How to remove paint from metal

Before painting with a metal structure, it is always better to remove rust and old coating. Removing paint from metal can be done in many ways - choose the most convenient.

How to remove paint from metal?

• burning out;
• mechanical treatment (including sandblasting);
• chemical treatment.

Burning out

The first, most radical one is to burn out the cover with a blowtorch. Definitely not suitable for sheet iron (it will “lead”), cast iron (the product will simply crack), galvanized sheets. Plus - quickly, minus - fire hazard. After processing, scale forms on the surface and will have to be ground. Such removal of paint from the metal often does more harm than good, therefore it is rarely used. The mechanical and chemical methods are much more popular.

Mechanical way

You can remove old paint from metal with an ordinary sandpaper or a metal brush - this is called a mechanical method. For these purposes, it is convenient to use a special nozzle on the drill. To begin with, the metal is abrasive with large granules, then polished with smaller ones. Advantages - accessibility and convenience in processing a small area.

On an industrial scale, metal is removed by sandblasting. Paint and rust are ground with a huge pressure of water or air mixed with metal sand or other abrasive. In domestic conditions, even with a drill, removing paint from the metal requires tremendous effort.

Chemical way

How to remove paint from metal chemically? Everything is simple - with the help of various chemical means - washes and solvents. This is not too hard. It is much more difficult to find a quality manufacturer. By the way, according to user reviews, to date, foreign companies BODY and ABRO and the domestic Prestige have proven themselves well. Rinses are offered in various consistencies: liquid and gel, applied by brush, aerosol, water-soluble powder.

To remove the old paint from the metal, the substance is simply applied to the coating and left for some time - from 15 to 30 minutes. Gel coating, by the way, has a definite advantage in that it is distributed evenly over the entire surface with a uniform layer. The old enamel is swollen and peeled off, then it is disconnected with a spatula. After removing paint from the metal, the structure is immediately coated with an anti-corrosion primer. Plus - simplicity, minus - toxicity. The work is ready, now you can think about choosing a paint for metal. In detail read here.