Pumice for Foundry Core Sand Additive from Germany
Fine pumice added to foundry core sands improving permeability and reducing defects. Classified under HTS 2513.10.0080 as pumice stone natural abrasive. Enhances collapsibility for easier shakeout.
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
• AFS Grain Fineness Number testing for foundry sand specifications
• Thermal analysis for core baking performance
• Avoid organic contaminants affecting binder curing