Resin-based composites are materials made by combining a resin, often a type of plastic, with reinforcing agents like glass fibers or carbon fibers. These composites are known for their strength, durability, and lightweight properties, making them suitable for various applications, including automotive, aerospace, and construction. The resin acts as a binder, holding the reinforcing materials together and providing shape and structure. Common types of resins used include epoxy, polyester, and vinyl ester. The versatility of resin-based composites allows for customization in terms of performance and appearance, catering to specific needs in different industries.