How to distinguish high density EAV sponge

  1. EAV Sponge: How to distinguish high-density EAV Sponge: Density The density of EAV Sponge is an important indicator of the material. The high density of the sponge means that the space inside is small and the quality is larger.

  High-density sponge generally refers to sponges with a density of 30 or more, and can be called high-density sponges.

  Mainly used for products with good elasticity and toughness.

  The density calculation method is mainly: weight/volume.

  Density is an important indicator of material. The high density of sponge means that the voids inside are small and the hardness is also high.

  The method of distinguishing sponges in the industry is based on density. The density of sponges is KG/M3. It is the weight of each cubic meter of sponge.

2. EAV Sponge: For example, the density of 40 means that the weight of a cubic meter of sponge is 40 kg, and the density of 50 is 50KG per cubic meter. The density of EAV sponge is generally high in density and the sponge has high hardness, but some are not excluded. High-density sponge will add super soft additives to make the sponge super soft. Used to make sound-absorbing cotton. Sofa cushion. Soft package material. The middle and low sea surface is used as general protection material.

  three. EAV Sponge: The softness and hardness of the sponge of the same density is not certain. Density EAV sponge is generally used for sofa cushions. The density of the sponge is about 35. There are soft, hard and super soft specifications. The mattress is generally around 22. The so-called high-density sponge is a term commonly used by salesmen when introducing products.

According to the interpretation of the national customs department, density>=45 is high density, medium density<45>18. Low density<18. In fact, the industry standard uses 30 density as the sub-level