| willtec® specifications | willtec® lightweight, open-cell acoustic material meets the following regulations. Where not indicated, the following tests were performed on 1" thick material.
| FM VSS 302 | Passes (automotive) | | UTAC (Union Technique de l'Automobile du Motorcycle et du Cycle): | Passes (Category 1, buses) | | UL Code 94, electronics: | HBF: Passes
HF1: Passes
VO: Passes | | ASTM E B4, Steiner Tunnel Test | Flame spread : 5
Smoke Density: 45
Fuel Contribution: 0 | | UL 1715 | Passes | | FAR 25.853, aviation | Passes | | NYC DOS# 0 500-970317-4001 | | ASTM C 177
Thermal Conductivity | K Factor@50 F: 0.24
R Value: 4.2 | | ASTM D 3574-77 | Density: 0.7 lb/cuft
Tensile Strength: 8 psi
Tear Strength: 0.3 lbs/in | | UL 181 Microbial Growth | Passes | | ASTM G21 Fungus Resistance | Passes | Boeing DSS 9739
Toxic Gas Generation | Pass | |
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| Sound absorption coefficients* of SONEX products - ASTM C 423-90a | | SONEX Panels | 125Hz | 250Hz | 500Hz | 1KHz | 2KHz | 4KHz | NRC | | SONEXone 2" | 0.11 | 0.33 | 0.85 | 1.05 | 1.09 | 1.06 | 0.85 | | SONEXvalueline 1-1/2" | 0.08 | 0.29 | 0.73 | 0.94 | 0.97 | 0.89 | 0.75 | | SONEXpyramid 2" | 0.07 | 0.32 | 0.78 | 1 | 0.97 | 1.08 | 0.8 | | SONEXmini 1" | 0.11 | 0.17 | 0.4 | 0.72 | 0.76 | 0.91 | 0.5 | | 125Hz | 250Hz | 500Hz | 1KHz | 2KHz | 4KHz | STC | | SONEX Specialties | | SONEXtextile 2" | 0.19 | 0.73 | 1.2 | 1.17 | 1.08 | 1.28 | 1.05 | | SONEX Wedges | | SONEXsuper 6" | 0.18 | 0.86 | 1.22 | 1.24 | 1.14 | 1.2 | 1.1 | | SONEX Prospec | | SONEXprospec foam | 0 | 0.26 | 1.01 | 0.82 | 0.68 | 0.6 | 0.7 | | SONEX composite | 0.13 | 0.6 | 0.81 | 0.97 | 1 | 0.9 | 0.85 | | SONEX Curtains | | SONEXcurtain BS | 0.12 | 0.59 | 0.9 | 0.99 | 0.92 | 0.74 | 0.85 | | SONEXcurtain BB | 0.12 | 0.52 | 0.84 | 0.98 | 0.9 | 0.68 | 0.8 | | SONEXcurtain QA-1 | 0.09 | 0.28 | 0.74 | 0.58 | 0.38 | 0.25 | 0.5 | | SONEXcurtain QA-2 | 0.14 | 0.55 | 0.96 | 0.73 | 0.36 | 0.25 | 0.65 | | SONEX Baffles (in sabins) | 4 Freq. Avg |
| | SONEXvalueline | 1 | 5.4 | 10.8 | 16.3 | 18.7 | 24 | 12.8 | | SONEXwet | 1.9 | 5 | 10.2 | 15.5 | 16.3 | 19.5 | 11.75 | |
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| Sound transmission data of SONEX products - ASTM E 90-90 | | | 125Hz | 250Hz | 500Hz | 1KHz | 2KHz | 4KHz | STC | | SONEX Curtains | | SONEXcurtains BB-1 | 15 | 18 | 22 | 30 | 42 | 48 | 27 | | SONEX curtains BS1 | 15 | 19 | 21 | 24 | 42 | 48 | 25 | | SONEX Prospec | | SONEXprospec barrier | 13 | 17 | 21 | 28 | 33 | 40 | 26 | | SONEXprospec composite | 17 | 22 | 20 | 32 | 31 | 43 | 28 | |
| SONEX willtec® colors and finishes | | Natural | White | | | | | SONEXcolortec™ | Charcoal | | | | | Hypalon † | White | Black | Gray | | | Painted † | Charcoal | Gray | Beige | Brown | | † Custom colors also available. SONEXclean is available in various surfaces and colors | |
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