Nepheline Syenite Plaster Filler from Japan
Coarse nepheline syenite (D50=25µm) for gypsum plasters and joint compounds improving sandability. Replaces diatomaceous earth for better finish. HTS 2529.30.0050 'other' nepheline processed to plaster grade.
Duty Rate — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Except for products described in headings 9903.05.85–9903.05.92, articles the product of Japan, with an ad valorem (or ad valorem equivalent) rate of duty under column 1 less than 12.5 percent, as provided for in U.S. note 52 to this subchapter
Import Tips
• Hegman gauge 4-5 verifies plaster grade vs. paint extender
• Calcium sulfate reactivity tests prevent gypsum confusion
• Dust suppression agents prohibited; dry powder only