanced penetrant is designed for critical inspections requiring maximum process control and reliability, particularly in safety critical aerospace testing. The ZL 27A is a high sensitivity Type 1 penetrant that excels in detecting fine discontinuities while minimizing the risk of over washing, ensuring the highest reliability in penetrant inspection methods. With a high flash