HS Code for Industrial sealant

Industrial sealants are classified under HS code 3214.90, which covers mastics and other surfacing preparations. This classification is determined by the product's function as a filler or sealer for joints, cracks, or surfaces. Unlike adhesives, which are designed primarily to bond two surfaces together, sealants are formulated to prevent the passage of fluids or air through gaps. Heading 3214 includes non-refractory preparations that are used to seal or surface structures, making it the appropriate category for most industrial-grade caulks and jointing compounds used in construction and manufacturing.

Products Included

• Silicone-based industrial sealants
• Polyurethane joint sealants
• Acrylic caulking compounds
• Non-refractory masonry sealants
• Industrial resin mastics
• Glaziers' putty for industrial window installation

Common Misclassification

A frequent misclassification occurs with HS code 3506.91, which covers adhesives based on polymers. If a product is marketed primarily for its bonding strength rather than its sealing properties, it may belong in Chapter 35. Furthermore, HS code 3214.10 is often confused with 3214.90; however, 3214.10 is specifically for painters' fillings and mastics used for similar decorative preparation, whereas 3214.90 covers broader industrial surfacing preparations. Refractory sealants used in high-heat furnaces belong under 3816.00.

FAQ

What is the HS code for Industrial sealant?

The HS code for most industrial sealants and mastics is 3214.90.

Is industrial glue classified under the same code?

No, industrial glues and prepared adhesives are generally classified under heading 3506, depending on their chemical composition and retail packaging.