Is This The Right Stuff? (703)

I have found a place that is my one and only hope of getting any 703 locally. I e-mailed them this question: "You were mentioned as a possible source for Owens Corning 703 (3 pcf) and 705 FRK (6 pcf). Do you carry these materials" Their reply was: "I WOULD NEED TO KNOW THICKNESS OF INSULATION. DO YOU WANT A FOIL BACKING? I STOCK 703 BD. 1,11/2,AND 2'' WITH A FSK OR ASJ BACKING" Sorry for the very remedial question, but (for putting in corners as bass trapping) is this the correct stuff? Thanks! :)

The preferred is "unfaced". Just plain 703.

What does the BD stand for? That is my main concern because I have never heard it called that before. Thanks again!

BD is just an abbreviation for "board" in this case - this stuff is often referred to as insulation board because it's so much stiffer than the normal house type batts... Steve

Thanks :D