Summit Oilfield Lubricants & Sealants
Master Wireline Seal
MWS 28W — Wireline Lube & Seal

Product Information
Master Wireline Seal MWS 28W provides better seal retention and is recommended for operations where different pressures exist. In addition to maintaining and holding higher seal pressures, Master Wireline Seal will reduce the friction of the wireline, thus minimizing wear on wireline and flow tubes. Master Wireline Seal will retain higher working pressures which will reduce the loss of condensate, fluids, or gas from the well.
Master Wireline Seal is most effective under high shock conditions for the reduction of drip and splatter. The special cohesive and adhesive properties prevent wellsite contamination. Master Wireline Seal provides protection against hydrogen sulfide (H₂S) as well as corrosive effects of acids, caustics, and salt water. This product is available in weight of 5 gal - 19 L and 55 gal - 208 L.
- Contains corrosion inhibitors
- Effective wireline lubrication
- Provides better seal retention
- Maintains and holds higher seal pressure
- Reduces loss of condensate, fluids, or gas from well
- Reduces drip and splatter
- Prevents wellsite contamination
- Protects against hydrogen sulfide (H₂S)
Typical Observations
| Viscosity | 28 |
| Classification | Wireline Lubricant and Sealant |
| Color | Golden Yellow |
| Density, lb/gal @ 77°F (25°C) | 7.21 |
| Viscosity, cSt @ 40°C | 13,500-14,400 |
| Viscosity, cps @ 77°F (25°C) | 33,000-35,000 |
| Specific Gravity @ 77°F (25°C) | 0.871 |
| Flash Point, ASTM D-93 | 390°F (198°C) |
| Rust-Preventive Test, ASTM D-3603 @ 140°F (60°C) | Pass |
