How to Paint Stainless Steel

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There are some methods that allow you to PAINT and finish stainless steel.You can highlight your project using different techniques, such as liquid paint, powdered pigments, wax, lacquer and patina.Liquid color presents challenges because the stainless steel finish is completely smooth and creates some adhesion problems.However, if you want to change the color of the metal or create a particular surface effect, paint is certainly one of the most suitable solutions.
Method 1
Method 1 of 3:

Getting ready to paint

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  1. Step 1 Acquista il colore.
    Choose one that is oil-based and of good quality.You can decide to apply it by spray, with a brush or a roller, based on the final effect you want to achieve.Buy the right tools depending on your needs.
    • To get the smoothest look possible use spray paint;the roller gives a certain consistency to the color, while the brush accentuates it.
  2. Step 2 Procurati la cera giusta.
    You can find many high-quality products in hardware and home improvement stores;these waxes are specifically designed to treat metals.Ask the clerk which one you should buy based on your needs.You will apply it on the colored surface as a final protection.
  3. Step 3 Raschia l'acciaio inox.
    If you need to color a relatively new metal that hasn't been used for years, then you'll have to create some artificial "damage."Stainless steel is finished to be as smooth as possible, but this makes it very difficult for color to stick.[1] If the metal is already scratched from years of use, then the paint may stick.If not, use a grinder to roughen the surface.Be careful because you don't want to destroy the material, but just create some scratches to simulate normal wear.
    • You can rent the grinder from a DIY store.
    • If you don't want to rent a machine, then you can try grinding the metal by hand.Get a scouring sponge and spend some time rubbing it on the steel.This way you can simulate scratches. [2]
  4. Step 4 Pulisci e prepara il metallo.
    You need to get rid of all traces of grease, dirt and other residues.It is worth using a specific steel cleaner or degreaser;both are available at home improvement stores.If you have decided to use a detergent, carefully read the drying times indicated on the package.Respect these times before continuing with your project.[3]
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Method 2
Method 2 of 3:

Painting Stainless Steel

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  1. Step 1 Acquista un primer.
    Choose the product you prefer, as long as it is specifically designed for stainless steel.The primer, also called primer, is a binding agent that allows adhesion between several substances, but it must be of excellent quality and above all specific for the material you are treating - in this case stainless steel.This product guarantees a smooth surface.[4]
    • For most colored paints a white primer is recommended, but if you have decided to apply a very dark color then you should use a primer of the same shade.
  2. Step 2 Applica l'aggrappante.
    If you want to get a very smooth coat, you should consider renting a spray machine from the hardware store.You can also use a brush, but eventually you will notice the lines of the brush strokes.Spread a coat of primer over the entire area you want to paint.[5]
    • If you have decided to use an airbrush, hold the nozzle 30-45cm from the metal and try to use a wide spray.
    • In this case, remember to apply the product in one direction only;if any marks remained, the surface would still have a uniform appearance.[6]
    • Wait for the primer to dry before you start painting.
  3. Step 3 Comincia ad applicare le mani di colore.
    You have already completed the difficult work, all that remains is to apply several layers of color to the stainless steel.Once the primer has dried you can move on to the paint, but remember that you must wait for each coat of color to dry before applying the next one.Generally 2-3 layers of color should be enough.Again you have to decide between the airbrush and the brush.If you used the brush for the primer, you will also need to use the same tool for the color. [7]
    • If you like brush stroke marks you can also use a rag to increase this effect and obtain a sort of surface "decoration".
  4. Step 4 Aspetta che la vernice si asciughi.
    Read the instructions on the can of paint you purchased for drying times.When the color is dry, you can proceed to the next steps.
  5. Step 5 Al termine, stendi uno strato di cera.
    Apply a thin coat over the entire painted area and wait for it to dry until it becomes matte.At this point you can polish the metal with a clean, dry cloth.This final process protects and seals the metal.[8]
    • You can also use car wax.
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Method 3
Method 3 of 3:

Alternative Solutions

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  1. Step 1 Recati da un verniciatore professionista che utilizza pigmenti in polvere (puoi fare una ricerca online).
    It is an electrostatic process in which powdered pigments (plastic or epoxy) are deposited on the metal surface forming a very thin layer.At this point we proceed with a "baking" to fix the color.The advantages of this technique are the flexibility, the wide range of colors and surface effects, as well as the ability of the powder to adhere to small cracks and grooves without running or dripping.
  2. Step 2 Scegli la patina perfetta.
    [9] These are chemical solutions that modify the surface of metals, causing them to change color.Some are applied hot, others cold and there are many blends to choose from that allow you to get the best out of your project while maintaining a natural finish.At the end, waxes are often applied to permanently seal the steel.
  3. Step 3 Lacca il metallo.
    [10] Acrylic lacquer is another product for treating the surface of your metal work.It is easy to apply, "forgives" some processing errors, but ultimately leaves a noticeable "transparent surface coating" that not everyone likes.The lacquer can be easily touched up and reapplied later without affecting the overall appearance of the metal.
  4. Step 4 Prova lo smalto per unghie.
    To color small surfaces or apply writing you can use nail polish, which adheres well and has a very pleasant appearance.It is available in many shades, although red shades are the most common.
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Advice

  • Always follow the instructions on the package and do your research on the manufacturer's website to get the best results.
  • Always work in a dust-free environment to avoid contaminating surfaces.
  • Make sure each coat of color is dry and well adhered before applying subsequent layers.
  • When applying powdered colors, it is sometimes necessary to sandblast the surface and often it is necessary to immerse the metal in a ferric phosphate bath before proceeding with processing, to ensure excellent adhesion of the color.
  • The metal surface to be painted must always be clean.Use a degreasing solvent such as alcohol, acetone, or methyl ethyl ketone.
  • Never mix chemicals contrary to the manufacturer's instructions.
  • Always wear gloves and a chemical-resistant mask or goggles.
  • Always work in a well-ventilated room.
  • Always wear airway protection or a respirator.
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