MEKO Silicone Cure Inhibitor from Canada
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 — Canada → United States
13.7%
Rate breakdown
9903.05.2910%Except for products described in headings 9903.05.85–9903.05.93, articles the product of Canada, as provided for in U.S. note 52 to this subchapter
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