Liquid Penetrant Testing

Surface Flaw Detection with High Sensitivity & Efficiency

At MB Engineering & Inspection Services, we offer advanced Liquid Penetrant Testing (LPT) as part of our commitment to delivering reliable and precise Non-Destructive Testing (NDT) services. Our LPT services are trusted by clients in maritime, oil & gas, infrastructure, and manufacturing sectors to identify surface-breaking flaws in critical components where precision and compliance are non-negotiable.

What is LPT?

Liquid Penetrant Testing is a widely used NDT technique designed to detect surface defects such as:

Cracks

Porosity

Seams

Surface discontinuities

The process involves applying a visible or fluorescent dye penetrant to the surface of the test object, allowing it to seep into any open surface flaws. After removal of excess penetrant and application of a developer, any trapped dye becomes visible, highlighting the flaws for evaluation.

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Where We Apply LPT at MB Engineering:

With a portfolio built on complex and high-stakes projects, we integrate LPT across a wide range of operational domains:

Shipbuilding & Marine Applications
Inspecting new builds and retrofit welds for surface flaws before coating, ensuring long-term durability in seaworthy conditions.

Ship Boiler & Vessel Inspections
Verifying the integrity of pressurised vessels and weld zones in marine boilers to prevent failures and improve safety compliance.

Port Equipment & Cranes
LPT is deployed to detect fatigue cracks on critical structural points of Quay Cranes (QC), RTGs, and ARMGs—before they become operational hazards.

Process Plants & Pressure Systems
Ideal for non-ferrous parts where magnetic testing is not suitable, LPT allows us to ensure welding quality and structural soundness in tanks, pipelines, and plant infrastructure.

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🎯 Why Choose MB Engineering for LPT?

✅ Experienced Team
Certified NDT inspectors with deep experience in marine, port, and industrial inspection.

✅ International Standards Compliance
We conduct inspections in accordance with ASME, ASTM, ISO, and AWS standards.

✅ High Sensitivity & Accuracy
Able to detect flaws as narrow as a few microns, ensuring reliability in the most demanding applications.

✅ On-Site or Workshop-Based Testing
Whether it's an offshore port terminal or a shipyard in Singapore, we adapt to your operational environment.

✅ Pre-Coating or Post-Fabrication Inspections
Ensures that the asset is free from surface-breaking defects before painting or heat treatment.

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🚢 Proven Track Record in Industry

MB Engineering has delivered successful projects in:

Ship New Build Radiography & Surface Testing

Boiler & Vessel Inspection

Port Equipment Structural Surveys

Critical Plant Infrastructure Testing