1, before use should be strictly in accordance with the ratio in the instructions for use, polyester paint according to the construction requirements to add supporting thinner diluted to the construction viscosity.
2. When multi-component polyester lacquer is formulated, it should be thoroughly mixed and allowed to stand for about 15 minutes in order to facilitate the pre-aging reaction between the components and eliminate bubbles generated during stirring.
3. When spraying or brushing, ensure that the substrate is dry. The moisture of the substrate can easily cause peeling, blistering, and detachment of the paint film. At the same time, the thickness of the paint film should be strictly controlled. Too long a wet film can be dried for a long time. It is easy to absorb the moisture in the air to make the paint film white and foam.
4. The low-boiling point solvent still has the problem of staying in the coating film. Therefore, attention must be paid to the control of the interval between the layers during construction. The short inter-laminar spacing can easily cause blemishes such as air bubbles, wrinkled skin, and whitening of the coating film.
5, must wear masks during construction, to maintain indoor ventilation, to avoid inhalation of dust and solvent volatile substances inhaled into the body. The flash point of solvent-based wood lacquer is low, and no open flame is allowed on the construction site to prevent fires.
6. Avoid construction during rainy seasons and high humidity. Especially in high humidity weather spraying can easily cause whitening of the coating; furniture painted in rainy weather can not stack, so as to avoid mildew blackening on the furniture surface.
7. To avoid the simultaneous construction of polyester paint and latex paint, it is best to brush the latex paint after the polyester paint is completely dry. Because the polyester paint contains free TDI, the volatile matter in the brushing process will lead to latex paint. Yellowing.
8. There are a wide variety of new types of sheet metal at the moment, to remind painters that they must make small samples, that is, small-scale construction, and then proceed with large-scale construction without problems, so as to ensure that the construction quality meets the standard requirements.
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UV accelerated aging test chamber
A UV accelerated aging test chamber is a specialized piece of equipment used to simulate the effects of long-term exposure to ultraviolet (UV) radiation on various materials and products. It is commonly used in industries such as automotive, aerospace, cosmetics, and electronics to evaluate the durability and performance of materials under accelerated aging conditions.
The chamber typically consists of a controlled environment with UV lamps that emit high-intensity UV radiation, simulating the UV exposure that materials would experience over an extended period. The UV lamps produce a spectrum of UV light, including UVA, UVB, and UVC, which can be adjusted to mimic specific environmental conditions.
The test specimens or products are placed inside the chamber, and the UV lamps are turned on to initiate the aging process. The chamber may also incorporate other environmental factors such as temperature, humidity, and airflow to simulate real-world conditions more accurately.
The accelerated aging process allows manufacturers to assess the effects of UV radiation on the materials' physical, chemical, and mechanical properties. It helps determine the degradation, discoloration, embrittlement, cracking, or other changes that may occur over time due to UV exposure.
UV accelerated aging test chambers are essential for quality control, product development, and compliance with industry standards and regulations. They enable manufacturers to evaluate the performance and lifespan of materials, optimize formulations, and make informed decisions about product design, materials selection, and UV protection measures.
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