What are the concepts of paint open and closed

Author:DG Master-museum showcases manufacturers

The showcase furniture industry often talks about the concept of open paint and closed lacquer. This process is mainly aimed at the products with solid wood and panels. For example, like a wood grain showcase, if you want to keep the cabinet uneven natural texture, use open paint.

Conversely, using closed paint, filling the uneven lines, and we will feel smooth and smooth. Let's talk about the types of paint first; 18 major categories, PU, ​​PE, NC others are used in wooden furniture, as well as optical painted paint, acid curing paint, alcoholic acid, phenolic, ester glue, oily paint (generally tung oil or linen linen (generally tung oil or linen linen or linen Oil aggregation). And latex paint, large paint.

In fact, the later applications are not wide. At present, more applications are PU, PE, and Nitrius. Open paint: Open paint refers to the natural characteristics of seeing the wood grain, but just change the color.

This is a commonly used paint method for European and American countries, that is, the water -based slurry is used to color the wood on the substrate. , To the bottom paint, then apply transparent plastic paint. The basic process process is: polishing-primer-polishing-bottom color-second-degree primer-polishing-facial painting but open paint excessively depending on the texture of the original wood matrix, so it comes to relative coming It is said that strict and harsh in terms of materials selection.

Therefore, open lacquer is a spray paint technology that fully reveals the brown hole on the surface of the wood. It is manifested as obvious wood holes, clear texture, and strong natural sense, but its cost is high, and high costs are high. Generally speaking, the brown holes of open lacquer requirement must be deeper and obvious, such as oak, water, willow, etc.

The color is relatively uniform, and the overall feels good. Closed paint: Closed paint, as the name implies, uses paint to close; closed primer to set up a closed substrate pore pore fiber catheter, film formation, it is difficult to polish. Normally tone thin spots.

Viscosity is still high. Generally, a closed type refers to the color (that is, directly use the rag brush on the panel to put the color to the surface layer to be made) and then use the paint to make the primer (generally add a little color) Paint ~! Two times the paint is generally thick, which is easy to polish and flat, so the general tone is thick. The transparency of good polishing is almost, the polishing of good transparency should be slower.

Therefore, the two categories are divided into two categories: divided into solid wood bottom (easy to polish) and sticker bottom (good transparency). Depending on the manufacturer's production process, the number of upper paint will be different. Therefore, closed paint is a spray painting process that is completely characterized by painted brown holes in the surface of the wood.

In summary; the main difference between closed and openness is the matrix of wood. Under the same matrix, the opening and closure of wooden catheters is mainly the construction amount and solid of the paint. Generally speaking, the nitro is used to open the wood matrix effect better.

PU needs to be diluted. Open wood matrix. On the contrary, the effect of closed furniture is better.

PE effect is better. The PU needs to be more than 3 times, and the nitro is very poor. It is difficult to be fully closed.


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