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Auralex 4" Mineral Fiber Insulation

Auralex 4" Mineral Fiber Insulation

List Price: $154.99
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Availability: YES, in stock
Product Code : 4MF24


4MF24, Mineral Fiber Insulation 4-inch - 3 panels, Auralex

Auralex 4" Mineral Fiber Insulation

The best way to tighten up a room's sound and make it more soundproof in the process is to design it right, build it tight and make the partitions as dense as possible. That's where Auralex's specialized Mineral Fiber Insulation comes in.

It's WAY more dense than "the pink stuff" and is specifically designed for acoustical usage. It yields much better bass trapping, overall absorption, thermal characteristics, moisture absorption and sound transmission loss (isolation) than any other product we've found.

Use it as insulation in your wall/floor/ceiling soundproofing construction or cover it with acoustical cloth and hang it on the wall or ceiling for a viable alternative to acoustic foam panels.

Advantages vs. Standard Fiberglass:

  • better sound isolation and acoustic absorption
  • lower moisture absorption
  • lower flame spread and smoke density
  • 1200� burn point vs. 650�
  • 8 lb./cubic ft density
Freq. NRC
125 Hz 1.11
250 Hz .91
500 Hz 1.07
1 KHz 1.03
2 KHz 1.06
4 KHz 1.07
Overall 1.00

NRC: 1.00*
2' x 4' x 4" per piece
3 pieces per box
Coverage: 24 sq. ft.
Flame Retardancy: Class A

*Note: While 2" and 4" Auralex Mineral Fiber offer virtually the same absorption between 250Hz and 4kHz, 4" is dramatically more effective at 125Hz. While 2" offers a 125Hz absorption coefficient of .32, 4" offers an absorption coefficient of 1.11. It also bears mentioning that 4" Auralex Mineral Fiber will offer higher levels of sound transmission loss (STL) than will 2" due to the increased mass 4" offers.

Mineral Fiber Insulation Between Wall Studs Mineral Fiber Insulation Between Floor Joists
This image shows 2" Mineral Fiber Insulation in a 2'x4' stud wall. Notice the use of stringers. Mineral Fiber Insulation may be used between floor joists for enhanced sound transmission loss.

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