The International Cessna^® 170 Association

Looking for some suggestions on insulation/sound deadener materials.Dont want to go overboard as far as adding weight.
Thanks

I believe this is what is in my airplane. But to be honest, don't expect to make these things quiet. Spend your money on door seals and ANC headsets. http://www.aircraftspruce.com/catalog/a ... panels.php

I suspect this stuff would be better at suppressing noise.: http://www.aircraftspruce.com/catalog/a ... nstall.php

Like George says don't expect this to make any difference sound wise. I used a 1" four layer material that is supposedly the best available with no change. I did notice a huge difference in the temperature stability. I used to have a problem with the rear passengers freezing while we would be to hot in the front seat, now I just pull the heater out about 3/4" and the whole cabin is comfortable. If sound is your main concern, get a good set (or 2) of noise reduction headsets.

Soundex insulation kits by Avis Industries 888-513-5088 are STC'd for 170s. They are pre-cut and fit well. Around $700.

Thanks everyone.Sound isnt my major concern.Its insulation.I will check out the websites.I have the doors apart and removed old loose fiberglas and would like to put something in.Noise cancelling headsets are a sure thing.
Thanks

Make sure ALL of that old fiberglass insulation is out of your plane. It is breeds corrosion. Bad stuff.