Stone Plastic Composite, Solid polymer core, or SPC Flooring, is a vinyl flooring material that has a rigid core made from powdered limestone, polyvinyl chloride and stabilizers. It is dense, dimensionally stable, quiet and strong. SPC flooring is water proof and incredibly durable to wear caused by high traffic. SPC consist of a rigid core layer that’s thinner and more compact. This compactness makes it less likely to expand or contract during extreme temperature swings, which can improve the stability and longevity of your flooring. It’s also more durable when it comes to impact.