 How do I get lacing and cells in my flow art? Lacing is where pigmented resin separates out and produces little cells that makes it look like lace. It's a beautiful effect, and here's how to do it. First, you want to mix up your art resin and divide it into cups, depending on how many colors you're working with. Next, you lay those colors out, depending on how you'd like it to go, and you apply a hairdryer at a 45 degree angle, which will start to push those colors around, creating beautiful feathering effects. And when you have the hairdryer on white, especially, that's where it's really easy to see the lacing effect. So it takes a bit of practice, but it's so beautiful, and it's well worth the effort.