AkzoNobel AVIOX 77702 702443 (1.32 US gal / 5 Ltr Tin)

Aviox Finish 77702 Polyurethane Top Coat

Overview

Aviox Finish 77702 is a three-component, high-solids, low VOC polyurethane topcoat developed by AkzoNobel Aerospace Coatings for aircraft exterior finishing. Designed as a single-stage, isocyanate-cured coating, it delivers outstanding gloss retention, UV resistance, chemical resistance and long-term durability while reducing process cycle times through advanced high-solids technology. Multiple activator options provide a wide application window for different aircraft sizes, environmental conditions and repair requirements, making it an excellent choice for OEM production and MRO refinishing.

Key Technical Specs

• Product Type: Three-component high-solids polyurethane aircraft exterior topcoat
• Finish: High gloss
• Mix Ratio (by Volume): 2 Parts Aviox Finish 77702 : 1 Part Hardener 90150 : 1 Part Activator
• Activator Options: 99321, 99322, 99330, 99341
• VOC: Maximum 420 g/L (3.5 lb/gal)
• Recommended Dry Film Thickness: 50-130 microns (2.0-5.2 mils)
• Gloss (60°): Minimum 90 GU
• Theoretical Coverage: 10 m�/L at 50 micron DFT
• Initial Spray Viscosity: 21-30 seconds (ISO Cup #4)
• Application Temperature: 15-35°C
• Relative Humidity: 35-75%
• Pot Life:
  • Activator 99321 - 2 hours
  • Activator 99322 - 2 hours (white and grey colours), 1.5 hours (other colours)
  • Activator 99330 - 1 hour
  • Activator 99341 - 2 hours
• Shelf Life:
  • Aviox Finish 77702 Base - 24 months
  • Hardener 90150 - 24 months
  • Activators 99321, 99322, 99330 & 99341 - 36 months

Approvals & Specifications

• Airbus AIMS 04-04-025
• Airbus AIMS 04-04-031
• Airbus AIMS 04-04-032
• Embraer MEP 10-069
• UK Ministry of Defence BS2X34 Type A

Typical Applications

• Commercial aircraft exterior finishing
• Military aircraft exterior coating systems
• Aircraft repainting and refurbishment
• OEM aircraft production
• Exterior repairs and spot refinishing
• High-gloss airline, corporate and defence liveries

Compatibility & Safety Notes

• Compatible with most commonly used aerospace primer systems
• Apply preferably over freshly applied primer while observing primer recoat windows
• Remove oil, grease and other contaminants before application
• Recondition aged primers or topcoats using very fine aluminium oxide non-woven abrasives or P320 stearate-free abrasive paper
• Spot repairs can be completed using Spot Repair Activator SRA9009
• Comply with all local safety, disposal and transport regulations and consult the Safety Data Sheet (SDS) before use

Packaging & Procurement

• Aviox Finish 77702 Base
• Hardener 90150
• Activator 99321
• Activator 99322
• Activator 99330
• Activator 99341
• Available in a wide range of solid aircraft colours

Why This Product is Chosen for AOG / MRO

• Outstanding UV resistance and gloss retention reduce repaint frequency
• Excellent resistance to aircraft hydraulic fluids and aerospace chemicals
• Multiple activators provide flexibility for different aircraft sizes and ambient conditions
• Spot repair capability helps minimise aircraft downtime
• High-solids formulation reduces VOC emissions while improving productivity
• Approved to major Airbus, Embraer and UK MoD aerospace specifications

Practical Suggestions for Your Team (AOG Mindset)

• Select the correct activator according to aircraft size, repair area and ambient temperature
• Mix the base with Hardener 90150 for at least 60 seconds before adding the activator, then mix for a further 60 seconds
• Apply two full wet coats, adding a third coat only where additional hiding is required
• Use the recommended flash-off time for the selected activator before applying subsequent coats
• Apply an off-white foundation colour before bright transparent colours to reduce the number of coats required
• Clean spray equipment immediately after use with Solvent Cleaning C 28/15 or Solvent Cleaning 98068

Manufacturer / Aviation Spec Codes

• Manufacturer: AkzoNobel Aerospace Coatings
• Product Name: Aviox Finish 77702
• Product Type: Three-component high-solids polyurethane aircraft exterior topcoat
• Mix Components: Aviox Finish 77702 + Hardener 90150 + Activator 99321 / 99322 / 99330 / 99341
• Primary Application: Aircraft exterior finishing and refinishing
• Key Specifications: Airbus AIMS 04-04-025, AIMS 04-04-031, AIMS 04-04-032, Embraer MEP 10-069, UK MoD BS2X34 Type A