Textile assistants water proofing agents

Textile assistants and waterproofing agents for fabric

NO PGA · STANDARD CUSTOMS PROCEDURE

HSN 3809 91 70 (textile assistants — waterproofing agents) is not covered by a Bureau of Indian Standards Quality Control Order and carries no Partner Government Agency clearance requirement at the tariff-line level. Import follows the standard customs procedure: Importer-Exporter Code (IEC), bill of entry, commercial invoice, packing list. Other finishing agents, dressings, or mordants within Chapter 38 — particularly those serving paper or leather industries, or preparations with hazardous chemical constituents — may be classified under sibling tariff lines that carry distinct compliance obligations.

No partner government agency notification covers this tariff line.

A word of counsel

The principal risk at this tariff line is misclassification: waterproofing agents containing regulated chemical constituents, or preparations dual-classified as surface-active agents under Chapter 34, may be re-classified on examination, triggering retrospective compliance and detention pending the relevant clearance. Importers should verify the precise chemical composition and intended end-use against the customs tariff to confirm the 3809 91 70 classification holds on examination.

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Frequently asked

Does HSN 3809 91 70 require any pre-import registration?

A valid Importer-Exporter Code is required for any commercial import; no product-specific registration applies to this tariff line.

What changes if the waterproofing preparation is formulated primarily as a surface-active agent?

Preparations classified principally as surface-active agents fall under Chapter 34, which carries its own tariff treatment, and customs re-classification to that chapter triggers retrospective compliance review.

Last verified against gazette notifications: 2026-05-16. Source: BIS / DGFT / Indian Customs CUSDATA.