A polyurethane catalyst controls the reaction rate and timing within a PU formulation. Depending on the catalyst chemistry, it may influence gelling, blowing, curing, or trimerization reactions. Correct catalyst selection is important because excessive or insufficient activity can affect foam rise, flow, curing, cell structure, dimensional stability, and final product performance.
Choosing a polyurethane catalyst depends on the type of PU system and the processing problem that needs to be controlled. Buyers should consider the polyol system, isocyanate, water level, blowing agent, processing temperature, required cream and gel times, curing speed, and final application. XINFA supplies polyurethane catalysts including TEDA, TEDA A33, PC-5, PC-8, BDMA, A-1 and other catalyst products.
TEDA, or triethylenediamine, is a commonly used polyurethane catalyst. It is used to accelerate reactions in various polyurethane systems and is available in different forms depending on formulation requirements. XINFA supplies Triethylene Diamine TEDA CAS 280-57-9 as well as TEDA A33, a 33% triethylenediamine solution. Buyers should select the appropriate form and dosage according to their specific formulation and production process.
TEDA and TEDA A33 are related catalyst products but differ in physical form and formulation. TEDA is supplied as triethylenediamine, while TEDA A33 is a 33% solution of triethylenediamine in a carrier. This difference affects handling, dosing, and formulation use. The appropriate product should be selected according to the polyurethane system and processing requirements.
PC-5 (PMDETA) and PC-8 (DMCHA) are amine catalysts used in polyurethane formulations. Their activity and reaction profiles differ, so they may be selected for different rigid foam or insulation systems depending on the required balance between blowing, gelling, and curing behavior. XINFA supplies both PC-5 and PC-8 among its polyurethane catalyst portfolio.
