Visible dye penetrant
Portable, high-contrast examination for field and fabrication applications.
Surface flaw detection
Liquid Penetrant Testing Services
Liquid penetrant testing is a sensitive, portable NDT method used to reveal surface-breaking discontinuities in clean, nonporous materials.
Inspection done right
Reliable results for critical assets
NVI performs visible dye and fluorescent penetrant examinations using procedures selected for the material, surface condition, environment, and acceptance criteria.
After surface preparation, penetrant is applied and allowed to enter open discontinuities. Excess penetrant is removed and developer draws indications to the surface for evaluation and documentation by trained technicians.
Capabilities
What NVI provides
Fluorescent penetrant
Enhanced sensitivity under controlled ultraviolet lighting where the procedure requires it.
Weld examination
Detection of surface-connected cracks, porosity, laps, seams, and other relevant indications.
Castings and forgings
Surface inspection of nonporous components before service or during maintenance.
Repair verification
Focused examination after grinding, excavation, welding, or other repair activity.
Field reporting
Documented examination conditions, indication locations, results, and acceptance status.
Applications
Where this service is used
- Austenitic and nonferromagnetic materials
- Welds and repaired areas
- Castings and forgings
- Machined components
- Pressure-containing components
- Fabrication quality control
Quality and compliance
Built around your requirements
NVI develops each inspection scope around the asset, operating conditions, applicable code, and client procedure. Certified technicians provide timely field communication and clear reporting so owners can make informed maintenance decisions.
Start a conversation
Need an inspection plan for your asset?
Tell us about the scope, location, schedule, and applicable requirements. NVI will help identify an efficient inspection approach.