PPG 8800CSZ-GSK0 (2.5-Ltr-Tin)

Desothane® HS CA8800 Buffable Polyurethane Topcoat

Overview

Desothane® HS CA8800 Buffable Polyurethane Topcoat is a high-solids, low VOC polyurethane aircraft exterior coating developed by PPG Aerospace to provide exceptional gloss, durability and weather resistance. Designed for application over Desoprime™ epoxy primers and Desofill™ surfacers, the coating can be buffed after curing to remove minor imperfections while maintaining excellent image clarity and gloss retention. With outstanding impact, erosion and Skydrol® resistance, CA8800 is widely used for OEM aircraft production and MRO repainting where premium cosmetic finishes are required.

Key Technical Specs

• Product Type: High-solids buffable polyurethane aircraft exterior topcoat
• Mix Ratio (by Volume): 2 Parts CA8800 Base : 1 Part CA8800Z Activator : 1 Part CA8800CT Series Thinner
• Available Thinners: CA8800CT, CA8800CTR, CA8800CT1, CA8800CT2, CA8800CT3, CA8800CT4
• Service Temperature: -54°C to +177°C (-65°F to +350°F)
• Recommended Dry Film Thickness: 50-75 microns (2-3 mils)
• Theoretical Coverage: 20 m�/L at 25 micron DFT
• Gloss: 90+ Gloss Units (60°)
• Dry Film Density: 1.48 g/cm�
• VOC (Ready for Use): 420 g/L
• Application Temperature: 15-30°C
• Relative Humidity: 20-90%
• Pot Life:
  • CA8800CT / CA8800CTR - 3 hours
  • CA8800CT1 - 2 hours
  • CA8800CT2 - 1 hour
  • CA8800CT3 - 45 minutes
  • CA8800CT4 - 30 minutes
• Shelf Life:
  • 24 months (PPG Standard)
  • 12 months when supplied to most OEM material specifications

Approvals & Specifications

• AMS 3095
• BAMS 565-009 Grade B Type II
• BMS 10-125 Type III & VI Grade D
• DHMS C4.04 Type 6 Class B Grade B
• GAMPS 3209
• MEP 10-069
• MM1276 Type II
• MS100029E Class HS
• PAI 3760
• VMS C4.04
• Meets BMS 10-60 Type II Class B Grade D
• Meets BMS 10-72 Type VIII
• Meets BMS 10-126 Type I Grade D

Typical Applications

• Commercial aircraft exterior finishing
• Business jet exterior paint systems
• Military aircraft topcoats
• Aircraft repainting and refurbishment
• OEM aircraft production
• Exterior coatings requiring post-cure buffing and cosmetic correction

Compatibility & Safety Notes

• Designed for application over Desoprime™ epoxy primers, Desofill™ surfacers and approved intermediate coatings
• Clean surfaces using DeSoto® CN20, CN44 or Desoclean™ 110 solvent cleaners before application
• Condition all components between 13°C and 35°C for at least 24 hours before mixing
• Ground both the aircraft and spray equipment before application to minimise static discharge
• Clean spray equipment immediately after use using DeSoto® CN20, CN44 or Desoclean™ 45 solvent cleaners
• Consult the Safety Data Sheet (SDS) before use and avoid overexposure

Packaging & Procurement

• CA8800 Base Component
• CA8800Z Buffable Activator
• CA8800CT Series Thinners (CT, CTR, CT1, CT2, CT3 and CT4)
• Available in a wide range of aircraft exterior colours

Why This Product is Chosen for AOG / MRO

• Buffable finish allows removal of minor defects without repainting
• Excellent gloss retention and image clarity produce premium exterior finishes
• Outstanding resistance to Skydrol®, erosion and environmental exposure
• Wide range of thinner options supports application across varying climatic conditions
• Compatible with major aerospace primer systems and OEM paint processes
• High-solids formulation delivers excellent productivity with low VOC emissions

Practical Suggestions for Your Team (AOG Mindset)

• Select the appropriate CA8800CT thinner according to ambient temperature and repair size
• Maintain the specified 2:1:1 mix ratio and keep the coating agitated during spraying
• Apply two or three medium coats with approximately 50% overlap to achieve the recommended film thickness
• Allow the first coat to tack before applying subsequent coats to minimise sagging and orange peel
• Use accelerated curing (30 minutes flash-off followed by 60 minutes at 49°C) where approved to reduce turnaround time
• Buff only after the coating has fully cured to achieve the highest cosmetic finish quality

Manufacturer / Aviation Spec Codes

• Manufacturer: PPG Aerospace (PRC-DeSoto)
• Product Name: Desothane® HS CA8800 Buffable Polyurethane Topcoat
• Product Type: High-solids buffable polyurethane aircraft exterior topcoat
• Mix Components: CA8800 Base + CA8800Z Activator + CA8800CT Series Thinner
• Primary Application: Aircraft exterior finishing and refinishing
• Key Specifications: AMS 3095, BAMS 565-009, BMS 10-125, BMS 10-60, BMS 10-72, BMS 10-126