AkzoNobel XS420-WHITE-000 (1-LTR-KIT)

Additional Product Information

Overview

TOPCOAT XS420 is a three-component aerospace-grade polyurethane topcoat designed for structural and exterior aircraft protection. Manufactured by MAPAERO SAS, this high-solid coating is widely used in aviation maintenance, repair, and overhaul (MRO) operations to deliver superior chemical resistance, durable gloss finish, and long-term environmental protection for metallic aircraft surfaces. It is commonly applied in combination with chromate-free corrosion protection primer systems to enhance structural reliability.

Key Technical Specs for TOPCOAT XS420

• Type: Three-component polyurethane aerospace topcoat
• Size / Volume: Base 3 L; Hardener 1 L and 5 L; Thinner D713 and D713-2 available in 1 L and 5 L; Touch-up kit 40 mL (30 mL base + 10 mL hardener)
• Color / Gloss Level: >85 GU at 60° for Black, Red, Yellow; >90 GU at 60° for White and Grey
• Viscosity / Consistency: Spraying viscosity range 21–23 ±5 s (ISO 4 cup) depending on temperature
• Cure / Working Time: Pot life 1 hour (Thinner 713-2) to 3 hours (Thinner 713); Flash-off 1–1.5 hours depending on film thickness
• Tensile / Peel Strength: Not specified in datasheet
• Shore Hardness: Not specified in datasheet
• Service Temperature: Application temperature 15°C–35°C (59°F–95°F); Relative humidity 30%–85%
• Typical Film Thickness: 20–60 µm dry (0.8–2.4 mils) / 45–120 µm wet (1.8–4.7 mils)
• Theoretical Coverage: 13 m²/L at 40 µm (529 ft²/gal)
• VOC Content: 420 g/L (3.5 lb/gal)
• Shelf Life: 18 months for base and hardener; 48 months for thinner when stored between 5°C and 35°C (41°F–95°F)

Approvals & Specifications

• Qualified to Messier-Bugatti-Dowty - IFC30-125-06 aerospace specification
• Approved under Aircelle - HMRC0150A aircraft coating standard
• Customer-specific certification requirements may supersede datasheet information

Typical Aircraft MRO / AOG Applications

• Fuselage and structural external surface finishing
• Wing and control surface protective coating
• Landing gear surrounding structural assemblies (with proper primer system)
• Maintenance repainting and cosmetic restoration
• Touch-up repair using XS420 kits
• Exterior metal aircraft component protection

Compatibility & Safety Notes

• Recommended for metallic substrates including aluminium and steel treated by anodisation or conversion coating
• Best adhesion performance when applied over epoxy primer systems such as SP350 corrosion-resistant primer
• Use spray application with dry, oil-free compressed air
• Personal protective equipment must be used according to the Safety Data Sheet
• Equipment cleaning is recommended using suitable thinner such as D713 cleaning solvent

Packaging & Procurement

• Available in base, hardener, and thinner component systems for flexible procurement
• Touch-up repair kits available for AOG maintenance scenarios
• Stored in original sealed packaging at 5°C–35°C for maximum shelf stability
• Designed for easy mixing and spray or brush application workflows

Why TOPCOAT XS420 is Chosen for AOG / MRO

• Rapid and predictable curing cycle supports operational downtime reduction
• High chemical and environmental resistance suitable for aviation exposure conditions
• Excellent gloss stability for professional aircraft exterior appearance
• Versatile application methods for maintenance environments
• Optimized pot life formulation for field and hangar use

Practical Suggestions for Your Team (AOG Mindset)

• Maintain component storage temperature between 18°C and 25°C for 24 hours before mixing when possible
• Prepare surfaces carefully using approved primer systems for maximum coating adhesion
• Monitor viscosity and adjust thinning ratio to reach recommended spraying consistency
• Plan batch mixing according to pot life limitations
• Train maintenance personnel on proper flash-off timing and curing schedule

Manufacture / Aviation Spec Codes

• Manufacturer: MAPAERO SAS
• Product Line ID: XS420
• Specification Codes: IFC30-125-06, HMRC0150A

Alternative Names & Descriptions

• Aircraft polyurethane structural topcoat XS420
• Aerospace exterior protective coating XS420
• MAPAERO polyurethane aviation topcoat
• High-solid aircraft structure protection paint
• XS420 aerospace finishing system