Description
O-Ring Lubricant – MOLYKOTE® 111 Compound
DuPont MOLYKOTE® 111 Compound is a high-performance, one-component silicone lubricant specifically designed for sealing, lubricating, and protecting elastomeric components such as O-rings and gaskets. It offers excellent water resistance, low volatility, and a wide service temperature range, making it ideal for use in subsea and pressurized environments.
This compound is fully compatible and recommended for use with all Blu-Sub product O-rings. When applied during assembly or maintenance, it helps maintain watertight integrity, prevents sticking, and extends the lifespan of seals by reducing wear and deformation.
Commonly used in outdoor equipment, electrical insulators, and pressure systems, MOLYKOTE® 111 is known for its stability under extreme conditions and resistance to water washout. It is available in two packaging formats to suit different needs:
- 6 g single-use packet
- 100 g service tube
For full handling, application, and safety instructions, please refer to the official DuPont Technical Datasheet and DuPont Safety Data Sheet.
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Technical Specifications
O-Ring Lubricant – MOLYKOTE® 111 Compound
Compatible and recommended for all Blu-Sub product O-rings. Available in 6 g packets or 100 g tubes.
| Typical Use | Lubrication for control and pressure plug valves, water softener and faucet valves, sealant for vacuum and pressure systems, chemical barrier coating, rubber and plastic O-rings, gaskets and seals |
| Brand | MOLYKOTE |
| Components | 1 part |
| Dielectric Strength | >450 V/mil |
| Flash Point | >101.1 °C |
| Service Temperature | –57 to 204 °C |
| Specific Gravity | 1.1 |
| Spray | No |
| Volume Resistivity | 2.17 × 1015 ohm-cm |
Is this lubricant compatible with all Blu-Sub O-rings?
Yes, MOLYKOTE® 111 Compound is fully compatible and recommended for use with all Blu-Sub product O-rings.
What are the packaging options?
It is available in 6 g single-use packets or 100 g service tubes for flexible application needs.
What does it do?
It seals, lubricates, and protects O-rings, helping reduce wear, prevent sticking, and maintain watertight integrity under pressure.
Can it be used in underwater or high-pressure environments?
Yes, it is water-resistant and performs reliably in submerged and high-pressure applications.
Is it safe to use with different types of elastomers?
Yes, according to the DuPont datasheet, MOLYKOTE® 111 is compatible with many rubber and plastic materials. Always verify compatibility if using non-standard materials.
