MOLYKOTE EM-30L
Harmonization Code : 3403.19 | Lubricating Preparations (With 70% or More Petroleum Oils) For Automotive and Other Uses
Main features
- -45 to 150 deg C Service Range
- 3,730 N Four-Ball Weld Load
- 0.4% Evaporation at 99 deg C
Product Description
MOLYKOTE® EM-30L Grease is a white, NLGI 1 polyalphaolefin grease thickened with lithium soap and formulated with PTFE and other solid lubricants for plastic-component mechanisms. It is intended for plastic/plastic, plastic/metal, and metal/metal interfaces in automotive, electrical, precision, audio, and office equipment. The documented service range is -45°C to 150°C, with low-temperature torque measured at -40°C. Typical test data include a 3,730 N four-ball weld load, a 0.5 mm four-ball wear scar, 0.4% evaporation at 99°C for 22 hours, and 5.0% bleed at 100°C for 24 hours. The silicone-free formulation is relevant where silicone contamination is a concern; confirm compatibility with the exact polymer, elastomer, coating, and existing lubricant before use.
Key features
- Plastic-component grease system: NLGI 1 PAO grease with lithium-soap thickener, PTFE, and other solid lubricants.
- Documented service range: -45°C to 150°C for product-selection evaluation.
- Multiple contact pairings: Intended for plastic/plastic, plastic/metal, and metal/metal interfaces; confirm the exact material grade before use.
- Load and wear data: Typical 3,730 N ASTM D2596 four-ball weld load and 0.5 mm ASTM D2266 wear scar under the stated test conditions.
- Low-temperature torque data: Typical starting torque of 110 mN·m and running torque of 51 mN·m at -40°C.
- Cleanliness-oriented formulation: White, silicone-free grease with documented low evaporation and supplier-described low seepage.
Applications / Suitable for
- Automotive plastic parts and mechanisms
- Electrical appliances with plastic components
- Precision and audio equipment
- Office-equipment plastic assemblies
- Plastic-lubrication evaluation in gears, gearboxes, and pumps
TDS, SDS & Technical Documents
Technical Specifications
No specifications available.
Additional Information
MOLYKOTE® EM-30L Grease
A white, silicone-free NLGI 1 grease based on polyalphaolefin oil, lithium soap, PTFE, and other solid lubricants. It is used for plastic/plastic, plastic/metal, and metal/metal contacts in automotive, electrical, precision, audio, and office equipment where low-temperature operation and controlled lubricant migration are relevant selection factors.
MOLYKOTE® EM-30L is a white PAO grease developed for plastic-component lubrication.
As-supplied grease properties
| Property | Value | Unit | Method / condition |
|---|---|---|---|
| Appearance | White | — | As supplied |
| Base-oil viscosity | 90 | mm²/s | At 40°C |
| Worked penetration | 325 | 0.1 mm | JIS K 2220; 60 strokes |
| Consistency class | 1 | NLGI | Based on worked penetration |
| Density | 0.91 | g/cm³ | Typical value |
Typical values are not specification limits. Confirm current product data before establishing design or purchasing requirements.
Operating performance and test results
Use the documented operating range and condition-specific bench results as product-selection inputs. They do not establish universal equipment load capacity, wear life, material compatibility, or maintenance intervals.
| Property | Value | Unit | Method / condition |
|---|---|---|---|
| Service-temperature range | -45 to 150 | °C | Supplier-documented operating range |
| Drop point | 195 | °C | JIS K 2220 |
| Bleed | 5.0 | % | JIS K 2220; 100°C for 24 h |
| Evaporation | 0.4 | % | JIS K 2220; 99°C for 22 h |
| Oxidation resistance | 0.02 | MPa | JIS K 2220; 99°C for 100 h |
| Copper corrosion | 1A | rating | JIS K 2220; 100°C for 24 h |
| Four-ball weld load | 3,730 | N | ASTM D2596; 1,500 rpm for 1 min |
| Four-ball wear scar | 0.5 | mm | ASTM D2266; 1,200 rpm, 392 N, 1 h |
| Low-temperature starting torque | 110 | mN·m | JIS K 2220; -40°C |
| Low-temperature running torque | 51 | mN·m | JIS K 2220; -40°C |
Results are tied to the stated methods and conditions. Evaluate the grease in the intended component, material pairing, load, speed, temperature, and duty cycle before specification.
Prepare the interface and apply a controlled grease quantity
Application should match the component geometry and lubrication method. Material compatibility and lubricant-changeover conditions should be confirmed for the actual assembly.
Use clean application points and a controlled method suited to the component geometry.
Store unopened in a cool, dark place. Usable life is 36 months from the date of production. Keep the product in properly labeled containers, avoid strong oxidizing agents, and review the current safety data and container label before handling.
Plastic-component lubrication applications
The documented application scope includes automotive, electrical, precision, audio, and office equipment with plastic parts. Product fit remains specific to the polymer grade, contact pairing, component stress, speed, temperature, lubricant quantity, and contamination constraints.
Evaluate MOLYKOTE® EM-30L for your plastic-component mechanism
Krayden can help review polymer and elastomer grades, plastic-to-plastic or plastic-to-metal interfaces, operating temperature, starting torque, load and wear requirements, lubricant migration, existing-lubricant compatibility, application method, and production fill strategy.
