High Temperature Resistant Aluminum Diethylphosphinate Flame Retardant RB-6003 (350℃+ Thermal Stability) RB-6003 Introduction: Developed with advanced organic phosphinate chemical structure, RB-6003 is a highly thermostable halogen-free flame retardant for flexible and engineering polymer applications. The product features a super-high decomposition temperature exceeding 350°C, enabling reliable flame retardant functionality without thermal degradation during high-temperature