Liquid penetrant examination, which employs fluorescent dye and ultraviolet light to reveal surface faults like cracks and pits, is an area in which Anotek excels. NAS410 and ASTM E1417 are used for liquid penetrant testing and inspections. We have been granted approval by both Nadcap and BAC5423. There are several names for this procedure, but it is most commonly used as a substitute for anodizing. Since this is a specialized process, we recommend going over your needs with us first. Anotek complies with BAC5719 as well as MIL-DTL-5541.