MOLYKOTE D-10-GBL is a heat-cured, solvent-based dry film anti-friction coating designed for metal-to-metal contacts operating under high load, boundary lubrication, and mixed friction conditions. It uses graphite solid lubricants dispersed in an organic binder to create a durable, permanently bonded lubricating film after curing. Compared with conventional oils or greases, MOLYKOTE D-10-GBL Anti-Friction Coating delivers stable lubrication in environments exposed to fuels, solvents, and elevated temperatures, making it suitable for components where liquid lubricants are ineffective or undesirable. It is highly viscous and can be applied via screen printing, spraying, or brushing, followed by a heat cure to form a durable, dry film resistant to high temperatures (up to 340°C in the absence of oxygen).

• Wide Temperature Stability - The cured dry film remains mechanically and chemically stable across a continuous service temperature range from -40°C up to 340°C, allowing consistent friction control during cold start, steady-state operation, and sustained high-temperature exposure. Unlike conventional oils that thin at elevated temperatures or stiffen at low temperatures, the graphite-based solid lubricant structure maintains load-bearing capability and surface separation throughout thermal cycling, making it suitable for combustion-related components exposed to repeated heat fluctuations.

  
  

• Fuel And Solvent Resistance - MOLYKOTE D-10-GBL demonstrates strong resistance to prolonged contact with gasoline, diesel fuel, lubricating oils, and common industrial solvents, maintaining lubricating effectiveness even after repeated exposure cycles. Laboratory immersion and contact tests show no significant loss of film integrity or friction-reducing performance, which allows the dry film to function reliably in environments where liquid lubricants are diluted, washed away, or chemically degraded by fuels and cleaning agents.

  
  

• High Load Support - The graphite solid lubricant system is designed for boundary and mixed friction regimes, enabling the coating to withstand high surface pressures typical of heavily loaded sliding contacts. This allows reliable operation under conditions where hydrodynamic oil films cannot be sustained, such as slow-moving, high-contact-pressure interfaces. The cured film reduces direct metal-to-metal contact, stabilizes friction behavior under load, and supports consistent performance during both break-in and long-term operation.

  
  

• Controlled Film Formation - With a base oil viscosity of approximately 35,000 mPa·s at 23°C, the formulation supports controlled application by screen printing, spraying, or brushing while minimizing run-off on complex geometries. This viscosity level enables uniform film build-up and repeatable thickness control across production batches, supporting consistent friction and wear behavior on precision components where dimensional stability and coating uniformity are critical to performance.

  
  

• Thermal Cure Durability - After heat curing at 200°C for 20 minutes, the coating forms a dense, adherent dry film that resists mechanical wear and shear forces during cyclic and continuous sliding. The cured structure provides long-term surface protection by reducing adhesive wear and stabilizing friction coefficients over extended operating periods, helping extend component service life and reduce maintenance frequency in applications where re-lubrication is impractical or undesirable.

• Automotive Pistons - In internal combustion engines, MOLYKOTE D-10-GBL is applied as a dry film on piston skirts and cylinder contact areas to reduce friction during cold start and initial break-in. The coating remains stable from -40°C to 340°C, allowing controlled sliding under boundary lubrication conditions where oil films are insufficient, helping reduce scuffing, stabilize wear patterns, and improve long-term piston and cylinder surface consistency.

  
  

• Piston Pumps Systems - In pneumatic and hydraulic piston pumps, the MOLYKOTE® D-10-GBL Anti-Friction Coating is applied to sliding metal interfaces that experience intermittent motion and high contact pressure. After curing at 200°C for 20 minutes, the dry film provides long-lasting lubrication without oil migration, supporting smooth piston movement, reducing start-stop wear, and maintaining performance even when exposed to fuels, hydraulic fluids, or cleaning solvents during service cycles.

  
  

• Metal Sliding Pairs - For heavily loaded metal-to-metal friction pairs operating at low speed or mixed lubrication conditions, the coating is applied by spraying or brushing to ensure uniform surface coverage. With a typical coverage of around 15 m² per kg, it allows predictable material consumption and consistent film thickness, helping stabilize friction behavior and reduce adhesive wear where liquid lubricants cannot remain in place.

  
  

• Inaccessible Components - MOLYKOTE D-10-GBL is used on components that are difficult or impossible to re-lubricate after assembly, such as enclosed sliding interfaces or sealed mechanical systems. The cured dry film delivers long-term lubrication without oil bleed or evaporation, reducing maintenance requirements and ensuring stable friction control throughout the service life of components operating under cyclic or continuous load.

  
  

• Fuel-Exposed Parts - The coating is specifically applied to components in direct contact with gasoline, diesel fuel, or lubricating oils, where conventional greases may dissolve or wash away. Its chemical resistance allows it to maintain lubricating performance after repeated fuel exposure, supporting reliable operation in engine and fuel-handling systems while reducing wear caused by diluted or degraded liquid lubricants.