Gypsum Association Industry Average EPD for Glass Mat Gypsum Panels 9 Inputs (Table 1 continued) Units 1/ 2" GMGP 5/ 8" GMGP ing agent (soap) Pounds Ball mill (BM) accelerator Pounds Edge Paste Pounds Fly ash Pounds Silicone products Pounds Wax Pounds Biocide, sodium omadine, sodium ...