Key Points
- Friction and heat can rapidly reduce the lifespan of plastic gears.
- The choice of lubricant directly affects the performance and reliability of the system.
- Molykote® PG-54 and Molykote® PG-65 are designed for plastic/plastic and plastic/metal applications.
- Extreme temperatures and high speeds require greases with very specific characteristics.
- Reducing wear and maintenance means improving continuity and production efficiency.
Plastic gear systems offer excellent, lightweight, and cost-effective solutions in numerous industrial sectors, but present certain challenges in terms of maintenance.
Friction, wear, and heat can quickly compromise the performance of plastic gear systems, causing deformation, cracking, or system failure.
The solution? Choosing the right lubricant for plastic gear systems.
High-performance solutions for demanding applications
Mascherpa offers two exceptional Molykote® greases specifically designed for plastic gear systems:
- Molykote® PG-54 Plastislip;
- Molykote® PG-65 Plastislip.
Molykote® PG-54 Plastislip
Molykote® PG-54 Plastislip is a specialty grease based on silicone oil designed for the long-term lubrication of metal/plastic, plastic/plastic, and reinforced rubber combinations:
- Extreme temperature range: operates from -50°C to +180°C (-58°F to 356°F).
- Ultra-low friction: friction coefficient of <0.04 on plastic surfaces.
- Exceptional low-temperature performance: maintains fluidity in extreme conditions.
- Excellent material compatibility: safe for most plastics and rubbers.
- Outstanding corrosion protection: SKF-EMCOR 0-1 rating.
- High oxidation resistance: longer life with low evaporation.
Molykote® PG-65 Plastislip
Molykote® PG-65 Plastislip is a synthetic grease based on hydrocarbons optimized for high-speed plastic/plastic, plastic/metal, and rubber applications:
- Designed for high-speed applications: excellent lubrication at high operating speeds.
- Wide temperature range: operates from -55°C to 130°C (-67°F to 266°F).
- Low friction coefficient: 0.05 on steel/plastic substrates.
- Excellent material compatibility: compatible with PET, HDPE, PTFE, nylon, PBT, NBR, PIB, polyurethane, and neoprene.
- PFAS-free formulation: no intentional addition of PTFE or PFAS.
- Superior wear protection: four-ball wear test result of 0.6 mm.
Advantages of greases for plastic gears
The use of specific greases for plastic gear systems allows for improved reliability, durability, and operational continuity even under severe conditions. Key benefits include:
- extended component life thanks to superior wear protection;
- reduction in downtime and maintenance costs;
- consistent performance across extreme temperature ranges;
- increased reliability in critical applications;
- improved operational efficiency and reduced friction.
Versatile applications of Molykote® lubricants
The Molykote® lubricant range is ideal for:
- bearing bushings,
- gears,
- chains,
- sealing rings,
- sliding guides,
- switches,
- levers,
- hinges,
- electric motors and gearboxes,
- automotive braking systems,
- automotive clutch systems.
For more information on the Molykote® lubricant range and to understand which may be best suited for your industrial application, contact the Mascherpa experts.


