Dibutyltin Diacetate Application scenarios
1. Acetic Acid-Free Room Temperature Vulcanizing (RTV) Silicone Rubber / Silicone Sealant Curing Catalyst 🧪:
Catalyzes silanol condensation, curing faster than DBTDL; typical products: RTV silicone sealants, potting compounds, molding compounds, and coatings for construction, automotive, and electronics applications; key points: often compounded with DBTDL (e.g., 1:9/2:8) to reduce acetic acid odor and control curing rate.
2. Polyurethane (PU) Crosslinking / Curing Catalyst 🛠️:
Accelerates the reaction between isocyanates and polyols, improving crosslinking density and curing speed; typical systems: PU coatings, adhesives, elastomers, foams, and sealants; key points: suitable for formulations requiring fast curing and high crosslinking density, dosage needs to be controlled to prevent scorching or bubbling.
3. Transesterification / Esterification / Condensation Reaction Catalyst (Organic Synthesis and Polymer Monomers/Raw Materials) ⚗️:
Used in transesterification, esterification, silane polycondensation, polycarbonate raw material synthesis, etc.; typical fields: synthesis of lubricants, plasticizers, antioxidants, pharmaceutical/pesticide intermediates; key points: high activity and fast reaction rate, suitable for continuous and batch processes.
4. PVC Heat Stabilizer 🧩:
Inhibits HCl degradation, improving high-temperature processing stability and initial color; typical products: rigid PVC pipes/profiles/sheets, flexible PVC films/cable compounds; key points: often compounded with lubricants and antioxidants to optimize processing window and long-term performance.
5. Coating / Ink / Adhesive Modification and Curing Promotion 🎨:
Accelerates crosslinking and curing, improving adhesion, hardness, chemical resistance, and weather resistance; typical systems: industrial anticorrosive paints, wood coatings, UV curing aids, metal substrate coatings; key points: conduct small-scale tests first to verify compatibility and yellowing risk.
