JPH0446191B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field] The present invention relates to a method for coating a textured substrate used as an exterior material.

[Background technology]

Conventional exterior materials had little change in appearance, as ricin paint was applied to the surface on site.

[Purpose of the invention]

The present invention has been made in view of the above-mentioned points, and an object of the present invention is to provide a method for coating an uneven substrate that can be coated so as to give depth to the unevenness and exhibit a varied appearance. It is in.

[Disclosure of the invention]

The method of coating a substrate with uneven surfaces according to the present invention is to apply lysine paint 3 to the entire surface of a substrate 2 having unevenness 1 on its surface while the substrate 2 is still undried, and then apply the ricin paint 3 while the substrate 2 is still undried. It is characterized in that the upper part 1a is pressed with a roll 6 and a clear top coat 4 is applied only to the convex part 1a from above the ricin paint 3, and the coating is applied as described above. This gives it a deep uneven appearance.

The present invention will be explained in detail below with reference to Examples. 2 is a substrate made of a cement base material such as asbestos cement, and as shown in FIG. 1a, unevenness 1 is formed by pressing at the green sheet stage. The unevenness 1 is, for example, stucco-like. This substrate 2 is coated in the following manner while it is still wet. The first
As shown in FIG. b, the ricin paint 3 is applied over the entire surface of the irregularities 1 using a coating device 5 such as a spray, roll coater, brush coater, or flow coater. Such ricin paints contain aggregates and fibers such as sand. Ricin paint 2 and unevenness after painting 1
The top surface of the convex portion 1a is pressed with a roll 6, and another top coat 4 is applied. In other words, a clear top coat 4 is applied only to the convex portions 1, and this clear top coat 4 gives a gloss, creating a contrast with the grainy, matte portions of the concave portions 1b.
As a result, contrast is created by the top coat 4, and the unevenness 1 becomes deep, resulting in a rich change in appearance.

〔Effect of the invention〕

As described above, in the present invention, the ricin paint is applied to the entire surface of the substrate having irregularities, so the appearance is more varied than when the ricin paint is simply applied to the flat substrate. Of course, since the convex parts of the irregularities are held down and a separate top coat is applied only to the convex parts, the top coat creates a contrast between the grain of the ricin paint on the concave parts and gives depth to the irregularities. The appearance is even more varied, and in addition, ricin paint is applied to the entire surface of the board while the board is still wet, and then the top of the convex part is pressed down with a roll while the board is still wet. Since the clear top coat is applied only to the convex parts over the ricin paint, when the top coat is applied on the convex parts, it is pressed down by the roll and the aggregates and fibers of the ricin paint get inside the top surface of the convex parts. Even if it is buried to strengthen the upper surface of the convex part, or if a top coat is applied to the convex part to create a contrast between the convex part and the concave part,
The ricin paint under the clear top coat is visible from the outside, and since the ricin paint is present on the entire board, there is no difference in the texture itself, and a natural appearance can be obtained.

[Brief explanation of the drawing]

Figures 1a, b, and c are schematic sectional views showing the steps of the present invention, Figure 2 is a plan view of Figure 1a, and Figure 3 is a schematic cross-sectional view showing the steps of the present invention.
It is an enlarged cross-sectional view of FIG.

Claims (1)

[Claims] 1. Apply ricin paint to the entire surface of a board with uneven surfaces while the board remains undried, then press the top of the protrusions with a roll while the board remains undried, and apply ricin paint over the ricin paint. A method for painting an uneven substrate, characterized by applying a clear top coat only to the convex portions.