Brightwork Polish at Brescia Montichiari (LIPO)

Why does brightwork lose its shine between regular washes?

Bare aluminium and stainless steel are left unpainted because they save weight and look striking when polished, but both oxidise the moment they meet air. Even after a thorough exterior wash, leading edges and inlet rings begin to dull within weeks as a microscopic layer of oxide forms on the surface. Exhaust staining—carbon residue baked onto the metal—adds another layer of discolouration that soap and water cannot lift.

Polishing removes that oxide and carbon mechanically, working through progressively finer grades of compound until the metal reflects light cleanly. We then apply a sealant that fills the microscopic pores in the aluminium, slowing the rate at which oxygen and moisture can reach the surface. The result lasts two to four months depending on how often the aircraft flies and where it operates; high-humidity coastal environments and frequent thermal cycling shorten the interval, while dry continental routes extend it.

Most operators schedule brightwork polish two to four times a year, or bundle it with a complete detail so that paint correction and metal polishing happen in a single visit. Either way, the work is done by hand at the stand—no hangar required—so it fits neatly into a layover or a positioning day at Brescia.

What changes at Brescia Montichiari?

Brescia Montichiari has a single runway—14/32, 2,990 metres long—with displaced thresholds on both ends and an elevation of 356 feet, so performance is never a constraint for business jets. Tower works 119.40 and 122.10. The airport is primarily a cargo hub: DHL and Poste Air Cargo freighters operate every night, which means the field is active around the clock and apron space competes with night freight movements. Handling agents present at the airport coordinate stand allocation, and advance notice—ideally forty-eight hours—helps secure a position that does not interfere with cargo schedules.

Because the airport runs continuously, there is no curfew to plan around, and GPU or external air is typically available through the handler. We arrive airside with an escort if required, set up at the stand and begin polishing once the aircraft is cold-soaked and the tech log is signed off. The shared apron means other aircraft and ground equipment will be moving nearby, so we position our kit to keep leading edges and inlets accessible without blocking taxiways or service roads.

Brescia sits in the Po Valley, where summer heat and winter fog are both common. High temperatures soften sealant and accelerate oxidation on sun-facing surfaces; winter moisture—especially when the aircraft has been cold-soaked overnight—can leave a haze on polished metal if it is not dried promptly. We adjust compound selection and sealant cure times to match ambient conditions, and we keep leading edges covered between polishing passes if rain or dew is forecast.

Which surfaces are included in a brightwork polish?

We polish every bare-metal surface that is accessible without removing panels or climbing onto control surfaces. Wing and horizontal-stabiliser leading edges are the largest area and usually show the most oxidation, so they receive the most attention. Engine inlet rings and spinners are next: these parts see high airflow and temperature swings, and carbon staining from combustion residue is common around the exhaust. Thrust-reverser surfaces and exhaust cones are polished if they are stainless steel or bare aluminium; painted reversers are masked off.

Window surrounds, cheat-line trim and any other bright exterior trim are also included, provided the metal is exposed. Some aircraft have anodised or coated brightwork that should not be polished; if we are unsure, we check the OEM maintenance manual or ask the captain before we start. Nacelle skins are polished only if they are bare metal; most modern nacelles are painted, so we treat them as part of the exterior wash instead.

Polishing does not include gear bays, belly panels or any surface that requires jacking or access equipment beyond a standard stepladder. If you want those areas addressed, we can add them to a complete detail where the aircraft is already positioned for deeper access work.

How long does brightwork polish take at Brescia?

Duration depends on the size of the aircraft and the amount of bare metal. A super-midsize jet with modest leading-edge area and painted nacelles typically takes one full day; a large-cabin or ultra-long-range aircraft with extensive brightwork and stainless-steel exhausts can stretch to two or three days. We work in daylight whenever possible because natural light shows oxidation and micro-scratches that artificial light can hide, but if the schedule demands night work—common at Brescia given the cargo activity—we bring high-colour-temperature lamps to match daylight as closely as we can.

The aircraft must be cold-soaked before we begin: polishing hot metal risks warping thin leading-edge skins, and sealant will not cure properly on a warm surface. If you have just landed, we wait at least two hours before starting, longer if the outside air temperature is high. Once polishing is complete, the sealant needs thirty minutes to an hour to cure, depending on humidity; we do not sign off until we have wiped down the surfaces and confirmed there is no haze or streaking.

Most operators combine brightwork polish with an exterior wash or a cabin detail so that the aircraft is comprehensively refreshed in a single visit. If you are doing that, plan on an extra half-day for the wash and at least another day for the cabin, depending on configuration and condition.

What do handling agents expect when we bring in a detailing crew?

Handling agents at Brescia Montichiari are accustomed to third-party service providers working airside, but they expect advance coordination. We notify the handler at least forty-eight hours before arrival with our crew list, vehicle registration and the nature of the work; they arrange airside passes and confirm which stand the aircraft will occupy. Because apron space is shared with night freight, the handler may ask us to work during a specific window or to reposition our vehicle if a cargo movement is scheduled nearby.

We carry our own water if the job includes a rinse, and we use only rinseless or waterless products if the airport or handler restricts water use on the apron. Waste from polishing—spent compound, used microfibre cloths—is bagged and removed; we do not leave anything on the stand. If the aircraft needs to be repositioned during the work—for example, to make room for an arriving freighter—we pack up, wait for the move and resume once the jet is parked again.

The handler will usually ask for a mobile number so they can reach us if there is a change to the apron plan or if the crew needs to return to the aircraft unexpectedly. We stay in radio contact with our escort if one is required, and we keep the tech log nearby so the captain or engineer can sign off as soon as the work is complete.

How does brightwork polish fit into a typical turnaround or layover?

Brightwork polish works best when the aircraft is on the ground for at least twenty-four hours, ideally longer. If you are positioning into Brescia for crew rest or maintenance, we can start as soon as the jet is cold-soaked and finish before the next departure. If you are turning around in a few hours, polishing is not practical; instead, we recommend scheduling it during a longer stop at a nearby hub or combining it with a complete detail during a maintenance window.

For fleets that operate regular routes through northern Italy, Brescia is a convenient mid-point: you can drop the aircraft for a day or two between legs, and we will have it polished and ready when the crew returns. Because the airport is active around the clock, early-morning or late-evening departures are no problem; we adjust our schedule to match yours, and we coordinate with the handler to ensure the aircraft is ready for push-back on time.

Some operators prefer to schedule brightwork polish twice a year—spring and autumn—so the metal is sealed before summer heat or winter moisture takes hold. Others do it quarterly, especially if the aircraft spends a lot of time at coastal airports where salt accelerates oxidation. Either way, the service is mobile: we come to the aircraft wherever it is parked, so there is no need to reposition to a specific facility or wait for hangar space.