The fiber that I have experience with is fine, long, and leaves "hair" on a broom finish. That stuff works. The fiber they mixed in here looks like rice, it's short, thick bundles of fibers, and I'm not convinced it does anything. I do think mesh would have helped against cracking. This was my recent experience, a cautionary tale. There was too much going on during my shop build that I didn't keep up with my own thread... Please message me with questions on my build, I don't want to hog up space in NCjeeper's project thread
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