I recently cemented a broken firebrick and would like to sand the seam flush. The instruction book says to use 285 grit sand paper. Home Depot says that is an automotive nomenclature.
We apologize for the confusion. Thanks for asking for clarification. We use Klingspor CS310 X, 36 grit to sand firebricks.
Paragon Industries, L.P.,
2011 South Town East Blvd.
Mesquite, Texas 75149-1122
Copyright © 2018,Paragon Industries, L.P.
“Custom and standard Kilns and Industrial Furnaces for ceramics, pottery, heat treating, enameling,dentistry, laboratory, and glass fusing.Better Designed Kilns from Paragon Industries!"