FAQ

Traditional liquid spraying differs from powder coating. Instead of liquid paint, dry powder is applied electrostatically and then cured with heat. This process produces a high-quality, durable finish that is resistant to fading, chipping, and scratching. It is ideal for products that must withstand harsh use or exposure to the elements.

Before you begin, it’s crucial to gather all the necessary tools and supplies. You’ll need a curing oven, a powder spray gun, and your chosen powder coating. It’s also important to wear safety equipment, such as gloves and a mask, to protect against fumes and fine particles. If your workspace is properly organized, the painting process will go more smoothly and quickly.

The secret to successful powder spraying lies in preparation. This involves thoroughly cleaning and degreasing the object to be sprayed. Any traces of rust, oil, or dirt will prevent the powder from adhering properly. Use a chemical paint stripper or sandblasting to create a smooth, clean surface. Once the item is ready, you can begin painting.

The most exciting part of the project is applying the powder coating. Use a powder spray gun to evenly coat the object with powder. The powder adheres to the surface thanks to an electrostatic charge. Once the item is coated, place it in a curing oven, where the high temperatures melt the powder, creating a strong, durable coating. This step is crucial for achieving a professional-grade finish.

If done correctly and with attention to detail, painting your home with powder coating is a satisfying project. Whether you’re creating a new item, customizing a car part, or restoring antique furniture, powder coating provides a durable, beautiful, and fade-resistant finish. Have fun painting!

1. Required Equipment

Choosing the ideal work location is crucial to ensuring your independent painting process is virtually identical to that performed in a factory.

After determining the room location, you must gather and prepare the necessary equipment:

Polymerization furnace (drying);

Constant voltage source (approximately 25 kV);

Powder coating (spray gun);

LKM.

A little experience will not affect the accuracy of the work. However, even without polymerization, following the instructions will help you avoid most mistakes and achieve satisfactory results.

2. Building the Furnace

Polymerization is an important step in the hardening of powder coating. Lowering this working point will cause the LKM to slide off the metal surface. Therefore, tools such as a furnace (also called a polymerization camera) are initially required. Since this equipment is expensive, you can build your own using inexpensive materials. We will need (the dimensions of the polymerization chamber are 2 x 1 x 1 meters):

Profile pipes;

Non-combustible insulation (basalt slabs);

Metal sheets (can be ordered to size);

Tangential fans;

Ten.

2.1 The following steps are outlined in the furnace assembly instructions:

2.1.1. Start the furnace with the profile frame.

2.2.2. Lay the radiator.

2.2.3. Sew the walls with metal leaves. Outside, everything is made of gypsum fiber.

2.2.4. To create convection in the furnace, install a tangential fan, welding one with a narrow output and a wide input.

2.2.5. Insert the fan into the chamber. It will draw air from the top, feed it from the heel, and from below, distributing the chamber throughout the volume.

2.2.6. Set up the stacks along the parallel walls and connect them to the stages via distributors.

2.2.7. Close the stacks and turn on the fan, with the majority of the fan positioned outside the chamber (to avoid melting the windings).

2.2.8. Install the electric heating. Of course, this work is best left to professionals.

The polymerization chamber, as received, has a heating capacity of 12 kW, with an operating capacity of 6 kW.

3. Painting Tools – Spray Guns

Applying powder coating to products requires specialized tools. 3. Electrostatic powder spray guns or electrostatic spray guns. However, purchasing expensive equipment for occasional use is not appropriate. This device can be built in less than ten minutes, as in our case, everything was handmade at home. Such a spray gun is economical, practical, and easy to use. Switching from one coating to another takes only seconds.

3.1 How to assemble a powder spray gun:

3.1.1. Take a regular plastic 1.5-liter bottle. It’s important to keep it dry and clean.

3.1.2. Fill it 1/3 full with powder coating and tighten the metal plug.

3.1.3. Punch small holes in the cork. The more holes, the better the spray. Agitate the outside of the cork to remove the burrs left after perforation.

3.1.4. Connect the supply wires from a high-voltage voltage source to the cork.

To do this, you’ll need a converter capable of outputting 25.000 volts DC. Such devices are found in boilers, gas stove lighters, electric shock devices, and bollard lights. They use batteries or other power sources to convert 3-6 volts to the required 25 volts. 1.000 volts. Once everything is in place, you can get a proper spray gun.

4. Essential Small Things

Before you begin painting, you must carefully ensure that everything is done under ideal conditions:

4.1. Good lighting is essential. Use fluorescent lamps. Powder paint adheres perfectly to traditional tube lamps.

4.2. Good ventilation and two motors (input and output) are required. You’ll also need gauze bandages and, ideally, a professional respirator.

4.3. You must devise a method for collecting the powder paint. Initially, use an old-fashioned, powerful vacuum cleaner.

Once everything is in place, you can begin hand-painting the desired areas.