I'm hoping some of the good list members can help me out here.

Gypsum wallboard (sheetrock) filler is usually sanded with an open weave
carborundum mesh mounded on a pad, or often enough just by hand. All I
have ever seen in the stores like Lowes, Home Depot, etc are 4.5x11 or
9x11 sheets. I need some of this stuff in larger sheets - like 18x18 or
18x24 or 24x24.

3M makes it and they would make for me a roll 2ftX75ft  for $900. I
don't need that much of the stuff.

Does anyone have any knowledge of other sources of any sizes bigger than
those little retail packs at the hardware store or 3M and their $900 roll?

Thanks.

Regards,

John Rodgers
88 GL driver
Chelsea, AL