Hydrolysis Stabilizer P 210 Granules
Hydrolysis Stabilizer P 210 granules are classified in HTS 3911.90.15.00 as the named poly(nitrilomethanetetraarylnitrilo...) homopolymer with polyethylene in primary granular form. This thermoplastic additive prevents moisture degradation in engineering plastics like nylon 6,6 and PBT for electrical connectors. Aromatic modification exceeds 95% by weight, dictating specific subheading per Chapter notes.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If for polyamide stabilizer concentrates where polyamide predominates
Subheading note (a)(4) classifies based on predominant monomer; polyamide > carbodiimide shifts to 3908 polyamides.
If silicones modified with aromatic carbodiimide units
Silicone polymers (3910) take precedence over 3911 'other products' when siloxane units predominate by weight.
If sold as masterbatch with >2% carrier resin additives
Masterbatches qualify as chemical preparations (3824) rather than pure polymers when containing significant non-polymer additives.
Not sure which classification is right?
Our AI classifier can analyze your specific product and recommend the correct HTS code with confidence.
Import Tips & Compliance
• Submit technical data sheets confirming exact polymer match to HTS description language to prevent down-classification to 3911.90.19
• Declare as 'primary forms only' with no further processing to avoid 3921 other articles
• Common pitfall: incorrect fiber content disclosure leading to 5402/5403 textile tariff treatment
Related Products under HTS 3911.90.15.00
Stabaxol P 200 Polymer Resin
Stabaxol P 200 is a specialized thermoplastic polymer resin classified under HTS 3911.90.15.00, consisting of poly(nitrilomethanetetraarylnitrilo-[2,4,6-tris-(1-methyethyl)-1,3-phenylene]]-2,6-bis(1-methylethyl)-phenyl]-ω-[[[2,6-bis(1-methylethyl)-phenyl]amino]methylene]amino carbodiimide homopolymer blended with polyethylene. It serves as a carbodiimide stabilizer for polyurethane and polyurea systems, preventing hydrolysis in moisture-exposed applications. The aromatic monomer units exceeding 95% by weight determine its specific subheading placement per Chapter 39 notes.
Carbodimide PE Blend Pellets
Carbodimide PE blend pellets are thermoplastic granules under HTS 3911.90.15.00, featuring the specified homopolymer of 2,4-diisocyanate-1,3,5-tris(1-methylethyl) with polyethylene, where aromatic units predominate by weight. Used as hydrolysis stabilizers in TPU films and coatings for automotive and textile applications. Primary form classification applies as these are unmodified polymer pellets ready for compounding.
Vestamid Stabilizer Resin MP-15
Vestamid Stabilizer Resin MP-15 falls under HTS 3911.90.15.00 as the precise polyethylene-blended carbodiimide homopolymer in primary pellet form with aromatic monomers. Applied in high-performance polyamide compounding for under-hood automotive parts requiring hydrolysis resistance. Meets Chapter 39 note (a)(1) for named polymer with ≥95% characteristic units.
Carstabil 90 PE Polymer
Carstabil 90 PE Polymer is a thermoplastic primary form resin under HTS 3911.90.15.00, matching the exact chemical description of the aromatic carbodiimide homopolymer with polyethylene. Functions as anti-hydrolysis agent in PET bottle preforms and film extrusion, extending service life in humid environments. Polymer classification confirmed by >95% named monomer content per subheading rules.