KRYTOX-283AD (2-oz-Tube)

Krytox™ 283AD Aerospace Anti-Corrosion Grease

Overview

Krytox™ 283AD is a high-performance PFPE (perfluoropolyether) aerospace anti-corrosion grease developed by Chemours for demanding aircraft lubrication applications. Formulated with a PTFE thickener and sodium nitrite corrosion inhibitor, it provides exceptional corrosion protection, excellent thermal stability and long service life in harsh operating environments. The grease is chemically inert, non-flammable and resistant to oxidation, making it suitable for bearings, actuators, control systems and other aerospace components exposed to extreme temperatures and aggressive chemicals.

Key Technical Specs

• Product Type: PFPE anti-corrosion aerospace grease
• Product Grade: Krytox™ 283AD
• Colour: White
• Base Oil Viscosity: 1540 cSt at 20°C
• Base Oil Viscosity: 502 cSt at 38°C
• Base Oil Viscosity: 44 cSt at 99°C
• Base Oil Viscosity: 6.0 cSt at 204°C
• Base Oil Pour Point: -30°C
• Grease Density: 1.93 g/mL at 25°C
• Penetration (60 Strokes): 265-295
• Estimated Service Temperature Range: -29°C to +316°C (-20°F to +600°F)
• Oil Separation: 3 wt% at 99°C / 10 wt% at 204°C (30 hr)

Approvals & Specifications

• ASTM D445 (Viscosity)
• ASTM D217 (Penetration)
• ASTM D942 (Oxidation Stability)
• ASTM D2512 / NASA MSFC 106B (Liquid Oxygen Impact)
• ASTM D6184 (Oil Separation)
• ASTM D97 (Pour Point)

Typical Applications

• Aerospace bearings
• Aircraft control systems
• Actuators
• Corrosion-sensitive aerospace mechanisms
• High-temperature lubrication
• Chemically aggressive operating environments
• Long-life aircraft lubrication applications

Key Features & Benefits

• Excellent corrosion protection through sodium nitrite inhibitor.
• Outstanding thermal stability over a wide operating temperature range.
• PFPE formulation is chemically inert and non-reactive.
• Non-flammable and suitable for oxygen service.
• Exceptional resistance to oxidation and aggressive chemicals.
• Long service life reduces maintenance intervals.
• PTFE thickener provides excellent mechanical stability.
• Suitable for demanding aerospace lubrication applications.

Application Guidelines

• Clean components thoroughly before applying fresh grease.
• Apply only the quantity recommended by the equipment manufacturer.
• Avoid mixing with incompatible lubricants.
• Use clean application tools to prevent contamination.
• Follow aircraft maintenance manual lubrication intervals.

Compatibility & Limitations

• Compatible with many aerospace metals and engineering materials.
• Suitable for oxygen service and chemically aggressive environments.
• Provides corrosion protection through sodium nitrite additive.
• Application suitability should be verified for specific elastomers and plastics.
• Designed for aerospace and other high-performance industrial applications.

Packaging & Procurement

• Available through Chemours authorised distributors
• Part of the Krytox™ 283 anti-corrosion grease series
• Available in multiple package sizes depending on distributor

Why This Product is Chosen for AOG / MRO

• Long lubricant life reduces maintenance frequency.
• Excellent corrosion resistance protects critical aircraft components.
• Performs reliably at both low and extremely high temperatures.
• Resists aircraft fluids and harsh chemical environments.
• Suitable for critical aerospace bearings and moving mechanisms.

Practical Suggestions for Your Team (AOG Mindset)

• Do not mix Krytox™ grease with conventional hydrocarbon greases.
• Ensure old lubricant is completely removed before relubrication.
• Prevent contamination during application by using clean dispensing equipment.
• Follow OEM lubrication quantities to avoid over-packing bearings.
• Store containers sealed to maintain lubricant cleanliness.

Manufacturer / Aviation Spec Codes

• Product Name: Krytox™ 283AD
• Manufacturer: Chemours
• Product Type: PFPE anti-corrosion aerospace grease
• Grease Series: Krytox™ 283
• Primary Test Standards: ASTM D445, ASTM D217, ASTM D942, ASTM D2512