Review on 🏋️ Lightweight Oz Chopped Strand Fiberglass: Optimal Strength and Durability by Trevor Blazis

I've only used a little of this so far but that's what they said. If you're used to Bondo's fiberglass mat, it's thicker. It fits well after it gets wet, but before that it gets quite stiff. Really no complaints. Depending on your application method, you may not even notice it. (I use a brush, not a roller).