HS code for caulk & sealant

HS code

3214.10

US HTS code

3214.10.00

US general duty

3.7%

Source: USITC Harmonized Tariff Schedule, Revision 21 (2026), effective 10/09/2026 · checked 2026-10-28

Mastics, caulks and painters’ fillings are 3214.10.

US tariff lines under 3214.10

US HTS code	Description	General duty
3214.10.00	Glazier's putty, grafting putty, resin cements, caulking compounds and other mastics; painters' fillings 3 statistical suffixes (10-digit codes) 3214.10.00.10 — Mastics › Caulking compounds 3214.10.00.20 — Mastics › Other 3214.10.00.90 — Painters' fillings	3.7%

Import duty on caulk & sealant by country

Import into the US

3.7%

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Import into the UK

See commodity codes ›

Import into the EU

See CN codes ›

Extra duties may apply

The general rate applies to most countries. Imports from some countries also pay additional duties under Chapter 99 of the HTS, such as Section 301 tariffs on many Chinese goods. Check the current measures for your country of origin before you order.

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Frequently asked questions

Q1What is the HS code for caulk & sealant?

The international HS code for caulk & sealant is 3214.10. Mastics, caulks and painters’ fillings are 3214.10.

Q2What is the US import duty on caulk & sealant?

Under HTS 3214.10.00, the US general duty rate is 3.7%. Goods from some countries pay additional duties on top of this rate.

Q3What is the 10-digit HTS code for caulk & sealant?

The first 8 digits set the duty; the last 2 are statistical and depend on details such as material or who the product is for. The full list of US codes under 3214.10 is in the table above.

Q4Is the HS code the same in every country?

The first 6 digits (3214.10) are the same in every country that uses the Harmonized System. The digits after that, and the duty rates, are set by each country.

Find another HS code

New to customs terms? Read what an HS code is and our guide on how to calculate landed cost.

Classification guidance only, not a binding ruling or customs advice. The right code depends on your product’s exact material, function and construction. For certainty, request a binding ruling from U.S. Customs and Border Protection or ask a licensed customs broker.