The structure of pastes corresponds in principle to that of greases. However, the share of solid lubricants is clearly higher. Thus a reliable lubricating, parting and corrosion protection effect is ensured even when used under extreme temperature and pressure conditions and aggressive media. Pastes are used at screw threaded connections as well as for pressing in pins and bolts, at gearwheels, chucks, hinges and plain bearings.
| Characteristic | Standard | Description |
| Press-fit test | Provides information about the lubricating effect of pastes at very high pressure and low sliding speed (relevant for assembly pastes) | |
| Thread friction coefficient | DIN 946 | The friction coefficient μ when screws and nuts are tightened is determined on a screw test bench (relevant for screw pastes) |
| Breakaway torque | DIN 267-27 | Ratio of the required breakaway torque when loosening the screwed connection to the tightening torque |
| Operating temperature | Lubrication: Oil and solid lubricants are effective Separation: After the oil has evaporated, separating effect through solid lubricants |
The structure of high-performance pastes is similar to that of greases. The main difference is the high portion of solid component that is typical of both assembly pastes (lubrication effect only) as well as for screw pastes (lubrication and separation effect).
The field of application of pastes is determined to a great extent by the solid lubricant contained.
| Solid lubricant | Maximum operating temperature [°C] | Field of application |
| PTFE | < 300 | Mounting, medium influence |
| MoS2 | < 450 | Montage, press-on processes |
| Aluminium | < 1100 | High-temperature screwed connections |
| Copper | < 1100 | High-temperature screwed connections, "anti-seize" paste, electrical conductivity |
| “Oxide” ceramics | < 1400 | Extreme-temperature screwed connections, stainless steel screwed connections |
Understanding norms, coherences and process operations with the help of the glossary. Everything from A - Z.
