Core Material Comparison 2026: How CINON Stacks Up Against 3A, Gurit and Diab

Core Material Comparison 2026: How CINON Stacks Up Against 3A, Gurit and Diab

Comparing core material suppliers is rarely a simple brand-vs-brand exercise. The same PET or PVC foam core chemistry can behave very differently depending on density, thickness, surface finish, process compatibility, and the supplier's ability to hold tolerances across large shipments. This guide compares three established global players—3A Composites, Gurit Holding AG, and Diab Group—with a newer specialized supplier, CINON Composites, using verifiable market data, product specifications, and supplier capabilities.