Magnaflux NDT Products: The Complete Guide to Non-Destructive Testing in the UK & Ireland

Magnaflux NDT Products – For weld inspectors, fabricators, and quality assurance engineers across Northern Ireland, the Republic of Ireland, and the UK, choosing the right non-destructive testing (NDT) products is critical. Whether it’s verifying the integrity of a weld or ensuring the safety of aerospace components, inspections must be precise, reliable, and compliant with strict standards.

When it comes to NDT consumables, one brand leads the way worldwide: Magnaflux. With a history stretching back more than 90 years, Magnaflux is trusted across industries for its magnetic particle inspection (MPI) and dye penetrant inspection (DPI) products.

This guide will walk you through:

• What Magnaflux is and how it works in NDT.
• The types of Magnaflux consumables available.
• How to use them effectively for weld inspection.
• Which industries rely on Magnaflux.
• How to choose between MPI and DPI.
• Why sourcing from Norsemen Safety ensures genuine quality and support.

By the end, you’ll understand why Magnaflux remains the global standard in non-destructive testing — and how to order the right products for your inspections.

What is Magnaflux and Why is it Used in Non-Destructive Testing?

Non-destructive testing (NDT) is the process of evaluating materials, welds, and components for hidden defects without causing damage. It’s essential for safety-critical industries, where even a hairline crack could lead to catastrophic failure.

Magnaflux manufactures specialist MPI and DPI consumables that reveal surface and near-surface flaws. These products are engineered for accuracy, repeatability, and compliance with EN ISO, ASTM, ASME, and NADCAP standards.

Key Benefits of Magnaflux in NDT:

• High sensitivity for flaw detection.
• Certified for use in aerospace, automotive, energy, and manufacturing.
• Suitable for both ferromagnetic and non-magnetic materials.
• Available in portable formats for on-site inspections.

In short, Magnaflux gives inspectors the confidence that every weld, component, or casting meets the required standard of safety and reliability.

Step 1: Understand the Two Main Magnaflux Testing Methods

Magnetic Particle Inspection (MPI)

• Best for: Ferromagnetic materials (steel, cast iron, welds).
• How it works:
  1. A magnetic field is applied to the part.
  2. Magnaflux magnetic particles (powder or liquid suspension) are applied.
  3. Particles gather at discontinuities, revealing cracks or flaws.
• Products needed:
  • Magnetic powders (dry or wet fluorescent).
  • Carrier fluids.
  • MPI sprays for field inspections.

Dye Penetrant Inspection (DPI)

• Best for: Non-magnetic materials (aluminium, titanium, non-ferrous alloys).
• How it works:
  1. Clean the surface thoroughly.
  2. Apply Magnaflux penetrant (visible red or fluorescent).
  3. Allow time for penetrant to seep into cracks.
  4. Remove excess penetrant and apply developer.
  5. Cracks and defects become visible under UV or white light.
• Products needed:
  • Penetrant sprays.
  • Developers.
  • Cleaners/emulsifiers.

Both methods are non-destructive and deliver fast, repeatable results — one of the key reasons Magnaflux non-destructive testing consumables are trusted globally.

Step 2: Choose the Right Magnaflux Consumables

Magnetic Particle Inspection Products

• Dry powders – high contrast under visible light.
• Wet fluorescent particles – ultra-sensitive, used with UV lamps.
• Aerosols – portable, perfect for field weld inspections.

Dye Penetrant Products

• Visible red penetrants – quick, simple, high contrast.
• Fluorescent penetrants – ultra-high sensitivity for aerospace/defence.
• Developers – draw penetrant from cracks for clear flaw visibility.
• Emulsifiers and removers – ensure a clean, controlled process.

Accessories

• UV lamps for fluorescent inspections.
• Pre-cleaners and degreasers.
• Test panels to validate inspection systems.

Browse our range of Magnaflux non-destructive testing products here.

Step 3: Apply Magnaflux in Your Industry

Aerospace: Checking landing gear, turbines, and precision components.
Automotive: Ensuring engine parts and suspensions meet strict safety standards.
Energy/Oil & Gas: Inspecting welds in pipelines and refineries.
Shipbuilding: Detecting flaws in hulls and heavy fabrications.
Manufacturing & Construction: Routine weld testing for structural steelwork.

Every industry benefits from the accuracy, compliance, and reliability of Magnaflux consumables.

Step 4: How to Decide Between MPI and DPI

Material	Recommended Test	Why?
Ferromagnetic (steel, iron)	Magnetic Particle Inspection (MPI)	Detects surface and near-surface flaws quickly
Non-ferrous alloys (aluminium, titanium)	Dye Penetrant Inspection (DPI)	Sensitive for cracks, porosity, and fine surface defects
Aerospace-grade alloys	Fluorescent DPI	Highest sensitivity, NADCAP-approved
Heavy fabrication (shipbuilding, energy)	MPI	Reliable for large welds and castings

Still unsure? Contact Norsemen Safety for expert advice on choosing the right Magnaflux NDT products for your application.

Step 5: Why Buy Magnaflux from Norsemen Safety?

1. Authorised Distributor – Genuine stock, direct supply chain.
2. Fast Delivery – Across Northern Ireland, Republic of Ireland, and the UK.
3. Industry Expertise – Support from welding calibration to PPE.
4. Trusted by Professionals – 30+ years supplying safety & welding equipment.

When you order through Norsemen Safety, you’re not just buying a can of penetrant spray — you’re partnering with a distributor who understands the whole safety and inspection process.

Frequently Asked Questions

Q: What is Magnaflux used for in welding?
A: Magnaflux consumables detect cracks, porosity, and discontinuities in welds without damaging the joint.

Q: Can Magnaflux be used in aerospace inspections?
A: Yes — Magnaflux penetrants and powders are certified for aerospace and defence inspections under NADCAP.

Q: Do Magnaflux products meet EN ISO standards?
A: Yes — Magnaflux consumables comply with EN ISO 9934 (MPI) and EN ISO 3452 (DPI).

Q: Where can I buy Magnaflux in Northern Ireland or the UK?
A: Directly from Norsemen Safety – trusted Magnaflux distributor.

Conclusion

The complete guide to Magnaflux NDT products shows why industries worldwide rely on this brand for non-destructive testing. Whether you’re carrying out magnetic particle inspection on steel welds or using dye penetrant consumables on aerospace alloys, Magnaflux provides the accuracy and compliance you need.

Order your Magnaflux NDT products from Norsemen Safety today for fast delivery across Northern Ireland, the Republic of Ireland, and the UK.