MOLYKOTE D-321 R Anti-Friction Coating
MOLYKOTE D-321 R Anti-Friction Coating is an air-curing dry-film lubricant for metal-on-metal applications under high loads and slow to medium speeds. MOLYKOTE D-321 R is a dry-film lubricant available in bulk liquid or aerosol spray forms, designed for metal-to-metal contact situations, particularly those involving slow to moderately fast movement and substantial loads. It's effective in improving the running-in process and providing lubrication for various components such as plain bearings, bushings, sleeves, power screw drives, threaded connections, fasteners, and high-voltage switches, even under extreme operating conditions. Application involves thorough stirring/shaking before application by brushing, spraying, or aerosol application, preceded by cleaning and degreasing of the surface for optimal adhesion. Surface treatments like phosphatization or sandblasting (180 grit) can further improve adhesion and extend service life.
The coating achieves a touch-dry state within 5 minutes at 23 C, a process that can be accelerated to 1 minute using 80 C hot air. Complete curing is reached after 2 hours at 23 C. A recommended dry-film thickness of 5 to 20 µm should be maintained.
Key Features:
- Air-curing dry-film lubricant
- Available in bulk liquid and aerosol spray forms
- Suitable for high loads and slow to medium speeds
- Improves running-in processes
- Wide service temperature range (-180 C to 450 C)
- 5-20 µm recommended dry film thickness
Typical Applications:
- Plain bearings
- Bushings
- Sleeves
- Power screw drives
- Threaded connections
- Fasteners
- High-voltage switches
Product Key Properties:
An air cured anti-friction coating filled with molybdenum disulfide and graphite
Product Performance Benefits:
- Air drying
- Avoidance of stick-slip
- High aging resistance
- High load carrying capability
- High temperature performance
- Low speed performance
- Low temperature performance
- Wide temperature range
- No intentional polytetrafluoroethylene (PTFE) or per- and polyfluoroalkyl substances (PFAS)