MOLYKOTE 5
Harmonization Code : 3403.19 | Lubricating Preparations (With 70% or More Petroleum Oils) For Automotive and Other Uses
Main features
- Nonconductive, Water-Repellent Silicone Paste
- 54 to 232 deg C Service Range
- Metal and Plastic Compatibility
Product Description
MOLYKOTE® 5 Compound is a nonconductive, water-repellent silicone paste engineered primarily for use as a dielectric compound on insulators, bushings, and high-current switches. Formulated with an inert amorphous silica filler and selected dimethyl and phenylmethyl silicone fluids, it provides improved metal-to-metal lubricity compared to standard silicone compounds. This virtually inert and nonvolatile grease-like material effectively prevents the formation of conductive paths, arcing, and flashovers on high-voltage equipment while resisting oxidation and moisture.
Key features
- Broad operating range: Delivers a serviceable temperature range of -54 to 232°C (-65 to 450°F), representing a significant improvement over traditional silicone compounds.
- Excellent material compatibility: Highly compatible with rubber, metal, and plastic components, making it ideal for lubricating static and dynamic O-ring seals.
- Clean and compliant: Formulated without intentional polytetrafluoroethylene (PTFE) or per- and polyfluoroalkyl substances (PFAS).
Applications / Suitable for
- Preventing arcing and flashovers on insulators, bushings, and high-voltage equipment contacts
- Lubricating static and dynamic O-ring seals in hot-melt adhesive equipment
- Water-repellent filling material for service entrance cable jackets
- Preventing rust, oxidation, and corrosion on insulator threads, bolts, and watt-hour meter contacts
TDS, SDS & Technical Documents
Technical Specifications
No specifications available.
Additional Information
As-supplied / before-processing properties
Typical properties; these values are not intended for use in preparing specifications.
| Property | Value | Unit | Method / condition |
|---|---|---|---|
| Chemical Composition | Dimethyl and phenylmethyl silicone fluids, amorphous silica filler | - | Silicone paste |
| Physical State / Appearance | Light gray to translucent white | - | Grease |
| Unworked Penetration | 170-230 | mm/10 | ASTM D217 |
| Relative Density | 1 | - | Water = 1 |
| Flash Point | > 101.1 | °C | Closed cup (> 214.0 °F) |
| Shelf Life | 60 | months | From date of manufacture |
After-processing / in-service properties
Typical properties; these values are not intended for use in preparing specifications.
| Property | Value | Unit | Method / condition |
|---|---|---|---|
| Service Temperature Range | -54 to 232 | °C | (-65 to 450 °F) |
| Worked Penetration | 228 | mm/10 | Worked 60 strokes, 1/2 scale (ASTM D1403) |
| Bleed | 0.4 | % | 30 hours at 204°C (399°F) (AMS8660) |
| Evaporation | 1.2 | % | 30 hours at 204°C (399°F) (AMS8660) |
| Volume Change Rubber | -0.6 | % | SRE-NBR-28/PX (ASTM D471, AMS8660) |
| Durometer Hardness Change | +2 | - | Delta (80 Shore A) (ASTM D2240) |
| Low Temp Torque (Starting) | 2087 | gm-cm | at -54°C (-65°F) (ASTM D1478) |
| Low Temp Torque (Running) | 313 | gm-cm | at -54°C (-65°F), 60 minutes (ASTM D1478) |
| Dielectric Strength | 321 | volts/mil | 50 mil gap (ASTM D149, AMS8660) |
| Volume Resistivity | 1.61x10^14 | ohm-cm | at 23°C 500VDC (ASTM D257, AMS8660) |
| Volume Resistivity | 1.51x10^14 | ohm-cm | at 177°C 500VDC (ASTM D257, AMS8660) |
| Arc Resistance | 124 | seconds | mean (ASTM D495, AMS8660) |
| Dielectric Constant | 2.77 / 2.91 / 2.76 | - | at 1 kHz / 1 MHz / 10 MHz (ASTM D150, AMS8660) |
| Dissipation Factor | 0.0004 / 0.0017 / 0.0026 | - | at 1 kHz / 1 MHz / 10 MHz (ASTM D150, AMS8660) |
| Thermal Conductivity | 0.238 | W/mK | at 30°C (ASTM D5470) |
| Specific Heat | 1.385 / 1.502 / 1.541 | J/(g°C) | at 50°C / 100°C / 150°C (ASTM E2716) |
