Products A–Z
HS code for mastics, stopping and sealing
In the UK Trade Tariff’s list of everyday names, “mastics, stopping and sealing” points to subheading 3214.10: glaziers' putty, grafting putty, resin cements, caulking compounds and other mastics; painters' fillings. Check the description and the notes of the chapter before declaring: the right code depends on what the goods are made of and how they are used.
The UK Global Tariff divides 3214.10 into 2 tariff lines; the duty is 4%.
In the EU Combined Nomenclature, 3214.10 covers 2 tariff lines and the duty is 5%.
The Turkish Customs Tariff Schedule divides 3214.10 into 4 tariff lines; the duty is 5%.
Duty rates compared
UK 4% Third-country duty 2 tariff lines 
EU 5% Third-country duty 2 tariff lines 
Türkiye 5% Third-country duty 4 tariff lines 
USA 3.7% General (MFN) 1 tariff line 
Canada Free – 6.5% General (MFN) 4 tariff lines · average 4.9% 
Mexico 3% – 5% General (MFN) 2 tariff lines · average 4% 
Brazil 12.6% General (MFN) 2 tariff lines 
Argentina 12.6% General (MFN) 8 tariff lines 
Peru 6% General (MFN) 2 tariff lines 
New Zealand Free – 5% General (MFN) 6 tariff lines · average 0.8% 
Japan 3.3% General (MFN) 1 tariff line 
Taiwan 5% – 6.5% General (MFN) 4 tariff lines · average 5.4% 
GCC 5% General (MFN) 14 tariff lines 
Switzerland Free General (MFN) 1 tariff line 
Norway Free General (MFN) 4 tariff lines 
North Macedonia 5% – 6% General (MFN) 3 tariff lines · average 5.7% 
Nigeria 10% General (MFN) 2 tariff lines Questions and answers
What is the HS code for mastics, stopping and sealing?
Mastics, stopping and sealing are classified under 3214.10 (Glaziers' putty, grafting putty, resin cements, caulking compounds and other mastics) in the Harmonized System. National tariffs add more digits; see the lines on this page.