Lye can become static charged. When using plastic, the charges repel each other. Like with magnets when your point North and North together. It's the same idea.
But like soapbuddy said, use a bounce sheet (Or a different brand) Because that will remove the static charge. What I do with my lye container, I wipe the rim, because the static charges of the container its self make it very difficult to pour.
I thought it was what was supposed to happen at first. I mean I didn't really think anything of it. But when I found out I could minimize the charges like how soapbuddy described, it certainly helped me a lot.
