NDT Services

Liquid Penetrant Testing (LPT)

Simple and effective surface crack detection using dye penetrant for non-porous materials

What is Liquid Penetrant Testing?

Liquid penetrant testing uses colored or fluorescent dye to highlight surface-breaking cracks that are made visible by applying a developer powder on non-porous materials.

How It Works

Surface Preparation

Thoroughly clean and dry the surface.

Penetrant Application

Apply penetrant liquid and allow time to seep into cracks.

Defect Revelation

Remove excess penetrant and spray developer powder to reveal defects.

Liquid Penetrant Testing in Action

Advanced LPT Equipment

Real-time Inspection

Crack Detection Results

Advantages

Simple, sensitive to very fine surface cracks
Works on virtually all solid, non-porous materials

Limitations

Only detects surface defects
Requires meticulous cleaning
Not suitable for porous materials

Practical Applications

Welds

Critical weld inspection

Turbine Blades

Precision component testing

Pressure Vessels

Vessel integrity verification

Aircraft Parts

Aerospace component inspection

Automotive Components

Vehicle part quality control