Railing maintenance

You can wash off fingerprint marks with alcohol or thinner. After washing, rinse with cold water and wipe with a dry cloth.
Wash off oil, grease or lubricants with organic solvents, then with warm soapy water or mild detergent. Rinse with clean water and wipe with a dry cloth.
For dirt that is difficult to remove, wash off with a mild scrubbing detergent, rubbing in the direction of the ground. Rinse with cold water and wipe with a dry cloth.
Severe discolouration can be wiped off with a towel. Rinse with cold water and wipe with a dry cloth.
Traces of rust can be removed by wetting the surface with an oxalic acid solution and leaving it for about 15-20 minutes. This should be followed by washing with a mild cleaner, rinsing with clean water and wiping with a dry cloth.
Paint stains can be removed by cleaning the surface with a solvent, then rinsing with clean water and wiping with a dry cloth.
Scratches on the surface will be removed by gently sanding the surface (using an iron-free material), then washing with a mild detergent, clean water and drying.

What not to do:

Use scouring powders, as these products may leave scratches on the surface;

Do not use products containing chlorides (especially hydrochloric acid), salt or other bleaching agents.
If these products are used by mistake, the surface should be rinsed with fresh water, wiped
with special products to remove oxides and other compounds;

Use carbon steel-based materials such as steel brushes, pads,
steel pads, such as steel pads, mesh, which may leave scratches. The use of cleaning agents and tools is also prohibited,
previously used to clean the carbon steel surface;

Clean the surface perpendicular to the direction of grinding;

Use coarse, abrasive materials.