PPG 54250000-KAF0 (4-Ltr-Tin)

Additional Product Information

MRO teams and aircraft engineers working on everything from the world’s most advanced military aircraft to passenger airlines trusted with the safety of millions each year rely on PPG 54250000-KAF0 because it delivers a smooth, durable polyurethane surfacer that ensures flawless adhesion of topcoats. Its proven performance across the aviation industry makes it a critical product to keep in stock, especially in AOG situations where downtime must be minimised. By holding PPG 54250000-KAF0 in your MRO inventory, you’re equipped with the same trusted solution used globally to maintain aircraft safety, reliability and compliance.

Key Technical Specs for PPG 54250000-KAF0

• Type: Two-pack polyurethane sanding surfacer.
• Substrates: Aluminium, epoxy and polyester primers, polyamide and common composites.
• Performance highlights: high flexibility, good water and fluid resistance, formulated for sanding to a smooth surface prior to topcoat.
• NDT / avionics note: Formulation is reported to be transparent to ultrasound and radar, so it won’t interfere with common NDT/radar inspections.
• Load-bearing: Not a structural or load-bearing material . Surfacer, cosmetic, prep layer only.
• Classification / hazard: flammable liquid (UN 1263, Class 3, PG III).
• Typical shelf / storage: Unopened components typically stored under recommended conditions. Commonly ~24 months.
• Application: spray application, sandable to specified grit before topcoat.

Approvals & Specifications for PPG 54250000-KAF0

• Product is qualified to various aerospace coating specs used by OEMs and MROs. Commonly referenced/quoted items include:
• ASNA 4251
• BLGG 900101, HMDC0003, MDL 5045, RRJ0000-RE-314-528
• AIMS compatibility: meets requirements cited under some AIMS references
• OEM usage: Widely used with primer systems and accepted in many airline/MRO paint specs.

Typical Aircraft MRO / AOG Applications for PPG 54250000-KAF0

• Purpose: surfacer step between primer and topcoat. Levels minor surface defects, improves topcoat adhesion and produces a consistent finish.
• Common uses: spot repairs, panel refinish, patch repairs after structural/skin work, composite and metal panel refurbishment.
• AOG value: surfacer operations often gate a paint/repair job. Having the correct surfacer on the shelf avoids multi-day delays waiting for material; for AOG this saves real flight hours and costs.
• Versatility: one surfacer that works across aluminium and composites reduces SKUs and inventory complexity for an MRO.

Compatibility & Safety Notes for PPG 54250000-KAF0

• Compatibility: compatible with common aerospace primers and many topcoats.
• Chemical resistance: good resistance to fluids typical in MRO environments.
• Health & safety: flammable; contains VOCs and reactive components. Use in a spray booth or well-ventilated area, wear appropriate PPE, ground containers during transfer.
• Application best practice: condition components to recommended temperature, mix per TDS, respect pot life, clean equipment immediately after use.

Packaging & Procurement for PPG 54250000-KAF0 (matched to the Aerospheres page and common market packs)

• Sold as: 4-litre tin (base/component). Note: surfacer is a two-pack system — ensure you order the activator/hardener and any specified thinner along with the 4-L tin if you don’t already have them.
• Volume conversion: 4 L = 4.00 litres = 1.05 US gal (1.058 US gal) ≈ 135.3 fl.oz.
• Logistics: hazardous material shipping/regulatory paperwork required due to flammable classification.

Why PPG 54250000-KAF0 is Chosen for AOG / MRO

• Versatility across substrates reduces the number of specialized products in the workshop.
• Sanding / levelling performance gives predictable topcoat results and quicker prep time.
• NDT transparency makes it suitable where ultrasound/radar inspections are performed through coatings.
• Availability in practical 4 L tins suits typical panel or repair jobs without excessive waste.

Practical Suggestions for Your Team (AOG mindset) for PPG 54250000-KAF0

• Stocking: keep at least one or two 4-L tins + activator kits in AOG/rapid response store for immediate patch repairs.
• Kitting: pair surfacer tins with the correct activator, recommended thinner, spray cup filters, spare spray tips and sanding consumables in a single AOG paint kit.
• Training: brief painters on pot life, ambient conditioning, and sanding sequence. Surfacer mistakes are costly later in the paint flow.
• Traceability: record batch numbers, mixing ratios and application locations for QA and paint warranty traceability.
• Storage rotation: rotate stock to keep containers within shelf life and minimize risk of blocked production due to expired materials.

Manufacture / Aviation Spec Codes for PPG 54250000-KAF0

• Manufacturer: PPG Aerospace / PPG Industries distribution channels.
• Also referred to as: PPG 5014 PU Surfacer, PPG 5425 000-KAF0, PU sanding surfacer 4 L.
• Relevant specs / references: ASNA 4251, BLGG 900101, HMDC0003, MDL 5045, RRJ0000-RE-314-528, AIMS compatibility calls.

Alternative Names & Descriptions for PPG 54250000-KAF0

• PPG 54250000-KAF0
• PPG PU Surfacer 5014
• PPG Polyurethane Sanding Surfacer
• PPG 5425 Series Surfacer
• Aerospace PU Surfacer (Grey)
• Aircraft Primer-Surfacer
• 529K002/910K021
• 5425/0000 CELOMER
• 5425-0000
• 5425/0000/4LI