Doverphos S-480 Phosphite for PVC Stabilization from Germany
Doverphos S-480 is distearyl pentaerythritol diphosphite providing hydrolysis resistance in rigid PVC pipe compounds. Classifies under HTS 3812.39.9000 as plastics compound stabilizer. Essential for long-term outdoor weatherability.
Duty Rate — Germany → United States
10%
Rate breakdown
9903.05.3910%Section 301 (forced labor) — European Union member state (col1 rate < 10 percent): MFN < 10% → total duty capped at 10%
Import Tips
• Certify phosphorous acid content per ASTM test methods
• Include PVC formulator trial data supporting stabilizer function
• Hydrophobic packaging required for moisture-sensitive phosphites