At present, in many new houses, there is a new insulation wall with insulation. This type of wall decoration is very vulnerable to the problem of cracking latex paint. In fact, this cracking is caused by cracks in the wall's cement, or the cracking of the wall's "insulation board" joints, not the quality of the decoration, but the architectural insurmountable flaws.
In order to pursue the best decorative effect, use decoration to make up for architectural defects. We recommend some measures to deal with cracks in the insulation wall. You can choose according to your own actual situation and decoration budget:
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1. After the wall surface is cleaned, first apply a layer of Dacron cloth, kraft paper or newspaper on the wall surface, and use the tension of the fiber to ensure the integrity of the latex paint film. This method is relatively simple and easy, but the effect is general.
2. Remove the insulation board on the surface of the wall, or remove the cement wall. Install a layer of gypsum board or “5 PCT board†on the outside of the insulation layer, and then do the latex paint on it. This practice can remove all irregular cracks, cracks are generally the joints between the plates, better handling. However, this method is expensive and difficult to construct.
3. Use a decorative material with elasticity. At present, on the wall surface treatment, there is a kind of “elastic putty†that can make up for the wall crack problem to some extent. Nippon Paint's "three in one" can also play a role in covering the small cracks on the wall. However, these materials have less "elasticity" and do not work on cracked walls.
In addition, some consumers simply remove the wall insulation. Although this method can be used once and for all, it will reduce the insulation and thermal insulation properties of the wall, so it is not recommended.
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One of the most fascinating materials of our time is polycrystalline cubic boron nitride PCBN - the second hardest material after diamond. At CeramTec, PCBN is used as a cutting material from which indexable inserts are manufactured for machining.
PCBN is produced synthetically and is a "composite material" made of cubic boron nitride and a mostly ceramic binder phase. The ratio of cBN to binder content and the cBN grain size determine the application.
PCBN cutting materials are used in the machining of hard and/or highly abrasive workpiece materials. The high hardness and the extremely high hot hardness (up to temperatures above 1,000°C), the edge stability and inertness towards ferrous materials as well as the basically good chemical resistance give CBN cutting materials a high potential for use in machining. On the cutting material side, a distinction is made between high- and low-cBN cutting material grades.
PCBN (Polycrystalline Cubic Boron Nitride) blanks for cutting tools are composite ultrahard materials sintered by polycrystalline CBN and carbide alloy under ultra-high pressure and high temperature conditions. They combine the hardness, wear resistance, and thermal stability of CBN with the impact resistance and toughness of carbide alloy. PCBN blanks are highly suitable for cutting ferrous and non-ferrous metals with high hardness.
PCBN Composites and Inserts
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