Sika Control AE 100 Viscosity Modifying Agent from Mexico
A polymer-based viscosity modifier that stabilizes concrete aggregates to prevent segregation in self-consolidating concrete. Falls under HTS 3824.40.5000 as a prepared concrete flow control additive. Critical for high-rise construction and precast elements.
Duty Rate — Mexico → United States
15%
Rate breakdown
9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
Import Tips
• Validate slump flow tests per EFNARC guidelines; disclose polymer composition for TSCA; ship in nitrogen-blanketed containers to prevent degradation