The hardness of epe pearl cotton is related to the density of the material. Generally, the greater the density, the higher the hardness. The density is related to the manufacturer. There are many grades. Choose the corresponding density according to the needs. At the same density, imported materials have superior performance than domestic materials. There is no hardness scale.

Polyethylene foamed cotton has a non-cross-linked obturator structure, also known as EPE pearl cotton. It is a new type of environmentally friendly packaging material. It is composed of low-density polyethylene grease that is physically foamed to produce countless independent bubbles

Relevant standards for EPE pearl cotton

Density G/cm3 0.03

Foam Pore ??structure - non-cross-linked seal

Tensile strength KG/CM2 3.40

Tear strength KG/CM2 2.60

Elongation% 125

Water absorption MG/CM2 0.01

Shrinkage (70-C) 0.75

Thermal conductivity KCAL/M.H.C 0.02

Using temperature -C - 60 to 80

Softness-Good

Shear strength KG/CM 1.8-3