MOLYKOTE 3451 Chemical Resistant Bearing Grease
Harmonization Code : 2710199990 |
Main features
- Fluorosilicone Grease Formulation
- 40 to 450 deg F Service Range
- 340 kg Four-Ball Weld Load
Product Description
MOLYKOTE® 3451 Chemical Resistant Bearing Grease is an NLGI Grade 2 fluorosilicone grease formulated with fluorosilicone oil and fluorinated polymer thickeners for anti-friction bearing lubrication. It combines resistance to many chemicals, fuels, oils, solvents, low-pressure steam, and condensate with load-carrying performance across varying bearing speeds and loads. The grease has an estimated service temperature range of -40 to 450°F (-40 to 232°C) and a maximum estimated Dn value of 200,000. It is intended for bearings and processing equipment operating under demanding chemical, temperature, speed, or load conditions.
Key features
- Chemical-resistant fluorosilicone formulation: Resists deterioration and washout from many solvents, acids, chlorides, fuels, oils, water, low-pressure steam, and condensate.
- Wide estimated service temperature range: Supports bearing lubrication from -40 to 450°F (-40 to 232°C), depending on the application environment.
- Load- and speed-capable bearing grease: Provides a typical ASTM D2596 4-ball weld load of 340 kg and a maximum estimated Dn value of 200,000.
Applications / Suitable for
- Chemical mixers and pumps
- Needle bearings in circuit breakers
- Processing equipment
- Fuel- and solvent-handling equipment
- Sealed-for-life bearings operating at high speeds, heavy loads, or high and low temperatures
Technical Specifications
General Properties
Additional Information
As-supplied / before-processing properties
Typical values are provided for product evaluation and are not intended as specification limits.
| Property | Value | Unit | Method / condition |
|---|---|---|---|
| NLGI consistency | 2 | Grade | Typical |
| Color | White | — | Typical |
| Thickener | Fluorinated polymers | — | Typical formulation |
| Worked penetration | 279 | 0.1 mm | ASTM D217, 60 strokes |
| Fluorosilicone oil viscosity | 2295 | SUS | At 100°F (38°C) |
| Specific gravity | 1.44 | — | At 77°F (25°C) |
After-processing / final-state properties
Typical in-use and laboratory performance values are provided for product evaluation and are not intended as specification limits.
| Property | Value | Unit | Method / condition |
|---|---|---|---|
| Estimated service temperature range | -40 to 450 (-40 to 232) | °F (°C) | Based on formulation and laboratory testing; actual range depends on the application environment |
| Maximum Dn value | 200,000 | mm × rpm | Estimated; bearing shaft diameter in mm × rotational speed |
| Bleed | 4.5 | % | CTM0033A, 24 hours at 392°F (200°C) |
| Evaporation | 3.8 | % | ASTM D2265, 24 hours at 392°F (200°C) |
| Dropping point | >536 (>280) | °F (°C) | Typical |
| Water washout | <0.3 | % | ASTM D1264, 1 hour at 175°F (80°C) |
| 4-ball weld load | 340 | kg | ASTM D2596 |
