Optical grease affects image quality, operating feel and instrument life, rather than simply reducing friction. Microscopes, lenses, surveying instruments, spectrometers and lidar contain small threads, guides, gears, seals and adjustment wheels. Volatility, migration and oil mist from ordinary grease can contaminate coatings, haze images and cause focusing to stick. Optical grease must offer low volatility, low migration, material compatibility, stable damping, and resistance to mold and rust. SEIVIO products serve consumer optics, laboratories, surveying, semiconductor optoelectronics and aerospace remote sensing.
Focusing threads need uniform damping; sliding guides need low friction; rubber seals require compatibility; vacuum equipment needs very low outgassing; and gears need wear and noise control. One grease cannot serve every mechanism. Lovolub grades are formulated for these different friction pairs.
A principal grade for lenses and precision focusing components, M130 uses low-volatility synthetic oil and anti-migration additives to combine lubrication and damping. It provides even rotational feel, controlled stopping and reduced sticking, play and leakage. Applications include camera focusing and zoom threads, lens-barrel slides, stabilization mechanisms and miniature worm gears; microscope, telescope and endoscope focusing wheels, lifting screws and dovetail adjustments; security optoelectronic platforms, industrial optical inspection equipment and medical-endoscope focusing drives. It suits metal/plastic threads and PC, ABS and POM components without cracking or swelling, including volume assembly of consumer optical instruments.
Synthetic oil and a special soap thickener provide low evaporation, migration resistance, a -50~120°C range, limited consistency changes, mold resistance and compatibility with metals and various plastics. Applications include camera focusing rings, shutters and bearing-damping components; microscope and telescope eyepiece/objective adjustments and worm drives; moving parts in theodolites, levels, spectrometers, lidar and airborne surveying/remote-sensing instruments. It can also serve non-vacuum optical mechanisms in semiconductor exposure equipment. Suitable as a multi-position general-purpose optical grease, it should be applied thinly to create a continuous film without excess that could reach lenses.
Developed for optical rubber seals using a non-spreading base oil, A397 provides very low volatility and resists mist formation at high temperatures. It is compatible with EPDM, NBR and SBR, avoiding seal swelling, shrinkage and aging while providing water, dust and mold resistance. Applications include O-rings at lens-barrel connections in cameras, thermal imagers, laser rangefinders, microscopes, night-vision instruments and spectrometers, including rubber/rubber and metal/rubber pairs. Proper lubrication prevents dry seal wear and the entry of moisture and dust that can cause lens mold, while limiting contamination of the internal optical path.
Very low oil-mist release and enhanced mold resistance suit mechanisms in long-term sealed optical chambers, limiting volatile deposits and oil spots on lenses. Applications include enclosed optical modules, industrial camera drives, portable optical inspection instruments and field-use optics. Dedicated mold-inhibiting components help protect precision parts in humid outdoor environments with large temperature changes, extending life in surveying and security-monitoring optical equipment.
Semiconductor optics and vacuum-coating optical systems require lower outgassing than ordinary optical greases provide. Vaculub K209 combines high-purity PFPE oil and PTFE thickener, extremely low vapor pressure, a -50~250°C range and chemical inertness. It serves vacuum optical benches, vacuum spectrometers, lithography optical positioning stages, and precision chamber bearings and screws without attacking optical components. Vaculub P192 addresses multi-axis optical positioning mechanisms, offering aging resistance and long-term stability in vacuum optical inspection equipment while reducing volatile contamination risks.
Remove old grease and particles using a cleaning agent such as isopropyl alcohol. Apply only a thin, continuous film: excessive grease can migrate to lenses as temperature changes. After assembly, operate the mechanism back and forth to distribute the grease, then wipe away excess to prevent dust collection, sludge formation and changes in operating feel.
Use M130 for focusing threads and adjustment wheels; 5633 for general lubrication in microscopes and surveying instruments; A397 for lens-barrel rubber O-rings; 5112 for sealed chambers and humid outdoor use; and PFPE Vaculub grades for vacuum semiconductor optics. The SEIVIO range addresses lubrication, damping, oil-mist control and compatibility across consumer, laboratory, surveying, semiconductor and aerospace optical equipment, offering domestic alternatives to imported optical greases.