Originally Posted by TeeDee
I have taken a Cordura backpack, mixed up silicone sealant and painted it. Works like a charm - water rolls off like water off a ducks back.
Haven't pressure tested it to find it's limits for hydrostatic pressure, probably not much, but it doesn't need to withstand much either as a backpack. But I would bet it is better than conventional silnylon.
Hmmm...I would think the impregnation would have a more pressure-resistant end result than a coating process...
How much weight did the "painting" add?