Dye Penetrant Testing (PT)
Dye Penetrant Testing (PT) detects surface-breaking defects on virtually any non-porous material, including stainless steel and aluminium.
Overview
Dye Penetrant Testing (PT) applies a coloured or fluorescent penetrant that seeps into surface-breaking defects by capillary action; after removing the excess, a developer draws the penetrant back out to reveal the flaw. Unlike MPI, PT works on non-ferrous materials such as aluminium, stainless steel and titanium.
It is one of the most cost-effective methods for detecting cracks, porosity and leaks on the surface of components, and NDT Australia applies it across fabrication, maintenance and defect-investigation work.
Applications
Dye Penetrant Testing is applied across a wide range of assets and industries, including:
- Crack detection on stainless steel and aluminium welds
- Porosity and leak-path detection on castings
- Surface defect verification on machined parts
- Inspection of non-ferrous and non-magnetic components
Standards & Compliance
Our inspections are performed and reported to the applicable Australian and international standards:
- AS 2062 — Penetrant testing of products and components
- ISO 3452 — Penetrant testing general principles
Why Choose NDT Australia
- Works on virtually any non-porous material
- Highly sensitive to fine surface cracks
- Low cost and portable
- Ideal where MPI cannot be used
Frequently Asked Questions
Related Services
NDT Australia provides these services nationwide with certified, mobile inspectors and clear, compliant reporting.