non destructive testing

P721 Crack Detector Developer by Prolix Auto Care is a professional-grade developer spray used in liquid penetrant testing (LPT/NDT) to reveal hidden cracks, fractures, and surface defects on metal components. Applied after the penetrant step, it draws trapped penetrant to the surface and produces a clearly visible red indication line at the exact location of any crack.

✅ Reveals hairline and micro-cracks on metal surfaces
✅ Produces sharp, clearly visible red crack indication lines
✅ Designed for use after Crack Detector Penetrant (P720)
✅ Fast-acting formula for efficient inspection workflow
✅ Suitable for all metal types and NDT applications

Brand: Prolix Auto Care
Product Code: P721