Intro: Using Sugru to Make Sharp Flashing Corners Safe
After a contractor refinished our deck they left quite a number of sharp rough corners in the flashing. I tried silicone but it wasn't strong enough and kept falling away.
Adding a piece of Sugru to each corner (after cleaning) makes the job much safer and looks better too. I applied the Sugru from the underside, forced it through the gap and smoothed the surface.
I only had black at the time I wrote this, I'll probably touch it up with some white enamel paint.