MOLYKOTE HP-670
Harmonization Code : 3403.19 | Lubricating Preparations (With 70% or More Petroleum Oils) For Automotive and Other Uses
Main features
- Low Operational Torque
- -65 to 250 deg C Range
- Fuel and Chemical Resistance
Product Description
MOLYKOTE HP-670 Grease is a white NLGI 2 fluorinated grease based on PFPE oil and PTFE for low-operational-torque mechanisms. It is used in automotive engine-control parts, electrical equipment and micro bearings, with compatibility for most rubbers and plastics. The service-temperature range is -65 to 250 deg C. It has 85 cSt base-oil viscosity at 40 deg C, 280 worked penetration and low starting and running torque at -20 and -40 deg C. Fuel and chemical resistance plus low evaporation support selection for demanding contact environments.
Key features
- Low operational torque: Shows controlled starting and running torque at the specified -20 and -40 deg C test conditions.
- -65 to 250 deg C range: Has this broad service-temperature range.
- Fuel and chemical resistance: Supports evaluation in demanding mechanisms exposed to the specified fuel and chemical environments.
Applications
Applications include automotive engine-control parts, electrical equipment, micro bearings and supported rubber or plastic contact components.
TDS, SDS & Technical Documents
Technical Specifications
General Properties
Additional Information
As-supplied / before-processing properties
Typical as-supplied values apply to the exact HP-670 grease before service exposure.
| Property | Value | Unit | Method / condition |
|---|---|---|---|
| Appearance | White | - | Typical; as supplied |
| Consistency | 2 | NLGI grade | Manufacturer product details |
| Base oil | PFPE | - | Manufacturer composition |
| Thickener / solid lubricant | PTFE | - | Manufacturer composition and product details |
| Base-oil viscosity | 85 | cSt | Manufacturer product page at 40 deg C |
| Worked penetration | 280 | 0.1 mm | JIS K 2220; 60 strokes |
| Density | 2.0 | g/cm^3 | JIS K 2220 |
| Usable life | 36 | months | Original unopened container at or below 40 deg C |
After-processing / final-state properties
In-service and bench-test values remain bounded by the stated temperatures, loads, speeds, durations and methods.
| Property | Value | Unit | Method / condition |
|---|---|---|---|
| Service-temperature range | -65 to 250 | deg C | Manufacturer-documented in-service range |
| Bleed | 7.0 | % | SAE AS8660; 24 hours at 200 deg C |
| Evaporation | 0.3 | % | SAE AS8660; 24 hours at 200 deg C |
| Four-ball wear scar | 0.90 | mm | ASTM D2266; 1,200 rpm, 392 N, 1 hour |
| Low-temperature torque | 32 starting / 18 running | mN-m | JIS K 2220 at -20 deg C |
| Low-temperature torque | 53 starting / 31 running | mN-m | JIS K 2220 at -40 deg C |
