MEKO Silicone Cure Inhibitor from Mexico
Methyl ethyl ketoxime specifically stabilized for use as cure inhibitor in room-temperature vulcanizing (RTV) silicone sealants. Selectively inhibits surface curing while allowing internal cure progression. Pure hydroxylamine derivative classifiable under HTS 2928.00.10.00 per chapter definitions.
Duty Rate — Mexico → United States
13.7%
Rate breakdown
9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico
Import Tips
• Specify silicone RTV application on commercial invoice to justify chemical classification
• Monitor peroxide value (<50 meq/kg) as oxidation products affect classification purity
• Comply with silicone industry VOC emission regulations for coastal state imports