Liquid Potassium Silicate KAS-10 from Japan
KAS-10 is a high-ratio potassium silicate liquid (SiO2:K2O = 3.3:1) for specialty coatings and soil stabilizers. It qualifies under HTS 2839.90.1000 as a chemically defined commercial silicate of potassium. Commonly imported for agricultural and construction uses.
Duty Rate — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Section 301 (forced labor) — Japan (col1 rate < 12.5 percent): MFN < 12.5% → total duty capped at 12.5%
Import Tips
• Declare exact weight ratio and concentration; customs may test for potassium content
• Comply with DOT corrosive liquid regulations for transport
• Avoid pitfall of undervaluation; base value on active silicate content excluding water