Liquid Potassium Silicate KAS-10 from Mexico
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 — Mexico → United States
13.1%
Rate breakdown
9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
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