| is it FRK? density of 703?
I recently ordered some Fiberglass wool boards from china,it's 48kg/m3 same as 703 with foil.
but im not sure if it's the FRK as you guys mean,so should i still use it in front?
and the density seems abit different with the real 703,because the board is not so hard.maybe the quality isn't as good,but it's cheap.
anyway,i will finish the diy and test the result. |