PPG 54407005-KAH0 (5-Ltr)

5440 PU66 8H Polyurethane Gloss Topcoat

Overview

5440 PU66 8H Polyurethane Gloss Topcoat is a conventional-solids, two-component polyurethane aerospace topcoat designed for the protection and decoration of aircraft interior and exterior structures. Engineered to provide exceptional durability, it delivers outstanding resistance to Skydrol®, hydraulic fluids, ultraviolet exposure and long-term weathering. Qualified to numerous Airbus, ASNA and OEM specifications, the 5440 PU66 system is suitable for both OEM aircraft production and maintenance repaint programmes.

Key Technical Specs

• Product Type: Two-component polyurethane gloss topcoat
• Product Name: 5440 PU66 8H PU Topcoat Gloss
• Technology: Polyurethane
• Mix Ratio (Spray): 1 : 1 (Base : Activator 07309000) plus thinner as required
• Mix Ratio (Brush): 5 : 2 (Base : Activator 07079000)
• Pot Life: 8 hours at 21-25°C
• Recommended Dry Film Thickness: 30-50 microns
• Theoretical Coverage: 6-8 m�/L at 40 microns DFT
• Dry Film Density: 1.2-1.6 g/cm� (depending on colour)
• Gloss: ?90 GU (60° gloss meter)

Approvals & Specifications

• Qualified to Airbus AIMS 04-04-066 (RAL 9006 Aluminium only)
• Qualified to Airbus AIMS 04-04-078
• Qualified to ASNA 3626
• Qualified to ASNA 4247
• Qualified to BLGG 140301
• Qualified to DGQT 1.7.0.0145
• Qualified to ECS 2065 (M8001 White only)
• Qualified to HMDC0055
• Qualified to HMRC0060
• Qualified to MDL 5041
• Meets the performance requirements of MIL-PRF-85285

Performance Highlights

• Excellent resistance to Skydrol® and aircraft hydraulic fluids
• Outstanding UV resistance and long-term exterior durability
• High-gloss decorative finish
• Excellent chemical and fluid resistance
• Suitable for both aircraft interior and exterior applications
• Long pot life simplifies large-area painting operations
• Available in a wide range of aerospace colours

Typical Applications

• Aircraft exterior topcoats
• Aircraft interior decorative coatings
• Commercial aircraft repaint programmes
• Military aircraft finishing
• OEM aircraft production
• Aerospace structural components
• Maintenance, repair and overhaul (MRO) repainting

Compatibility & Safety Notes

• Compatible with approved PPG aerospace primer systems including AIMS 04-04-002, 003, 011, 012, 077 and 078
• Use DeSoto® CN20 or Desoclean™ 45 solvent cleaners for surface preparation and equipment cleaning
• No induction time is required after mixing
• Store all components between 5°C and 35°C
• Refer to the Safety Data Sheet (SDS) before use

Application & Curing

• Mix Ratio (Spray): 1 part Base to 1 part Activator 07309000 with thinner added as required
• Mix Ratio (Brush): 5 parts Base to 2 parts Activator 07079000
• Pot Life: 8 hours at 21-25°C
• Application Temperature: 15-35°C
• Relative Humidity: 30-85%
• Apply two cross coats to achieve 30-50 micron DFT
• HVLP Spray Gun: 1.2 mm nozzle at 1.5-2.0 bar
• Pressure Pot: 1.5 mm nozzle at 3-5 bar
• Dust Free: Approximately 2 hours
• Dry to Handle: Approximately 5 hours
• Dry to Tape: 8 hours at 23°C or 30 minutes at 60°C
• Full Cure: 7 days at 23°C, 4 hours at 60°C or 2 hours at 80°C

Packaging & Procurement

• Supplied as a two-component polyurethane coating system
• Base Component: 5440 PU66
• Spray Activator: 07309000
• Brush Activator: 07079000
• Thinner: 04919000
• Available through PPG Aerospace authorised distributors

Why This Product is Chosen for AOG / MRO

• Approved to numerous Airbus and OEM aerospace specifications
• Outstanding resistance to aviation hydraulic fluids including Skydrol®
• Excellent long-term gloss retention and weather durability
• Long working pot life supports large aircraft repaint operations
• Suitable for both spray and brush touch-up applications

Practical Suggestions for Your Team

• Condition all components at 15-35°C for at least 24 hours before mixing.
• Mechanically agitate the base thoroughly before adding the activator.
• Apply two even cross coats to achieve the specified dry film thickness.
• Observe the maximum 72-hour overcoat window at ambient temperature.
• Clean spray equipment immediately after use with DeSoto® CN20 or Desoclean™ 45.

Manufacturer / Aviation Spec Codes

• Product Name: 5440 PU66 8H PU Topcoat Gloss
• Manufacturer: PPG Aerospace
• Product Type: Two-component polyurethane gloss topcoat
• Primary Application: Aircraft interior and exterior protective topcoat
• Key Specifications: AIMS 04-04-066, AIMS 04-04-078, ASNA 3626, ASNA 4247, MIL-PRF-85285