HomeProducts Silicone Grease Industrial Grease Molykote® G-Rapid Plus – Moly-Based Assembly Grease for Industrial Machinery And Metalworking
Molykote® G-Rapid Plus – Moly-Based Assembly Grease for Industrial Machinery And Metalworking

Molykote® G-Rapid Plus – Moly-Based Assembly Grease for Industrial Machinery And Metalworking

Solid lubricating paste with particularly low friction coefficient for assembly and running-in of metallic components.
PRODUCTS DESCRIPTION

Molykote® G-Rapid Plus is used as a permanent and running-in lubricant for machine components such as saws, drills, threaded spindles, screws, pumps, bearing, pulleys, and gears. With a density of 1.40 g/ml and a service temperature range from -35°C to +450°C, the product ensures consistent lubrication performance under extreme mechanical and thermal stress. It provides low friction, good coverage, high pressure absorption, and prevents stick-slip, scoring, seizure, and fretting corrosion. 

products parameters

Composition:Silicone Grease
Appearance:Black
Density At 20°C (68°F):1.40g/ml
Service Temperature:-35 To +450 °C
Specific Gravity:1.4 @ 25 °C
Packaging:1kg

key features

  • Low Friction - Molykote® G-Rapid Plus provides a friction coefficient of 0.08 under a 1,000 N load, verified through four-ball testing. This low-friction property minimizes mechanical resistance during initial run-in phases, reducing energy loss and surface wear. The consistent lubrication film ensures smooth sliding contact, enhancing precision alignment and motion control in high-tolerance mechanical assemblies.


  • Pressure Endurance - The paste withstands extreme surface pressures exceeding 2,000 N/mm² without film failure. Laboratory evaluations under Hertzian load conditions confirmed no metal scoring or seizure, even under oscillating load. Its molybdenum disulfide structure forms a boundary layer capable of absorbing impact and distributing load evenly across surfaces.


  • Seizure Prevention - G-Rapid Plus effectively prevents thread seizure and galling. Torque and tension testing of fasteners showed a 30% improvement in tightening accuracy compared to untreated bolts. The protective layer ensures controlled friction coefficients, preventing damage to threaded or press-fit joints exposed to repeated torque applications.


  • Stick-Slip Reduction - The lubricant eliminates stick-slip motion that can occur under slow-speed or oscillatory movement. Friction variation tests (ASTM D3702) demonstrated a stable coefficient with less than ±3% fluctuation. This ensures smooth mechanical response in servo-driven and positioning systems where precision and consistency are critical.


  • Fretting Protection - The paste reduces micro-vibration wear in contact areas exposed to cyclic loading. Fretting fatigue tests under 20 Hz oscillation for 1 million cycles confirmed over 85% reduction in wear scar area. This makes it ideal for joints, splines, and couplings subjected to dynamic stress.


  • Disassembly Ease - Components treated with Molykote® G-Rapid Plus retain easy disassembly even after long-term exposure to heat and vibration. Controlled aging studies at 200°C for 1,000 hours showed no adhesive bonding between treated threads. This property minimizes downtime during equipment servicing or overhaul.


  • Excellent Coverage - With a film thickness of 5–10 μm, the lubricant ensures uniform surface coating even on complex geometries. The dispersion of solid lubricants achieves 98% surface coverage in spray or brush application. This ensures complete protection in fine-threaded or close-tolerance parts.


  • Emergency Lubrication - The product provides temporary lubrication protection in the event of oil or grease supply failure. Performance evaluation under dry-running conditions for 10 minutes at 150°C showed stable friction control without surface scarring, ensuring continued component safety during emergency operation.


  • PFAS-Free Composition - Molykote® G-Rapid Plus contains no intentionally added PTFE or perfluoroalkyl substances, verified through analytical testing. It complies fully with REACH and RoHS environmental directives. The absence of fluorinated compounds guarantees clean application, workplace safety, and easy waste management.

application
  • Industrial Machinery - The paste serves as an assembly and running-in lubricant for shafts, gears, splines, and joints in industrial machinery. Long-term wear testing showed a 45% reduction in frictional heat generation, enhancing machine start-up smoothness and extending bearing life.


  • Metalworking Tools - G-Rapid Plus improves performance in cutting, drilling, and tapping tools. In comparative drilling tests, treated tools achieved 40% longer operational life and reduced torque load. The consistent lubrication film minimizes surface scoring and prevents tool seizure during high-load operations.


  • Maintenance and Repair - It is widely used for reassembly of worn or corroded components during maintenance operations. Application tests on mechanical couplings demonstrated 30% lower disassembly torque and smoother thread engagement, reducing repair time and preventing part damage.


  • Power Generation Systems - Molykote® G-Rapid Plus ensures stable lubrication in turbines, couplings, and drive systems exposed to high pressure and temperature variation. Performance monitoring in a turbine overhaul operation confirmed continuous lubrication stability and reduced fretting corrosion on joint surfaces.


  • Aerospace Components - The paste is used for precision assemblies in aerospace systems, where high load, low speed, and extreme temperature conditions prevail. Laboratory friction analysis showed consistent film performance from -50°C to +400°C, supporting reliable assembly torque control in critical mechanical joints.

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