MOLYKOTE HP-300
Harmonization Code : 3403.19 | Lubricating Preparations (With 70% or More Petroleum Oils) For Automotive and Other Uses
Main features
- Fully Fluorinated PFPE/PTFE Lubrication
- 65 to 250 deg C Service Range
- 3,300 N Four-Ball Weld Load
Product Description
MOLYKOTE® HP-300 Grease is a white, fully fluorinated lubricating grease based on perfluoropolyether oil with a PTFE thickener and PTFE solid lubricants. The NLGI Grade 2 formulation provides lubrication across a service-temperature range of −65°C to 250°C and resists chemicals, solvents, oxidation, and high-temperature exposure. It is suitable for harsh environments including corrosive service, liquefied natural gas, high vacuum, cleanroom equipment, and semiconductor manufacturing equipment where low lubricant volatilization is important. :contentReference[oaicite:0]{index=0}
Key features
- Fully fluorinated formulation: Uses PFPE base oil with a PTFE thickener and PTFE solid lubricants.
- Wide service-temperature range: Supports lubrication from −65°C to 250°C.
- Chemical and solvent resistance: Formulated for harsh and chemically aggressive operating environments.
- Low-volatility base oil: Provides a base-oil vapor pressure of 4 × 10−10 Pa at 20°C.
- High-temperature stability: Shows 0.2% evaporation after 24 hours at 200°C under MIL-S-8660 testing.
- Plastic compatibility: Compatible with most plastics.
Applications / Suitable for
- Cleanroom and semiconductor manufacturing equipment
- High-vacuum and low-volatilization applications
- Corrosive and solvent-exposed equipment
- Liquefied-natural-gas service
- Rolling-element bearings, valves, packings, seals, and O-rings
- Plastic, rubber, and elastomer lubrication
TDS, SDS & Technical Documents
Technical Specifications
General Properties
Thermal Properties
Additional Information
As-supplied / before-processing properties
Typical as-supplied characteristics and storage information for MOLYKOTE® HP-300 Grease. Values are not intended as specification limits. :contentReference[oaicite:1]{index=1}
| Property | Value | Unit | Method / condition |
|---|---|---|---|
| Technology | Perfluoropolyether | — | PFPE-based grease |
| Thickener | PTFE | — | Fluorinated-polymer thickener |
| Solid lubricant | PTFE | — | Supplier-listed composition |
| Appearance | White | — | Typical property |
| NLGI grade | 2 | — | Consistency classification |
| Worked penetration, 60 strokes | 280 | 0.1 mm | JIS K 2220 |
| Base-oil viscosity | 160 | cSt | At 40°C |
| Density | 2.0 | g/cm³ | Typical property |
| Usable life | 36 | months | Unopened and stored in a cool, dark place |
After-application / in-service properties
Typical performance characteristics relevant to the applied lubricant. Results apply only to the stated test methods and conditions. :contentReference[oaicite:2]{index=2}
| Property | Value | Unit | Method / condition |
|---|---|---|---|
| Service-temperature range | −65 to 250 | °C | Supplier-listed service range |
| Bleed | 8.0 | % | MIL-S-8660; 200°C for 24 hours |
| Evaporation | 0.2 | % | MIL-S-8660; 200°C for 24 hours |
| Extended evaporation | 1.0 | % | MIL-S-8660; 200°C for 1,000 hours |
| Four-ball weld load | 3,300 | N | ASTM D2596; 1,500 rpm for 1 minute |
| Four-ball wear scar | 1.1 | mm | ASTM D2266; 1,200 rpm, 392 N, 1 hour |
| Low-temperature torque | 11 starting / 3.6 running | N·cm | JIS K 2220 at −40°C |
| Base-oil vapor pressure | 4 × 10−10 | Pa | At 20°C |
