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MOLYKOTE® D-321 R Anti-Friction Coating

MOLYKOTE® D-321 R Spray is an easy-to-apply, aerosolized, solvent-based, air-cured dry film lubricant for metal-on-metal surfaces under heavy load and slow speeds.

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Documents

SDS
TDS
Product Line
MOLYKOTE® Anti-Friction Coatings
Industries
Application High Temperature Low Temperature Market Performance Benefit Product Chemistry Product Type Solid Lubricant
Authorized Countries
Germany United States France

Product Overview

MOLYKOTE® D-321 R anti-friction coating spray is an easy-to-use, air-cured dry film lubricant engineered for metal-on-metal interfaces in heavily loaded equipment with low to medium speeds. It is formulated with solid molybdenum disulfide and graphite to provide excellent resistance against stick-slipping and aging in an easy-application aerosol can.

MOLYKOTE® D-321 R Spray also meets or exceeds the strict performance requirements set out in the following specifications:
•    General Electric: A50TF7: S9, Class C
•    Pratt & Whitney: PWA 36240: L
•    Pratt & Whitney: PWA 300: BP


Applications

Prior to applying MOLYKOTE® D-321 R anti-friction coating spray, the surface should be cleaned and degreased or subjected to pretreatment phosphating or sandblasting to increase surface adhesion performance. It should be thoroughly shaken to ensure proper dispersion before spraying. MOLYKOTE® D-321 R should be sprayed to a recommended thickness between 5 and 20 µm.

MOLYKOTE® D-321 R is cured at 23°C in as few as five minutes. Cure time can be reduced to one minute when exposed to hot air at 80°C.

MOLYKOTE® D-321 R anti-friction coating spray is an easy-to-use, multipurpose solution for a broad range of lubrication applications, including the following:

Sliding guides and glide ways
Lubrication under high vacuum
Cylinder-head bolts
High-voltage switches
Gear wheels
Extreme-temperature equipment
Toaster guides
Car mirror adjustment motors
High-voltage electrical switches
Threaded connections and assembly
Wind turbine shrink discs
High-stress gear wheels
Metal-on-metal components
Running-in process or assembly
 

Features & Benefits

Rapid air-curing performance
Excellent stick-slip resistance
High aging resistance
Surface protection under high loads
Robust operating stability in extreme temperatures (−180°C to 450°C)

Problems Solved

Difficult-to-apply lubricants for hard-to-reach mechanical components
Required high-energy secondary curing phase
Ineffective dry film lubricant coverage or performance
Poor aging performance for dry film lubricant

Product Specifications

Solid lubricant:  Molybdenum disulfide (MoS2), graphite
Cure temperature: 20°C (68°F)
Low temperature: −180°C (−292°F)
Hight temperature: 450°C (842°F)
Color: Gray-black
Density at 23°C: 1.07 g/mL
Nonvolatile content: 29%
 

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