DuPont Molykote 3400A Anti-Friction Coating – 500g for Aerospace Solid Film Lubrication

DuPont Molykote 3400A is a bonded solid film lubricant anti-friction coating from the globally trusted Molykote brand — providing dry lubrication for aerospace moving parts, threaded fasteners, bearings, and mechanism contact surfaces where liquid lubricants cannot be effectively used or retained due to vacuum environments, extreme temperature, high contact pressures, or slow oscillating motion that requires lubricant film retention without runoff. The solid film binder in Molykote 3400A anchors the lubricant particles to the coated surface, creating a bonded dry film that delivers consistent lubrication through the mechanism’s service life without requiring periodic relubrication.

Anti-friction coatings are critical in aerospace applications where lubricant loss from high-speed moving parts, elevated temperatures, or vacuum exposure would lead to galling, scoring, and seizure of contacting metal surfaces. The bonded film provides a low-friction, low-wear surface coating that substantially reduces the coefficient of friction between contacting metal pairs and prevents the metallic contact that initiates galling and seizing.

The 500g can provides a practical quantity of Molykote 3400A for component-level coating operations, maintenance shop application, and production lubrication coating of small to medium quantities of aerospace components.

Technical Information

Molykote 3400A contains molybdenum disulfide (MoS2) or PTFE-based lubricant particles bonded to the substrate by an organic or inorganic binder system. MoS2 is a layered crystal structure lubricant that provides lubrication by the easy shear of individual layers — the laminar crystal planes slide over each other with very low friction force, separating the contacting metal surfaces and preventing direct metallic contact. The binder system bonds these lubricant particles to the substrate surface, anchoring them against the shear forces of mechanism motion.

The bonded film provides consistent lubricant performance from the first cycle of mechanism motion — unlike grease or oil lubrication that requires run-in to distribute the lubricant, bonded solid films are pre-applied and immediately active upon assembly. This is particularly valuable for mechanisms that must operate correctly from first actuation, such as aircraft control surface actuators, landing gear locking mechanisms, and flight-critical fastener joints.

Cure the applied Molykote 3400A coating per the product data sheet — typically by oven cure at the specified temperature for the required time — before assembling the coated component. Incomplete cure of the binder system produces a coating with inadequate bonding strength that will transfer onto the mating surface rather than remaining bonded to the coated part.

Why Choose Molykote 3400A?

• ✅ Bonded Solid Film — Dry lubrication anchored to surface, no runoff
• ✅ Anti-Galling Protection — Prevents metallic seizure on contact surfaces
• ✅ Long-Term Lubrication — Outlasts liquid lubricants in demanding conditions
• ✅ 500g Maintenance Size — Right quantity for component coating operations
• ✅ Molykote Trusted Brand — DuPont’s globally recognized lubricant brand

Applications

Molykote 3400A is used for aerospace fastener lubrication, actuator mechanism anti-friction coating, bearing surface protection, and moving contact surface lubrication on aircraft and defense systems where dry solid film lubrication is required.

Frequently Asked Questions

Q: What is Molykote 3400A?
A: 3400A is a bonded solid film lubricant anti-friction coating providing dry, long-lasting lubrication for aerospace mechanisms, fasteners, and metal contact surfaces where liquid lubricants cannot be effectively used.

Q: MPN for Molykote 3400A 500g?
A: MPN is 4045296.

Q: Why use solid film lubricant instead of grease?
A: Solid film is used when grease cannot be retained (vacuum, high temperature, high speed), when cleanliness requires no oil or grease, or when the mechanism is sealed and cannot be relubricated in service.

Q: How is Molykote 3400A applied?
A: Apply by brush, spray, or dip to clean, prepared surfaces. Cure per the product data sheet (typically oven cure) before assembling the component. Incomplete cure reduces bonding strength.

Q: Does solid film coating wear out?
A: Yes. Bonded solid films have a finite service life determined by the number of motion cycles and contact pressure. Recoating at overhaul intervals maintains lubrication protection throughout the component’s service life.