SONEX One Baffle ÀÇ ±â¼úÀÚ·á
Physical data - willtec foam
Material
Open-cell melamine-based foam
Density 0.5 to 0.7 lbs./cubic ft. (ASTM D3574-77)
Long-Term Service Temperature 302¡Æ F
Fire Resistance Class 1 per ASTM E 84 (all finishes)
Meets UL 1715 (willtec natural )
Flame Spread per ASTM E 84
Natural: 5
Painted: 10
Hypalon¢ç-coated: 25
Smoke Density per ASTM E 84
Natural: 50
Painted: 10
Hypalon-coated: 65
Microbial Growth Passes UL 181, section 11
Fungus Resistance Rating 0 per ASTM G21
Finishes Natural (white and light grey),
painted or Hypalon-coated
Sound Absorption
Finish

Thickness
Sabins per Baffle per ASTM C423-90a
125Hz 250Hz 500Hz 1kHz 2kHz 4kHz Average
Natural
(white and light grey)
3" 2.3 5.7 10.5 15.3 18.6 24.8 12.9
Painted (charcoal,
beige, brown or blue)
3" 1.1 4.2 12.5 20.9 22.8 21.6 15.1
Hypalon-coated
(black, grey, white or almond)
3" .076 3.96 10.92 18.2 18.45 18.05 12.9
Facility