HS Code for Urea formaldehyde resin

Urea formaldehyde (UF) resin is classified under HS code 3909.10. This classification falls within Chapter 39, which covers plastics and articles thereof, and specifically heading 3909, which encompasses amino-resins, phenolic resins, and polyurethanes in primary forms. The sub-heading 3909.10 is dedicated to urea resins and thiourea resins. To qualify for this code, the resin must be in a "primary form," which according to Note 6 to Chapter 39, includes liquids, pastes, blocks, irregular lumps, powders, granules, and flakes. Urea formaldehyde is a non-transparent thermosetting resin produced by the condensation of urea with formaldehyde. It is widely used in the timber industry as an adhesive for particleboard, plywood, and medium-density fiberboard (MDF) due to its high reactivity and cost-effectiveness.

Products Included

• Urea-formaldehyde resin powder
• Liquid urea-formaldehyde resins
• Thiourea-formaldehyde resins
• UF molding compounds in pellet form
• Modified urea resins in primary forms

Common Misclassification

Urea formaldehyde resins are often misclassified under HS code 3506.91 if they are prepared as adhesives and packaged for retail sale. However, if the resin is in its primary chemical form without specific retail additives, 3909.10 is correct. Another confusion arises with 3909.20 (Melamine resins) or 3909.39 (Other amino-resins). If the resin is a blend of urea and melamine, it may be classified under 3909.39 depending on the predominant monomer by weight.

FAQ

What is the HS code for urea formaldehyde resin?

The standard HS code for urea formaldehyde resin in primary forms is 3909.10.

Does this code apply to UF resin used in wood glue?

Yes, provided the resin is in a primary form (liquid or powder) and not specifically packaged for retail sale as a finished adhesive.