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

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

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.

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.

We had less of a mess with it easy to put up. Cut back on how much you had to sand. Got the job done faster

This is the stuff to use on outside and inside corners. LOVE it!

Best thing since sliced bread for diyers

Easy to cut to length, looks very durable

I was a little sticker shocked by the cost of this tape. However, once I tried it, Im pretty much hooked on it. It goes on easier than most other types of drywall corners. I tried this product on advice of some random person I met at Home Depot that swore by this tape, and Im so glad I did.

works great

Loved every inch of it, easy to form and adhered really well and never moved. Would recommend!