Composition

Basalt Felt Spunlace

Weight（g/m²）

＞800

Thickness（mm）

1.8

Air permeability（m³/m²/min）

6

（N/5×20cm）

Tensile strength

Warp

≥2000

Weft

≥2000

（%）

Tensile elongation

Warp

≤10

Weft

≤10

Working temperature（℃）

≤300

Short working temperature（℃）

≤400

Anti-acid

Excellent

Anti-alkali

Excellent

Anti-abrasion

 Medial

The stability of water solution

Excellent

Finishing treatment

PTFE dipping