MEKO Silicone Cure Inhibitor
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.
Import Duty Rates by Country of Origin
| Origin Country | MFN Rate | Ch.99 Surcharges | Total Effective Rate |
|---|---|---|---|
| 🇨🇳China | 3.7% | +10.0% | 13.7% |
| 🇲🇽Mexico | 3.7% | +10.0% | 13.7% |
| 🇨🇦Canada | 3.7% | +10.0% | 13.7% |
| 🇩🇪Germany | 3.7% | +10.0% | 13.7% |
| 🇯🇵Japan | 3.7% | +10.0% | 13.7% |
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If supplied in silicone carrier
Silicone oil solutions classified as silicone fluids rather than pure organic compounds.
If adhesive curing additive blend
Prepared adhesive additives containing multiple silane coupling agents classified in chapter 35.
If foundry resin catalyst blend
Mixtures for organic composite manufacturing fall under compound preparations.
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Import Tips & Compliance
• 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
Related Products under HTS 2928.00.10.00
Methyl Ethyl Ketoxime (MEKO)
Methyl ethyl ketoxime, a derivative of hydroxylamine, is a clear, low-viscosity liquid used primarily as an anti-skinning agent in alkyd resin paints and coatings to prevent surface film formation during drying. It functions by complexing with metal driers, delaying oxidative drying. This chemically defined organic compound falls under HTS 2928.00.10.00 as a specific hydroxylamine derivative.
Industrial Grade Methyl Ethyl Ketoxime 99.5%
High-purity industrial methyl ethyl ketoxime (99.5%) used in 2K polyurethane coatings and silicone sealants as a catalyst blocker and anti-skinning agent. Its hydroxylamine derivative structure provides temporary inhibition of isocyanate reactions. Classified under HTS 2928.00.10.00 as a separate chemically defined organic compound per chapter notes.
MEKO Anti-Skinning Agent for Alkyd Paints
Specialty methyl ethyl ketoxime formulated for alkyd paint manufacturing, preventing skin formation by complexing cobalt/manganese driers. Used at 0.1-0.5% levels in air-drying coatings. Meets HTS 2928.00.10.00 as a pure hydroxylamine derivative essential for paint industry per chapter 29 scope.
Pharmaceutical Grade Methyl Ethyl Ketoxime
Ultra-high purity (99.9%) methyl ethyl ketoxime meeting USP/EP standards for use as intermediate in pharmaceutical synthesis of oxime-based drugs. Its hydroxylamine structure provides key reactivity for medicinal chemistry applications. HTS 2928.00.10.00 classification as chemically defined organic compound.
MEKO Paint Drier Blocker
Low-odor methyl ethyl ketoxime developed as paint drier blocker for high-solids alkyd coatings. Provides controlled release of metal catalysts for optimal drying profile. Meets strict chapter 29 criteria as separate chemically defined hydroxylamine derivative under HTS 2928.00.10.00.