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MOLYKOTE® D-3484 Anti-Friction Coating

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Heat-curing phenolic resin-based dry film coating with molybdenum disulfide and graphite for permanent lubrication of metal-to-metal interfaces where oil or grease contamination is unacceptable or technical requirements prohibit wet lubricants.

Product Overview

MOLYKOTE® D-3484 Anti-Friction Coating is a heat-curing dry film lubricant formulated with 20% molybdenum disulfide (MoS2) and 5.1% graphite solid lubricants in a phenolic resin binder system designed for permanent lubrication of metal-to-metal friction surfaces operating under moderate to high loads at slow to moderate speeds. Unlike conventional greases and oils that migrate, attract contaminants, or require periodic reapplication, this coating cures to form a durable, adherent solid lubricant film that provides consistent friction reduction and wear protection throughout the component service life. The coating is applied as a liquid and cured at temperatures ranging from 25°C to 200°C, enabling integration into manufacturing processes with flexible heat treatment requirements.

Engineered for applications where wet lubricants are technically unsuitable or create unacceptable contamination risks, MOLYKOTE® D-3484 delivers exceptional performance across a service temperature range of -70°C to 250°C (-94°F to 482°F). The coating’s high compressive strength and abrasion resistance make it ideal for heavily loaded friction pairs including threaded fasteners, safety mechanism pawls, seatbelt components, toothed gears, coupling sleeves, and mechanical linkages in automotive, construction equipment, and agricultural machinery. The high flash point formulation ensures safe application in high-volume production environments without fire hazard concerns associated with solvent-rich coatings.

Applications

Automotive seatbelt mechanism components and pawls
Safety cutout pawls and locking mechanisms
Threaded fasteners requiring precise torque control
Toothed gears in low-speed power transmission
Truck and trailer coupling sleeves
Automotive trunk lid and hood lock mechanisms
Carburetor linkages and throttle springs
Construction equipment bolts and pivot levers
Agricultural machinery mechanical linkages
Automotive safety system ratchet mechanisms
Assembly and run-in lubrication for high-load components
Metal stamping and forming dies

Features & Benefits

Permanent Dry Film Lubrication

Heat-cured coating bonds to metal surfaces to provide lifetime lubrication without the migration, evaporation, or degradation associated with wet lubricants, eliminating maintenance requirements and reducing total cost of ownership in sealed assemblies and inaccessible mechanisms.

Contamination-Free Operation

Solid film eliminates oil and grease seepage that attracts dirt, interferes with automated assembly processes, or contaminates adjacent components like brake pads, sensors, or electronic assemblies, ensuring clean production environments and reliable system performance.

Extreme Temperature Capability

Maintains lubrication effectiveness from -70°C to 250°C without thermal degradation, viscosity changes, or loss of friction reduction properties, providing reliable performance in underhood automotive applications and industrial equipment exposed to temperature extremes.

High Compressive Strength and Load Capacity

Molybdenum disulfide and graphite solid lubricants withstand extreme pressure conditions in heavily loaded friction pairs, preventing galling, seizure, and premature wear in threaded connections, gear teeth, and safety mechanism engagement surfaces.

Excellent Abrasion Resistance

Phenolic resin binder system creates a durable coating that resists mechanical wear from repeated cycling, extending service life in high-duty cycle applications like seatbelt retractors and safety pawl mechanisms.

Flexible Curing Profile

Heat cure temperature range from 25°C to 200°C enables integration into existing manufacturing processes with varying thermal budgets, from room-temperature air dry operations to high-temperature paint line curing systems.

Problems Solved

Oil and Grease Contamination in Safety Mechanisms

Eliminates the lubricant migration and contamination that causes seatbelt webbing staining, sensor fouling, and brake system contamination when conventional greases migrate from adjacent mechanical components during vehicle operation and temperature cycling.

Threaded Fastener Galling and Inconsistent Torque

Provides consistent coefficient of friction in threaded connections to enable accurate torque-to-clamp relationships in critical automotive and machinery assemblies, preventing the galling, cold welding, and over-torquing that cause joint failure or thread stripping.

Production Line Contamination and Assembly Issues

Eliminates the grease contamination of robotic grippers, assembly fixtures, and painted surfaces that occurs when wet lubricants squeeze out during component assembly, reducing scrap rates and enabling automated manufacturing processes.

Lubrication Degradation in Sealed Mechanisms

Provides permanent lubrication in sealed assemblies like trunk locks and safety pawls where access for relubrication is impossible, eliminating the binding, noise, and functional failures that occur when initial factory grease dries out or degrades over vehicle lifetime.

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