Liquid Penetrant Testing (PT) draws a coloured or fluorescent dye into surface-breaking discontinuities by capillary action; once the developer is applied, the flaws bleed out as clear indications. It works on virtually any non-porous material, including stainless steel, aluminium and many non-metals.
It is the go-to method for detecting surface discontinuities where the material is non-magnetic and MT cannot be used.
Typical Applications
- Stainless and aluminium welds
- Castings and machined components
- Leak-path and surface crack screening
- Non-ferromagnetic assemblies
Why PT (Liquid Penetrant Testing)?
- Works on non-magnetic materials
- Very low equipment cost and high portability
- High sensitivity to fine surface cracks
- Simple, well-established acceptance criteria
Standards & Codes We Work To
TS EN ISO 10228-2EN ISO 1371-1EN ISO 1371-2EN ISO 3452-1 (PT general principles)ASME BPVC Section V, Article 6EN ISO 23277 (Acceptance levels)