MOLYKOTE® Cu-7439 Plus Paste is a copper paste for components subjected to high temperatures, high pressures and corrosive influences. It contains powdered copper, partly synthetic oil and an inhibitor. It offers good pressure resistance, is very adhesive and resistant to water washout, protects against corrosion, has low evaporation and no drop point. It is used where protection against water, steam and corrosion is needed, such as brake mechanisms, flange seals and exhaust bolts.
Typical Properties
- Copper coloured; unworked penetration 320–370 mm/10; density (20 °C) 1.0 g/ml; base oil viscosity (40 °C) 1100 mm²/s
- Service temperature −30 to 650 °C; as a paste effective up to 300 °C; no drop point
- Four-ball weld load 2500 N; wear scar 1.0 mm; Almen-Wieland OK load above 20,000 N
- Coefficient of friction in press-fit test 0.07; M12 bolt thread 0.17, head 0.10
- Breakaway torque after 21 hours at 300 °C 110 N·m; SKF-Emcor corrosion degree 0
Use and Storage
- Clean the contact surfaces if possible; apply with a brush or cloth, excess need not be removed; can be used in grease guns and centralized lubrication systems
- 60 months from production at or below 20 °C in the original unopened containers
| Technical Data | |
|---|---|
| Working Temperature | -30 - 650 °C |
| Chemical Composition | Copper |
| Storing Temperature | Room temperature |
| Applicable Surfaces | Disc brakes, brake cams, brake guides, flange gaskets, adjusting screws and threaded connections; vehicle assembly and maintenance |
| Key Properties | Excellent adhesion to metal surfaces; wide temperature range (-30 to 650°C); good load-carrying capacity; reduces friction and wear; excellent protection against fretting and high-temperature corrosion; helps prevent brake squeal on disc brakes; allows easy disassembly of components even after long service intervals |
| NLGI Consistency Grade | 0 - 1 |
| General | |
| Packing | 1 KG |
| Color | Copper |