1、UV膩子漆施工：UV固化膩子通常用于表面平滑度較差的木材，如刨花板、纖維板等，漆作用是填充底材小孔及微細缺陷，密封底材表面，使隨后涂裝的裝飾性涂料不會被吸入而引起的不平整，從而為 粗材質材料提供 光滑的表面。UV膩子漆固化速度快、加工物件表面干爽、可降低砂磨操作的次數，提高了產品的競爭力。在使用UV膩子漆時，需要先用粗砂紙對基材表面進行打磨清潔，然后采用刮涂的方式進行涂布，UV輻照5~6秒固化，再以280#~400#砂紙打磨，然后涂覆UV漆以及面漆。打磨的目的在于提高層間附著力。
Advantages and disadvantages of uv Coatings and Construction methods of uv Coatings
For uv paint, in fact, many people do not know what kind of coating this is, for the nature of uv coating is not very well understood, this will not know what the advantages and disadvantages of uv coating.
In the selection of this kind of paint is often the need for construction, many people are also curious about the construction of uv paint, the following to understand.
I. advantages and disadvantages of uv coatings.
Uv paint advantages:
The most important feature of uv paint is that its color and lustre is more stable than other paints, does not make it yellow with the increase of time, and has a very high solid content, which can fix the paint film in the shortest possible time.
Moreover, the paint film itself is relatively hard, but also has the characteristics of scratch resistance, acid and alkali resistance, and is not easy to be damaged, so it is one of the best materials for baking lacquer door panels.
The second advantage of uv paint is environmental protection. Low carbon life is popular now. Uv paint does not add any substances harmful to human health in the production process, so uv paint will not cause harm to construction workers.
Uv paint will not emit harmful gases, so any consumer can rest assured to use, and its construction is very simple, to reduce the construction of a lot of difficulty.
Uv paint shortcomings:
Uv paint requires a lot of production equipment in the production process, and many manufacturers are reluctant to invest more money in this area, because once these equipment is in operation, the daily consumption is relatively large, if no large orders have been received.
Many manufacturers do not produce.
Although uv paint has good performance, but its finish effect is worse than PU finish, so it is in the middle of the product, the current consumption level and technical content have appeared an extreme pattern.
It doesn't matter if you want the best quality, it doesn't matter if it's expensive, or the quality is poor but the price is cheap, and uv paint doesn't match either of the two.
II. Construction mode of uv coating.
1. UV putty paint construction: UV curing putty is usually used for wood with poor surface smoothness, such as particleboard, fibreboard, etc., the lacquer action is to fill the substrate with small holes and fine defects, seal the surface of the substrate,
So that the subsequent painting of the decorative coating will not be inhaled caused by the uneven, thus providing a smooth surface for the coarse material.
The curing speed of UV putty paint is fast, the surface of processed objects is dry, the number of sand grinding operations can be reduced, and the competitiveness of products can be improved.
When using UV putty paint, the surface of the substrate needs to be polished and cleaned with coarse sandpaper, then coated by scraping, cured by UV irradiation for 5 to 6 seconds, then polished with 280mm 40mm sandpaper, and then coated with UV paint and topcoat.
The purpose of grinding is to improve interlayer adhesion.
2. Construction of UV primer: UV primer is applied to the smooth wood surface.
The painting process mainly includes several methods, such as brush coating, spraying or leaching coating and so on.
After being coated with a layer of UV primer, the coating with low viscosity can penetrate into the fine pores of wood, retain and strengthen the natural beauty of wood grain and pore structure through the refraction effect of the film layer. UV light irradiation solidifies for 7 to 8 seconds. After curing, it is sanded with sandpaper.
Then the UV topcoat is used for light curing to obtain a smooth, full and smooth finish.
The purpose of grinding is also to improve the adhesion between layers.
3. UV topcoat construction: UV topcoat is widely used in natural wood or wood finish, resulting in high gloss closed grain or sub-gloss grain finishing effect.
The topcoat coating not only plays the role of beautification and decoration, but also gives many special properties, such as solvent resistance, heat resistance, wear resistance, special chemical resistance and so on.
The coating process mainly includes brush coating, spraying or coating, etc., UV light irradiation for 8 to 10 seconds curing direct molding.
Uv coating is a lot of advantages and disadvantages, in the choice of uv coating application, must be able to understand its advantages and determination at the same time, after the selection will not feel that the uv coating is too bad.
Uv paint construction methods also have many, the use of uv coating construction, can meet their own needs, create a good picture.