The laminate substrate contributes to the long service of the floor: softens deformation at loads, protects from moisture, performs heat and sound insulation functions. There are 4 types of substrates: 1. polyethylene foam; 2. polystyrene; 3. cork; four. Bitumen-Probe. The most common and popular substrate under a laminate made of foamed polyethylene, but it is with its choice that the easiest way to make a mistake. The fact is that foam polyethylene can be three types: 1. gas -sewn nascent (NPE); 2. chemically sewn (PPE-XS); 3. physically sewn (PPE-FS); Often bought NPE mistakenly, since it is 3-4 times cheaper. But “stingy pays twice”, since NPE is several times worse than the PPE in terms of density, strength, moisture resistance and 20-30% in the coefficient of heat and sound absorption. Thus, the PPE-FS, which is produced under the brands “PPE-amone”, “PENOLOL-R”, “HITFOM”, “PEPHOM”, etc., is best suited for the substrate. Advantages: water resistance, heat and sound insulation, chemical resistance, hygiene, efficiency, simplicity of laying. Disadvantages: with high weight online casino singapore, the material can be caviar.