Novolac Epoxy Resin
A solid or semi-solid epoxide resin derived from novolac phenolic resins, featuring multiple epoxide groups per molecule, classified in HTS 3907.30.00.00 for primary form epoxide resins. Ideal for high-temperature electrical laminates and adhesives.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If dissolved in solvents for paint applications
Solvent-borne epoxy coatings classify under 3909 as mastics or varnishes, not primary resins.
If polyether backbone predominates without sufficient epoxide groups
Subheading note (a)(4) directs to polyacetals/other polyethers if epoxide monomer <95% by weight.
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Import Tips & Compliance
• Include GPC chromatograms or NMR data to prove epoxide functionality >0.2% and primary form status
• Label clearly as 'epoxide resin' with CAS number (e.g
• 28064-14-4) for CBP verification
Related Products under HTS 3907.30.00.00
Cycloaliphatic Epoxy Resin
Transparent, low-viscosity epoxide resin with cycloaliphatic structure, offering UV resistance, classified under HTS 3907.30.00.00 as primary epoxide resins. Used in optical coatings, electronics encapsulation, and 3D printing.
Flame-Retardant Brominated Epoxy Resin
Brominated bisphenol A epoxy resin (e.g., TBBPA-based) with inherent flame retardancy for PCB laminates, classified HTS 3907.30.00.00 as chemically modified epoxide resins per note (a)(3).
Solid Epoxy Resin Grade E-20
Semi-solid DGEBA epoxy resin (EEW 180-200, softening point 65-75°C) for powder coatings, classified HTS 3907.30.00.00 primary epoxide resins.
UV-Curable Epoxy Acrylate Resin
Epoxy backbone modified with acrylate groups for UV curing, but classified HTS 3907.30.00.00 if epoxide remains predominant per modification rules.
Waterborne Epoxy Resin Emulsion
Liquid epoxy resin emulsified in water (40-60% solids) for eco-friendly coatings, HTS 3907.30.00.00 as primary epoxide resin dispersion.
Multi-Functional Epoxy Resin Araldite GY 285
Commercial penta-functional epoxide resin for advanced composites, classified HTS 3907.30.00.00 primary form.