|
I did a bunch of EPS diffusers a while ago and one thing to look at is the density of the foam, you can get 60, 80 and 100psi blueboard that is higher density and will reflect lower freq.
The standard density at home depot is 30 IIRC.
Also for the price for me (did about 200sf) I picked up an airless sprayer on craigslist for $100, a decent airless sprayer can put out about 3 gallons an hour, so it's a bit faster than spraypaint and definitly cheaper. Maybe too late now, but possibly useful info for those about to do some EPS diffusers.
|