ams511
Contributor
However, the wing will be seeing plenty of overhead rusty metal and I'd like to patch the outer bag with something tough enough to offer the same abrasion/puncture/cut resistance over top of the cuts as found at the rest of the bag.
Back in the day, I remember reading that cave and wreck divers would wrap the inner bladder with an innertube to give additional protection against abrasion. I have a patch kit that I picked up somewhere along the way that has small nylon patches for repairing the outer bag. Also I am no expert at this but wouldn't you patch the outer bag on the inside when you replace the inner bladder?