Aircraft Soundproofing - This material is a closed cell vinyl/nitrile insulation foam. It is excellent for use anywhere in the cabin, firewall or bulkhead. It does not absorb water or oil and can also be used for heat insulation.
This soundproofing insulation is also fire retardant and meets FAR25.853b, making it suitable for aircraft use. It is black, smooth on the inside, and can be installed using waterproof contact cement. Simple to install by cutting with an electric knife, scissors, or sharp knife.
Aircraft Soundproofing
48″ wide roll, sold by the linear foot. All sizes except 1/8″ are certified. Burn test available upon request. I have heard that people have been getting corrosion behind the super sound proofing because it is so dense that it traps moisture between it and the aircraft skin I'm not sure how true it is but it ma be worth further investigation
Damping Material
There is little doubt that headset technology has made flying much more comfortable. But compare the noise level in the cockpit of a late-model four-place airplane to that of a new four-place car and the difference is dramatic.
Headsets do help, but… In 1974, I recovered my Tri Pacer PA-22-135 with Razorback fiberglass fabric. At the same time I put a fiberglass mat on the firewall and the cowling behind the firewall, carpeted the glare shield, wrapped the entire cabin with 2″ thick sound absorbing fiberglass, replaced all the windows with 1/4′ Plexi glass and replaced the
windshield with a thicker one. After all this we could carry on a conversation with a normal voice level and communicate using the cabin speaker. The added weight was less than 14 pounds and the results were dramatic.!
Charlie "Each aircraft has its 'hot spots.' That's certain areas where noise is the loudest. A good soundproofing job would concentrate on these places that are the noisiest by placing more material there. However, in general, the places in a light plane that admit sound most readily are the firewall, cowl forward of the windshield/instrument panel, kickpanels, sidewalls of the cabin, roof and wing-roots.
But the honor of the most noisy goes to the windows! When replacing windows, use the thickest material you can.” Damping, Absorption, and Barrier materials to reduce cabin noise levels. When the right combination of these materials is installed in the specified location in an aircraft, both airborne acoustic energy and structural-borne vibration energy are reduced.
We purchased a 1968 Cessna 172 a couple of years ago, it had a recent engine overhaul but the interior was pretty well worn. We stripped the inside completely and covered everything except under the floor skins w/ Bill Nash Super Soundproofing.
Everything but the seats themselves were covered with Airtex replacements. The airplane is without doubt the quietest Cessna 172 I've ever flown! 
As a manufacturer of the most comprehensive and state of the art selection of aircraft thermal/acoustic materials, Skandia not only engineers the perfect acoustic plan, but we supply the materials and kitting support to make it happen, easily and efficiently.
Our acoustic solutions are the talk of the aviation industry. You just can't hear it.
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