heat seal coffee filter paper 1, from 16gsm to 40gsm, 2,normal width 125mm, 484mm, 90mm. 3 widely used for coffee pods heat ... sealable coffee filter paper is heat sealable, environmental-friendly bleached1, Weight range: 16gsm ... /15mmTensile strength dry, MD 133gsm. 19.4N/15mmBrightness >/= 75%Seal strength Potential 440g/50mmHeatseal ability 120 oC to 160 oC