Real Engineerings | Engineering & Technology & Gadgets & DIY on Instagram: "The two core components of a composite material: Matrix & Reinforcement. 🔬 ​Part 1 (The Matrix): The video first demonstrates the properties of the polymer resin (the "glue"). Notice the high viscosity and cohesion, shown by the long, stringy strands. This is a critical property for "wetting out" the fibers. ​Part 2 (The Reinforcement): We then see the bundle of fibers (like fiberglass, carbon, or aramid) after it has b