Paint Finishing Tips:
Paint finishing involves applying paint to wooden surfaces like wardrobes, door panels, baseboards, and heating covers. There are various types of paints, including transparent and opaque finishes. However, improper techniques during the process can lead to defects. It's important to understand these issues so you can identify them and request improvements during supervision.
Be mindful of paint film whitening.
One of the most commonly used materials in painting is nitrocellulose varnish. This type of paint is highly sensitive to humidity. During rainy or humid seasons, especially in northern regions, a semi-transparent milky white layer may appear on the paint surface due to moisture trapped inside. This isn’t caused by complete evaporation. To fix this, use an infrared lamp to dry the affected area, then apply a thin coat of paint mixed with 10-15% butanol-based moisture-resistant agent. Ensure the work area is well-ventilated and dry before starting.
Watch out for color variation and spots.
A popular technique involves mixing different types of paint. If the mixture isn’t uniform, uneven coloring can occur when brushing. Construction workers should ensure proper mixing and apply multiple coats as needed. If the first coat is too smooth or if there’s oil, water vapor, or dust on the surface, the second coat might not adhere properly, leading to spots. In such cases, wait for the first coat to dry, wipe off any oils with soap, lightly sand the surface, and repaint.
Pay attention to wrinkling and peeling.
Wrinkles often occur when the paint film isn't fully dry or when the coating is too thick. High viscosity or direct sunlight exposure can also cause this issue. To prevent it, maintain the right paint consistency, avoid over-thick coatings, use brushes with suitable bristles, and keep the surface away from direct sunlight.
Peeling is common, especially at corners where vertical and horizontal surfaces meet. It usually happens due to excessive dilution or too much paint. Apply paint evenly and quickly, and if droplets form, remove them immediately with a brush. If using a spray gun, keep it 15–25 cm away from the surface. If dripping occurs, let the paint dry, sand the area, and then reapply.
Understanding these common paint finishing problems can help improve quality control and ensure a smoother, more professional finish. Always inspect the work carefully and communicate clearly with your team to address any issues promptly.
Door Hinges,Double Action Door Hinge,Door Hinge Stainless Steel,Stainless Steel Door Hinge H Type
ONLEE HARDWARE CO.,LTD , https://www.onleehardware.com