Homogeneous and Heterogeneous Vinyl Sheet
There are many types of PVC flooring, including homogeneous vinyl sheet and heterogeneous vinyl floor. So what is the difference between them? Both of them are called PVC flooring or plastic flooring. Their main raw material is PVC. Although both belong to PVC flooring, they are quite different. Let’s see details.
The definition & structure of homogeneous and heterogeneous vinyl sheet
Homogeneous vinyl sheet: homogeneous means that it is same quality material from the surface to the thickness of the entire floor (from the surface to the bottom).
Heterogeneous vinyl floor is in multiple layers by a special process usually from top to bottom five layers. They are UV coating layer, wear layer, printing layer, glass fiber layer and foam backing layer. Its wear resistance is mainly in wear-resistant layer.
Therefore, from the structural point of view, the homogeneous floor is a single-layer structure. And the heterogeneous floor is a multi-layer structure.
Design & color of homogeneous and heterogeneous
Homogeneous vinyl sheet is made of PVC particles of various colors through a special process. It has a relatively single pattern. Only two types of patterns: non-directional floral patterns and directional patterns.
We provide clients various of color collections as options, please click the picture to find more details:
Because the heterogeneous vinyl sheet is a layered structure, printed layer determines the color. The printing layer can change colors and patterns at will. So it has a variety of colors: wood grain, stone grain, carpet grain, all kinds of patterns. That is to say, the heterogeneous floor is more color design options, while the homogeneous vinyl floor is relatively single.
The design and color are different. So the technology is very different. The products of homogeneous vinyl sheet are the high-end products in PVC flooring. Because the color pattern is 2 mm thick throughout the floor, the formation mechanism of the pattern is more difficult, and the production process is quite complicated. The entire production process must strictly control the uniformity of the colors and the color difference. Not a easy job.
While the color of heterogeneous sheet is a very simple printing layer principle. Generally speaking, the cost of a homogeneous production line is five times that of heterogeneous line.
The repair performance of scratches
Because the homogeneous floor is a single-layer structure, its color runs through the entire thickness. This feature makes it have a refurbishing function. Slight scratches can be worn off by a grinder, polished and repaired, and re-waxed as new, with longer service life. But the heterogeneous flooring can not.
Since the heterogeneous vinyl floor contains a foam layer, its sound absorption effect is much better than the homogeneous’.
Fire resistance performance
Homogeneous flooring stone powder content is higher. So the fire resistance is better than heterogeneous floor, and its indentation resistance is also relatively good.
Due to its better wear resistance and fire proof, homogeneous vinyl sheet is mostly used in places with large flow of people in industrial places. For example, hospitals, educational institutions, health care systems, etc..
While heterogeneous vinyl floor is mostly used for home improvement due to its rich color options.