This 8 lb expanding polyurethane pour foam from Fiberglass Supply Depot is a versatile two-part system designed for a wide range of applications. The kit includes both Part A (Base) and Part B components in convenient gallon-sized containers, providing everything you need to create high-density foam for your projects. When mixed together, these two parts chemically react to produce a durable, expanding foam that’s ideal for flotation, void filling, insulation, and structural reinforcement in marine vessels, recreational vehicles, construction projects, and more. The 8 lb density offers an excellent balance of strength and weight, making it suitable for applications requiring structural support while maintaining buoyancy properties.