I.Vinyl flooringWhich is better, open-celled or dense-packed base?
According to their structure, plastic flooring is classified into two types: homogeneous and composite. Within the composite category, multi-layer composite plastic flooring can be further divided into those with a foamed base and those with a solid base. The "foamed base" refers to flooring where the base material has undergone a foaming process, while the "solid base" refers to flooring without a foaming process.
PVC plastic sheet flooring also belongs to a solid substrate flooring type, and does not have a foamed substrate. only PVC roll flooring has a distinction between a solid and a foamed substrate. In essence, a "solid substrate" PVC flooring is actually a PVC roll flooring with a low-density or non-foamed substrate. For foamed substrates, a foamed layer is used to replace part of the solid substrate.
II. Differences between Plastic Flooring Dense base and Foam base
1、The high calcium carbonate content in the dense bottom layer can reach up to 30%, which makes the product prone to cracking in cold environments. In contrast, the foamed bottom layer, with its low calcium carbonate content and the addition of plasticizers, results in a softer product that is less susceptible to the above issues.
2. Dense-bottom PVC flooring lacks the foamed layer. Under long-term heavy pressure, foamed PVC flooring is prone to leaving indentations. Dense-bottom plastic flooring offers better resistance to pressure and is suitable for areas with heavy loads.
3、The expanded foam flooring provides a more comfortable walking surface and offers excellent sound absorption; however, dense flooring has poor sound absorption properties.
4、In terms of wear resistance, for the same thickness of the wear-resistant layer, the performance of both substrates is essentially comparable.
5. Generally, roll materials with thicknesses of 1.8mm or less are essentially solid substrates. Roll materials with thicknesses of more than 2mm typically use a relatively inexpensive foam substrate instead of a solid substrate. For products of the same thickness, the solid substrate has a higher density, resulting in a larger actual material usage and, therefore, higher costs and prices.