What is HS code for silicone in primary forms?
Use this as a comparison hint, then confirm the final decision with legal notes and country-specific rules.
HS-6 · Subheading
391000
Silicones; in primary forms
Heading 3910 — Silicones in primary forms
Chapter 39: Plastics and articles thereof
Plain-language overview
Use HS-6 391000 when importing silicones in primary forms, such as liquid silicone rubber or silicone resins. For example, a shipment of 500 kg of liquid silicone used for mold making falls under this code.
This code specifically applies to silicones that are not yet processed into finished products. In contrast, HS-6 3911 covers finished silicone products, like silicone sealants or adhesives.
Silicones classified under this code can be used in various applications, including automotive, electronics, and medical devices. If you're importing silicone in bulk for manufacturing purposes, this is the correct classification.
When considering similar codes, note that HS-6 3909 refers to other plastics in primary forms, which do not include silicones. Ensure you’re distinguishing between these materials to avoid misclassification.
Keywords & topics
Useful terms traders and brokers use for this HS-6 subheading.
silicone imports · primary forms of silicones · liquid silicone rubber · silicone resins · bulk silicone shipments · silicone elastomers · medical silicone materials · automotive silicone products · industrial silicone compounds · silicone gels · silicone powders · silicone fluids · cosmetic silicone formulations · silicone coatings
Examples
Drawn from the official tariff wording for this HS-6 subheading. Always confirm against your published schedule and legal notes.
- Liquid silicone rubber for mold making
- Silicone elastomers in bulk containers
- Silicone resins for coatings and adhesives
- Silicone gels used in medical applications
- Silicone compounds for automotive sealants
- Silicone fluids for cosmetic formulations
- Silicone powders for industrial applications
- Silicone-based materials for electronic components
Common questions
Frequent classification questions with short practical guidance.
How to classify liquid silicone rubber?
Write down material, use, and product form first, then compare nearby lines before you lock the code.
Are silicone resins covered under HS-391000?
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What products fall under HS-6 391000?
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Can I import silicone gels with this code?
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What are the packaging requirements for silicone shipments?
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How do I avoid misclassification of silicones?
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What is the difference between HS-3910 and HS-3911?
Use this as a comparison hint, then confirm the final decision with legal notes and country-specific rules.
Related topics
Common real-world topics that come up during code comparison.
how to classify silicones in primary forms
Use this topic to narrow your shortlist, then validate the final code against legal wording.
examples of products under HS-6 391000
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importing liquid silicone rubber regulations
Check the exact product specs and destination-country tariff notes before finalizing the code.
silicone resins and their HS classification
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packaging requirements for silicone imports
Check the exact product specs and destination-country tariff notes before finalizing the code.
differences between HS-3910 and HS-3911
Compare adjacent HS lines and pick the one that matches material, function, and product form most closely.
bulk silicone shipments and customs codes
Check the exact product specs and destination-country tariff notes before finalizing the code.
using HS-6 391000 for medical silicone materials
Use this topic to narrow your shortlist, then validate the final code against legal wording.
Questions & answers
For orientation only—the binding text is your national tariff and the WCO nomenclature your country uses.
- What types of silicones are covered under HS-6 391000?
- HS-6 391000 covers silicones in primary forms, including liquid silicone rubber, silicone elastomers, and silicone resins, but not finished products.
- Can I use HS-6 391000 for silicone sealants?
- No, silicone sealants are classified under HS-6 3911, which covers finished silicone products.
- What is the typical packaging for importing silicones?
- Silicones in primary forms are often shipped in bulk containers, drums, or intermediate bulk containers (IBCs) depending on the quantity.
- How do I ensure I’m using the correct HS code for my silicone products?
- Review the product specifications and compare them with the definitions in the HS nomenclature. If unsure, consult a customs broker for guidance.
- Are there any special regulations for importing silicones?
- Yes, depending on the end-use, there may be specific regulations regarding safety, environmental impact, or chemical composition. Check with your local customs authority.
- What should I do if my silicone product doesn’t clearly fit into a HS code?
- If you're unsure about classification, consider requesting a binding ruling from customs or consulting with a customs broker for assistance.
- Is there a difference between silicone fluids and silicone gels?
- Yes, silicone fluids are typically liquid and used in various applications, while silicone gels have a thicker consistency and are often used in medical or cosmetic products.
- Can I import silicone powders under this code?
- Yes, silicone powders intended for industrial applications can be classified under HS-6 391000 as they are considered primary forms of silicone.
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