Harmonized System
U.S. imports of Closed Glass Fabrics, Chemically Bonded, NESOI (HS 701972) totaled $823K in August 2026, imported from 11 countries.
Importers of Closed Glass Fabrics, Chemically Bonded, NESOI paid $79K in duties in August 2026, an average duty rate of 9.62% — duty actually collected as a share of the imports that cleared customs, not the published tariff schedule.
Last updated: August 2026 dataChemically bonded closed-weave glass fabrics — where a resin or chemical binder consolidates a tightly woven glass fiber structure — serve demanding applications in electrical insulation, aerospace composites, and high-silica thermal protection. The US schedule distinguishes tire-cord constructions, narrow fabrics (≤30 cm), and wider goods by color status, with separate lines for high-silica (>93% SiO₂) and standard-silica variants (7019720000 through 7019729060). Germany leads US supply, with Costa Rica and China also significant sources. High-silica variants used in aerospace or defense applications may be subject to additional export-control or end-use documentation requirements at origin.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
18 import shipments a month
Fabrics woven from high-silica filaments (greater than 93% SiO₂) have distinct thermal and chemical resistance properties that command different commercial values and, in some cases, different duty rates. The US schedule therefore maintains separate 10-digit lines — such as 7019724060 and 7019729030/7019729060 — for high-silica versus standard-silica constructions, requiring importers to document the silica content of the fiber used.
CBP may request a manufacturer's technical data sheet or process description confirming that a chemical binder (resin, starch, or similar agent) — rather than mechanical interlocking — consolidates the fabric structure. A binding ruling from CBP is advisable when the bonding method is not clearly stated on commercial documentation, particularly for high-value aerospace or electrical-grade materials.
Trade Directory
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Subheading 16 of 18 in heading 7019
Subheading 701972 · $823K of $150.3M
ImportsExports
Imports
$823KYoY · free account
Exports
$707KYoY · free account
12-mo low · imports
Low · free accountOver the twelve months to August 2026, the U.S. imported $8.1M of Closed Glass Fabrics, Chemically Bonded, NESOI and exported $12.7M.
Through August 2026. Source: U.S. Census Bureau.
Imports · August 2026
origin
Germany and Costa Rica together supply 97% of it. China pays 37.5% duty; Costa Rica 0.0%.
HS10 import codes under this HS6 parent, each with its own page. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Imports for consumption | Average duty rate | Dutiable Share | Duty Collected |
|---|---|---|---|---|---|
| 7019729060 | Cb Clsd Wvn Fbrcs of Sil Fl, Clrd, Silica Lt=93% | $608K | 10.00% | 100.00% | $61K |
| 7019723000 | Chem Bon Fbrgls Tr Nt Clrd Wvn, Gt 30 Cm | $101K | 10.00% | 100.00% | $10K |
| 7019724060 | Cb Clsd Wvn Fbrc of Sil Fl, Nt Clrd, Silica Lt=93% | $92K | 0.17% | 0.96% | $154 |
| 7019720500 | Chem Bon Fbrgls Tire Fbrc Wv 9-11 Mcrn Flmnts | $22K | 37.50% | 100.00% | $8K |
| 7019727000 | Cb Fbrgls Tr Fb Clrd 9-11 Mcrn Dia Gt 30 Cm | — | -- | -- | -- |
| 7019729030 | Cb Clsd Wvn Fbrc of Sil Fl, Colored, Silica Gt 93% | — | -- | -- | -- |
| 7019721500 | Chem Bon Closed Wov Fabr, Nt Gt 30 Cm in Width | — | -- | -- | -- |
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 7019720000 | Closed Glass Fabrics, Chemically Bonded, NESOI | $707K |
customs district
entry
rate provision · imports
11.1% enters free of duty; duty collected equals 9.62% of imports for consumption.
Import lines come from the U.S. Harmonized Tariff Schedule and export lines from Schedule B. The two are numbered by different agencies, so the same 10-digit code can appear in both tables describing a different product.