Addovate ThermoStab

Addovate ThermoStab (CAS 73912-21-7) is a phosphorus-based antioxidant and thermal stabilizer used to protect polymers and lubricant systems from oxidative and heat-induced degradation during processing and service life.

Where is Addovate ThermoStab used?

• Plastics processing: incorporated into polyolefins and resins
• Engineering thermoplastics and compounded resins: prevents discoloration and molecular weight loss during high-temperature extrusion or injection molding
• Lubricants: extends oxidative stability of industrial and automotive gear oils, hydraulic fluids, and greases under elevated thermal loads
• Automotive components: specified in underhood plastic parts and rubber-polymer blends where sustained heat exposure is a design requirement
• Masterbatch and concentrate production: evaluated where stabilizer loading must remain effective through multiple processing passes
• It functions as a hydroxy-functional phosphite, intercepting peroxy radicals and decomposing hydroperoxides before they cause molecular chain breakdown.

Commercial specifications

• Technical-grade material is the standard commercial form, with purity specifications aligned to polymer and lubricant additive industry requirements
• Packaging in bags or drums suited to industrial-scale procurement volumes