How to spray paint?

[HaileyFitz]

Before spraying, ensure that the aluminum alloy surface is free of dust, stains, and excessive moisture, as these can affect the overall finish. Additionally, after spraying is completed, avoid contact with water and allow it to dry for approximately 72 hours before use.

[Ava]

Painting is actually quite a meticulous process. I've done it myself a few times and here's the workflow I've summarized: First, sand the area to be painted smooth using 400-grit sandpaper. Then, protect the surrounding areas with masking tape. Before spraying, remember to thoroughly clean with degreaser to avoid bubbling. Apply the paint in 3-5 thin coats, allowing 15 minutes drying time between each. Wait half an hour after the topcoat before applying clear coat, then let it dry in a ventilated area for 48 hours. The key is to wear a mask and goggles, with the ambient temperature ideally around 20°C – too high humidity can cause water marks. Keep the spray can 20cm away and move at a steady speed, applying it as evenly and smoothly as sketching.

[Hylla]

Car painting requires some patience. I've seen professionals operate: first treating scratches and rust spots, filling dents with body filler, then sanding smooth after it dries. The cleaning step is crucial - using special degreaser to remove oil films. Primer should be sprayed thin and even, usually two coats suffice. Basecoat must match the factory color code, applied in zigzag sweeping motions to avoid runs. When applying clearcoat, watch the number of layers - too thick will cause yellowing. Don't wash the car for three days after painting to allow full curing. Beginners should practice on scrap panels first to avoid color mismatch and orange peel texture.

[NatalieFitz]

When I first learned spray painting, I made a lot of mistakes. Here are some tips: 70% of the time is spent on preparation, including cleaning, sanding, and masking. Set the air pressure to 2 bar for optimal results. Keep your hand steady and your wrist relaxed, not stiff. Apply the first coat thinly, covering about 60% of the area, then build up layers gradually. Common issues include runs, orange peel, and cracking, often caused by holding the spray too close or using paint that's too thick. Shake the can frequently during use to ensure even mixing. Wear old clothes—this stuff is hard to wash off once it stains.

[OFrank]

The key to automotive spray painting lies in environmental control, I prefer working in a dust-free booth. Start with dust removal and static elimination, and apply heating if the temperature is too low. Color matching is the challenging part, requiring color card comparison and stirring with thinner. For large-area spraying, work in sections with light overlapping coats at junctions to avoid marks. Polishing after the topcoat dries is crucial—start with 2000-grit wet sanding, then use a wool pad with polishing compound. For minor scratches, spot spraying is possible but requires careful edge blending. Beginners should practice on bumpers first, as body panel work is significantly more difficult.

[LeIris]

Painting requires a step-by-step approach, and I was all thumbs at first. A dual-canister spray gun with a pressure regulator is the most comfortable tool to use. Mix the color paint with thinner in the right ratio, usually 1:1.5 works best. When touching up, extend the paint application 10 cm beyond the damaged area for a natural transition. During drying, ensure good ventilation but avoid direct sunlight, as temperature fluctuations can cause wrinkling. For final inspection, check under sunlight—if there are bumps, sand them down again. When painting doors, remove the handles and trim; wheel arch corners tend to accumulate paint, so pay extra attention to these details.