MOD-Approved. Def Stan Compliant. MIL-Spec Equivalent.

Manufactured at our UK facility, the PX range of MOD-approved corrosion inhibitors is trusted by defence, aviation, and industrial sectors worldwide. Each product meets key UK Defence Standards (Def Stan) and aligns with equivalent NATO and US Military Specifications (MIL-Spec), delivering consistent performance, long-term protection, and peace of mind in the toughest conditions.

We are the original manufacturers of these products. All PX formulations are produced onsite—not repackaged or resold. This ensures full batch traceability, reliable supply, and consistency between orders. We also offer testing and recertification services for expired product batches, and provide full analysis and conformity certification to support your compliance needs.

We ship globally and accept payment in multiple currencies, making it simple to work with us, wherever you operate.

PX-6 | Hard Petrolatum (Def Stan 91-38)

For static parts and long-term storage.

  • Cold-applied, solid petrolatum grease
  • Creates a dense, water-repellent film
  • Ideal for airframes, weapon housings, and unpainted components in storage
  • MOD Designation: PX-6 | NATO S-743
  • MIL-Spec Equivalent: MIL-C-16173E Grades 2–4

PX-7 | Soft Petrolatum (Def Stan 91-38)

For areas needing easy application and removal.

  • Softer consistency for better handling
  • Reusable, reapplicable coating
  • Excellent for battery terminals, moving assemblies, and maintenance access points
  • MOD Designation: PX-7 | NATO S-743
  • MIL-Spec Equivalent: MIL-C-16173E Grades 2–4
  • Compared to PX-6, PX-7’s softer texture allows easier application and faster removal, especially on frequently accessed parts.

PX-11 | Hot-Applied Petrolatum with Wax (Def Stan 80-85/1)

Soft-film protection with enhanced adhesion.

  • Blended with beeswax for improved coverage
  • Applied warm (∼65 °C) for thick, flexible barrier
  • Excellent for active components or field gear requiring resilience
  • MOD Designation: PX-11
  • NATO Code: C-628
  • MIL-Spec Equivalent: MIL-C-11796C

PX-32 | Heavy-Duty Waxy Film (Def Stan 80-83/3)

Our toughest barrier for exterior defence.

  • Cold-applied, waxy film that resists extreme temperatures
  • Operational range: −40 °C to +110 °C
  • Withstands de-icing fluids, aircraft cleaners, and solvents
  • Offers up to 2 years of outdoor protection
  • MOD Designation: PX-32 | NATO S-749
  • NATO Code: C-620
  • MIL-Spec Equivalent: MIL-C-16173E Grades 1–4

 

Why Choose the PX Range?

Manufacturing Credentials

  • Manufactured In-House — We are not resellers
  • MOD Approved & Def Stan Compliant
  • NATO Designated / Coded
  • US MIL-Spec Equivalent Certified

Performance & Application

  • Cold & Hot Application Options
  • Exceptional Water and Salt Spray Resistance
  • Easy Application by Brush, Dip or Spray
  • Safe for Use on Ferrous and Non-Ferrous Metals
  • Silicone-Free, Halogen-Free (PX-32)

Support & Logistics

  • Full Testing, Recertification and Batch Analysis Available
  • Global Shipping & Multi-Currency Payments Accepted

Global Standards Comparison Table

PX Product UK Def Stan / JSD NATO Code US MIL-Spec Equivalent
PX-6 91-38 / PX-6 S-743 MIL-C-16173E (Grades 2–4)
PX-7 91-38 / PX-7 S-743 MIL-C-16173E (Grades 2–4)
PX-11 80-85 / PX-11 C-628 MIL-C-11796C
PX-32 80-83 / PX-32 C-620 MIL-C-16173E (Grades 1–4)

Packaging Options

Our PX products are available in a range of convenient packaging formats to suit various usage and handling needs:

  • 500ml jars
  • 1kg tins
  • 3kg tins
  • 12kg buckets
  • Additional bulk and custom packaging options available on request

Trusted by Defence and Industry Alike

 

Need a dependable, spec-compliant corrosion inhibitor?

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