Straightflex gives you perfect inside corners that resist cracking. It is strong and easy to finish and paint. Remember to just coat the outer edge and keep the mud out of the center. That makes it easy to coat both sides at the same time.
You can by Straightflex here: Original Straight Flex https://amzn.to/3tjt3Sv
You can buy the drywall tools to do the job here: Goldblatt Tool set with Pan https://amzn.to/3ng4AMY
Transcript:
Drywall Inside Corner - Coating Straightflex
So, I'm going to show you how I coat Straight Flex. Now, this is the bottom part of an angle, but every other place is the same. So, the first thing I want to do is because there are little perforations in our Straight Flex, and I like to scrape it, give it a nice scrape. I'm working up to a seam that has already been coated, and I'm going to scrape it down and scrape the other side up to that finished seam.
Then, what I do is take a little mud on my knife, and I'm going to coat down just to cover the edge where those perforations are. That's all you really want to do. So, I'm going to start at the top and just put a nice even pressure. I want to try to get the ridges out on both sides, maintaining a nice even pressure.
[Music]
Okay, so I'm going to count that as done. Now, I'm going to show you how I just covered the perforations, and there's no real ridge there on the inside or the outside. There's a tool mark, but that's okay. I can sand that out. On the other side, I haven't coated it yet; that's just the first coat. You can see those perforations. I'm going to put my second coat on that, and we'll do the same thing—just cover the perforations. What's nice about Straight Flex is that the inside corner is a nice, straight corner that will not crack. That's one of the reasons why I like to use Straight Flex. So, now let's address this other side. Again, I'm just working to cover those perforations to give me a nice mark to work off of. I'm going to apply a nice even pressure on my knife.
[Music]
Okay, so let's take a closer look at that. I would put a little bit of mud just like that, and I would go along the edge just like that, okay? All I want to see is how that does. Then, I'm going to wipe most of it off, and let's see how this works. I realize I need a little more mud right there, okay?
So, that's really all I have to do with Straight Flex. Let me take a look—excuse the back of my head. You know, that looks really nice. As you can see, I just covered the perforations. I don't have any ridges, and if I did, I could clean them up a little bit. It's going to sand really nicely when it dries. So, that's why I like to use Straight Flex and how I coat it.