What is gypsum line, how to identify the advantages and disadvantages of gypsum line

(1) Gypsum line is a house decoration material, the main interior decoration. Can be with a variety of patterns practical and beautiful. With fire, moisture, heat preservation, sound insulation, heat insulation function, and can play a luxurious decorative effect. Gypsum Department of airtight cementitious materials, gypsum relief decorative products must have the corresponding thickness to ensure that its intermolecular affinity to the best degree.

(2) identify the advantages and disadvantages of the plaster line method:

Look at the pattern pattern depth. General gypsum relief decorative products pattern pattern of concave and convex should be more than 10mm, and the production of fine. In this way, after installation, and then by the surface paint treatment, can still maintain the sense of three-dimensional, reflecting the decorative effect. If the pattern pattern of plaster relief decoration products is shallow, only about 5-9mm, the effect will be much worse.

Look at the surface finish. Because of the pattern pattern of the plaster relief decoration products, in the installation of painting can no longer be sanding and other processing, so the surface finish requirements are higher. Only the gypsum relief decorative products with delicate surface and smooth handfeel will have good decorative effect after installation and painting. If the surface is rough and not smooth, it will give a sense of shoddy workmanship after installation and painting.

Look at the product thickness. Gypsum is a gas-tight cementitious material, gypsum relief decorative products must have the appropriate thickness to ensure that the affinity between its molecules to reach the optimal degree, so as to ensure a certain service life and in the use of the period of integrity, safety. If the plaster relief decorative products are too thin, not only the service life is short, but also affect the safety.

Look at the price, and the price of high-quality gypsum relief decorative products, compared with the price of low-quality gypsum relief products cheaper 1 / 3 to 1 / 2. This low price is attractive to the user, but often after the installation and use of the defects will be obvious, resulting in regret.

Gypsum is a monoclinic mineral, is the main chemical composition of calcium sulfate (CaSO4) hydrate. Gypsum is a widely used industrial and construction materials. It can be used as cement retarder, gypsum building products, modeling, medical food additives, sulfuric acid production, paper filler, paint filler and so on. The microporous structure and heating dehydration of gypsum and its products make them have excellent sound insulation, heat insulation and fireproof performance.

Natural dihydrate gypsum CaSO4-2H?O is also known as gypsum, after calcination, grinding can be obtained β-type hemihydrate gypsum CaSO4-1/2H2O, i.e., construction gypsum, also known as cooked gypsum, mortar. If the calcination temperature is 190 °C, model gypsum can be obtained, and its fineness and whiteness are higher than that of building gypsum. If the raw gypsum is calcined at 400-500 °C or higher than 800 °C, it will be floor gypsum, which is slower to coagulate and harden, but after hardening, the strength, abrasion resistance and water resistance are better than ordinary construction gypsum.