MEKO Silicone Cure Inhibitor from China
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 — China → United States
16.2%
Rate breakdown
9903.05.3112.5%Section 301 (forced labor) — additional 12.5% ad valorem on products of China
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