Detailed Product DescriptionFeatures: 1) Made of high density fiberglass tissue through dyeing 2) It features fireproof, mildew resistance, damp-proof, strong air permeability and good covering properties 3) After adhering to glass wool , it has excellent physical properties, such as heat preservation, noise elimination and fire resistant Specifications: 1) Black fiberglass felt is made of thin high density fiberglass mat through dyeing: a) Weight: 65gsm b) Thickness: 0.4mm 2) Black fiberglass fabric is made of dyed fiberglass yarn: a) Weight: 145g (+/-5%)/sqm b) Thickness: 0.2mm 3) Oxygen index: >=32% 4) Sizes: a) Sheet material (mm): 600 x 600, 600 x 1200 b) Coiled material (m): 1.2 x 200, 1.2 x 500Packing: Sheet material: cartons Coiled material: 3" paper tube + plastic woven bag