Quote:
Originally Posted by Kiwiburger  Polystyrene foam is used underneath MDF or flooring to reduce impact. However - the resonant frequency is in the audio range (the stuff 'squeaks') so this is dangerous - I prefer open cell rubber foam.
The stuff is a major fire hazard.
As soundproofing, it's low mass is useless. It isn't absorbant, so it's useless for sound treatment.
Basically useless. It's cheap and crushable - that's why it's used for packaging. |
and puts out toxic poisons when ignited..it's not class A fire rated for commercial applications..all my studios stuff is commercial class A even though it's a "home" studio