Grabber 318111 No-Coat Ultraflex 325 Flexible Corner Tape, 100 X 3-1/4

works great

I like this tape. The description says you can use it for inside or outside corners. Its rather pricey so using it for inside corners is wasteful in my opinion. One thing I found is that in order for this to stick to the wall properly, you need to ensure that the wall is filled in behind the tape fully. You cant get by with one edge not aligning perfectly with the other edge. This takes some getting used to but after you play with it a while, youll get the hang of it. I did use this on angles less than 90 which I feel is this tapes forte. My opinion is it beats old metal corner bead.

This will definitely get you out of prepacking off angles. This is sometimes wildly expensive on Amazon though. Should cost about $45.

Easy to cut to length, looks very durable

I will never use anything else on corners again. Lay it on some ram board coat it with mud stick it on the corner and trowel . Done.

I use this and the 450 for all my outside corners. Its super fast and really easy to install. The finished corners are really strong and dont chip or flake off when hit like traditional corner beads. The only drawback is the specialty tool required to make the installation go faster. Still the best no coat product Ive used so far.

Best thing since sliced bread for diyers