Stylish, durable, and generally rust-free, stainless steel letter boxes are a smart investment for student housing, apartment buildings, multi-occupancy buildings, and co-working spaces. They are especially suitable for exterior marine environments where the elements of highly saline air and extreme UV exposure can quickly damage any metalwork or paintwork.

　　One of the many advantages of stainless steel letterboxes is that they are extremely weather resistant and suitable for both indoor and outdoor applications. We recommend pre-treating exterior models with a professional marine treatment to prevent galvanic corrosion, a service offered free of charge from UK PO Boxes, and securing interior units from the elements to reduce the risk of tarnishing.

　　Once installed, your stainless steel letter box can last up to 25 years or more with minimal maintenance. We recommend that you perform the following preservation tasks every three to six months, or longer if you are in a particularly exposed or harsh environment:

　　1. Cleaning and protection

　　Periodically clean the stainless steel letter box with a damp microfiber cloth to remove dust, airborne contaminants, water marks, and fingerprints, then wipe dry with a dry, lint-free cloth. If necessary, you can spray WD40 to remove grease and grime, remembering to wipe in the direction of the grain. Never use steel wool, brushes, scouring pads, harsh abrasives, bleach, or window cleaning fluids on the stainless steel letter box.

　　2. Oil hinges and moving parts

　　Oil hinges, apertures, and other moving parts on the stainless steel letter boxes allow them to move freely. A little WD40 should be enough to get the job done. You can also apply it to a dry cloth and wipe it on screw heads and fixtures to prevent rust.

　　3. Lubrication lock

　　Grease your mailbox locks at least twice a year to maintain their integrity, especially those that are empty. Outdoor mailbox locks can freeze during cold weather, so lubricate them regularly.

　　Our company is Stainless Steel Locker Factory, welcome to consult!