Dye Penetrant | - Cheapness
- Portability
- High sensitivity
- Immediate result
- Minimum skill required
| - Can only inspect surface of parts accessible to penetrant application
- Defects must be open to surface
- Part preparation such as removal of finishes and sealant required
- No permanent test result
- Direct visual detection of result required
- Requires a high degree of cleanliness for satisfactory inspection
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