HS Code for Cellular rubber blocks

Cellular rubber blocks are classified under HS code 4008.19. This classification is determined by the material's physical state and its chemical composition according to the General Rules for the Interpretation of the Harmonized System. Heading 4008 covers plates, sheets, strip, rods, and profile shapes of vulcanized rubber other than hard rubber. The term "cellular" refers to rubber that has been expanded during the vulcanization process to create a structure containing many small cells, which can be open, closed, or a mix of both. While subheading 4008.11 is dedicated specifically to plates, sheets, and strip, subheading 4008.19 serves as the residual category for cellular rubber in other bulk forms. This includes blocks that are too thick to be considered sheets or those that have been cut into shapes other than simple rectangles. The rubber must be vulcanized; if it were unvulcanized, it would likely fall under heading 4005. Furthermore, if the block is made of hard rubber (ebonite), it would be classified under heading 4017.

Products Included

• Vulcanized cellular rubber blocks
• Sponge rubber cubes for industrial padding
• Thick slabs of expanded rubber not meeting sheet dimensions
• Cellular rubber profile shapes in block form
• Foamed vulcanized rubber for shock absorption

Common Misclassification

Cellular rubber blocks are frequently confused with HS code 4008.11, which is strictly for plates, sheets, and strip. The distinction lies in the dimensions and the form; blocks that do not meet the definition of a sheet (usually due to excessive thickness or non-flat geometry) must move to 4008.19. Another common error is using 4016.99, which covers other articles of vulcanized rubber. However, 4016 is for finished products, whereas 4008 is for rubber in primary or bulk forms like blocks. Additionally, if the material is plastic foam rather than rubber, it should be classified under heading 3921.

FAQ

What is the HS code for cellular rubber blocks?

The HS code for cellular rubber blocks is 4008.19, which covers vulcanized cellular rubber in forms other than plates, sheets, or strip.

How does 4008.19 differ from 4008.11?

HS code 4008.11 is specifically for cellular rubber in the form of plates, sheets, and strip, while 4008.19 is the residual code for other forms like blocks and rods.