16 oz aramid Hydrolox® vs 18 oz aramid Needlefelt

16 oz aramid
Hydrolox®
18 oz aramid
Needlefelt
Support Fiber Fiber
Weight (oz/yd2) 16 18
Air Permeability (cfm) Min: 20
Max: 35
Min: 15
Max: 35
Thickness (mil) Min: 80
Max: 95
Min: 80
Max: 100
Mullens Burst (psi) (Minimum) 650 650
Tensile (MD lbf) (Minimum) 270 200
Tensile (CD lbf) (Minimum) 400 200
Elongation @ 11.24 lbf (%) 2 3
Heat Stability (% Shrinkage at 450 F) 1.0 3.0
VDI Test Data: (ASTM D6830-02)
Total of Abs [mg] 0.2 0.8
PM2-5  Efficiency % 99.998 99.989
>PM2-5  Efficiency % 99.999 99.996
Total  Efficiency % 99.999 99.994
PM2-5  Emissions % 0.002 0.011
>PM2-5  Emissions % 0.001 0.004
Total  Emissions % 0.001 0.006
Clean Gas Concentration [µ/m3] 20 100

The property values listed in this specification are determined through statistical sampling from production campaigns and are subject to industry-wide tolerances. Typically, Bondex test protocol requires averaging at least ten representative measurements to produce a reported value, and the company reserves the right to make amendments without notice. Hydrolox® is a registered trademark of Bondex, Inc.