Optimal Addition Amount of Dibutyltin Dilaurate (DBTDL) Catalyst in Polyurethane Sealants: A Comprehensive Review Abstract: Polyurethane (PU) sealants are widely employed across various industries due to their superior adhesion, flexibility, and durability. The curing process of PU sealants, crucial for achieving desired performance characteristics, is significantly influenced by catalysts. Dibutyltin dilaurate (DBTDL), a commonly used...