Highly effective, phosphite-based color and molecular weight stabilizer for polymers, elastomers, and adhesives.
WESTON™ 618F is a phosphite antioxidant that is highly effective at stabilizing color and molecular weight for a variety of polymers, elastomers, and adhesives. WESTON™ 618F contributes to the thermal and UV stability of these materials as well.
Appearance: White flakes
Specific Gravity @ 15.5 °C: 0.92-0.935
Acid Number: 1.0 mg KOH/g
Refractive Index @ 60 °C: 1.456-1.459
Phosphorus Content: 7.8-8.2%
Flash Point (Closed Cup): 185 °C
Bulk Density: 0.43 g/mL
Melting Point: 37-46 °C
Molecular Weight: 732 g/mol
Food contact approvals
Excellent color stability during processing, fabrication, and end use
Synergizes when used with benzophenone and benzotriazole light stabilizers
Reduced discoloration of polymers containing pigments like TiO₂
High performance at low loading levels
Reduces discoloration of polymers with high processing temperatures that are stabilized with a sulfur-containing, nickel-organic complex
Polyolefins, polyesters, elastomers, styrenics, engineering thermoplastics, and adhesives
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If you have an immediate need for the TDS file please call us at 425.372.9464 if you are located in North America or at 800.2436.7646 in you are in the EMEA.
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Thanks for your inquiry and interest in ChemPoint. We will respond to you shortly.
Privacy PolicyChemPoint will not under any circumstances release personal user or registrant information to individuals or companies. All information collection is solely used to support ChemPoint customer service and communications. Read our Privacy Notice
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