Seamless combination of paint and wooden doors can have unexpected effects
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The painting process of a wooden door is the final stage in the manufacturing cycle and one of the most critical steps. It not only determines the appearance of the product but also reflects the overall technical capability and competitive edge of the manufacturer. Many wood door producers often say that while woodworking might be manageable, the painting process is the most challenging part of their business.
When it comes to wood door painting, the core elements are coating application techniques and coating management. The application technology includes selecting the right coating, designing the coating process, and using appropriate equipment. Common types of coatings used include PU (polyurethane), PE (unsaturated polyester), UV (ultraviolet curing), NC (nitrocellulose), and W (water-based) paints. Each has its own advantages and applications depending on the desired finish and production requirements.
PU paint is the most widely used in domestic enterprises due to its excellent performance in construction, filling, hardness, and scratch resistance. PE paint, mainly used as a primer, offers high hardness and good fullness but requires more complex application and is less flexible. UV coatings are gaining popularity due to their environmental benefits and superior performance. They are especially popular in regions like the Pearl River Delta, where they have been adopted for both transparent and solid-color finishes.
NC paint, though an older type, is still widely used for its fast drying time and ease of application. Water-based (W) paints are less common on doors but are occasionally used to meet specific international standards or customer demands.
Each type of paint has its own strengths and limitations. Choosing the right one depends on the product's positioning, the desired surface effect, and cost considerations. A proper selection can lead to better results, saving time and resources. On the other hand, a poor choice may result in wasted effort and materials. For example, if a customer wants a smooth and glossy finish, using NC paint might not be the best option, as it may require more time and material to achieve the same result. Conversely, for an open or semi-open finish, NC paint could be ideal.
UV coatings, despite their higher initial investment in equipment, offer high efficiency and long-term cost savings. As technology continues to evolve, these coatings are becoming more accessible and versatile, making them a strong choice for modern wood door manufacturers.