The Global HTPB Market Size is expected to reach USD 39.7 Billion by 2032, at a CAGR of 11.9% during the forecast period 2022 to 2032. The synthetic polymer known as hydroxyl-terminated polybutadiene (HTPB) is a vital component of solid rocket propellants. It is a type of polybutadiene with hydroxyl groups (OH) at both ends of its molecular chain, which is a polymer made from the monomer butadiene. The cross-linking reactions that take place during curing depend on this terminal hydroxyl group.