AkzoNobel 473-13/C-31 Clear DPM43430 Integral Fuel Tank Coating – Gallon Kit

AkzoNobel 473-13/C-31 is a clear integral fuel tank coating qualified to DPM43430-1 and DPM43430-2 specifications — used on aircraft integral fuel tank interior surfaces requiring a clear (transparent) coating system rather than the yellow-colored coating of alternative fuel tank products. The DPM (Douglas Product Material) specification family is used by Boeing Commercial Airplanes for materials previously specified by McDonnell Douglas aircraft (MD-11, DC-9, DC-10, C-17, and related derivatives) — specifying materials that meet the performance requirements established during the Douglas heritage aircraft programs.

The clear formulation of 473-13/C-31 provides fuel resistance and corrosion protection equivalent to opaque yellow fuel tank coatings, while allowing visual inspection of the underlying tank structure through the clear coating film. This is an advantage in inspection operations where the condition of the aluminum tank structure (corrosion, cracking, or deformation) can be evaluated by visual inspection through the clear coating layer without removing the coating for inspection access.

The gallon kit provides production-scale material for integral fuel tank coating operations, with sufficient volume for treating significant tank interior surface areas during scheduled fuel tank inspection and re-coating maintenance events.

Technical Information

AkzoNobel 473-13/C-31 uses a clear two-component epoxy binder system formulated for continuous immersion in aviation jet fuels (Jet-A, Jet-A1, JP-8) with resistance to the full range of fuel additives and contamination encountered in commercial and cargo aircraft fuel systems. The clear epoxy binder achieves the DPM43430 specification’s requirements for adhesion, fuel immersion resistance, flexibility, and corrosion protection without the pigment loading that creates opacity in standard fuel tank coatings.

The clarity of the cured 473-13/C-31 film is maintained through careful selection of clear epoxy components with minimal color bodies or UV-induced yellowing tendency. While some yellowing may develop over extended service in fuel-immersed conditions, the film should remain sufficiently transparent to enable structural condition inspection through the coating layer throughout the inspection interval between re-coating events.

Application of 473-13/C-31 follows the same fuel tank safety and confined space entry procedures as other fuel tank coatings — proper ventilation, explosion-proof equipment, vapor monitoring, and appropriate PPE are essential for safe fuel tank coating operations. Comply with all applicable fuel tank safety procedures per the aircraft’s AMM and applicable regulatory requirements.

Why Choose AkzoNobel 473-13/C-31 Clear?

• ✅ DPM43430 Qualified — Boeing/Douglas heritage specification approved
• ✅ Clear Film — Allows inspection of tank structure through coating
• ✅ Fuel Immersion Resistant — Long-term protection in jet fuel service
• ✅ Corrosion Protection — Shields aluminum tank structure from degradation
• ✅ Gallon Production Format — Volume for tank coating operations

Applications

473-13/C-31 is used for interior coating of Boeing/Douglas heritage commercial aircraft integral fuel tanks during scheduled tank inspection and re-coating operations requiring DPM43430 qualified clear tank coating.

Frequently Asked Questions

Q: What is AkzoNobel 473-13/C-31?
A: 473-13/C-31 is a clear DPM43430 spec integral fuel tank coating for Boeing/Douglas heritage aircraft — providing fuel resistance and corrosion protection with a transparent film that allows inspection of tank structure.

Q: MPN for AkzoNobel 473-13 gallon?
A: MPN is S69460.

Q: What is DPM43430?
A: DPM (Douglas Product Material) 43430 is a Boeing Commercial Airplanes material specification for integral fuel tank coatings on aircraft previously specified by McDonnell Douglas — including MD-11, DC-9/10, and related aircraft types.

Q: Why is clear fuel tank coating preferred over yellow?
A: Clear coating allows visual inspection of the underlying aluminum tank structure through the coating film, enabling condition assessment during inspection without removing the coating for access.

Q: What aircraft use DPM43430 specified tank coating?
A: DPM43430 is used on Boeing/Douglas heritage aircraft including the MD-11, DC-9 family, DC-10/MD-10, and related variants. Verify the applicable maintenance manual for your specific aircraft type.