U.S. imports of Closed Plain-Weave Glass Yarn Fabrics, Uncoated (HS 701963) totaled $1.9M in August 2026, imported from 17 countries.
Importers of Closed Plain-Weave Glass Yarn Fabrics, Uncoated paid $359K in duties in August 2026, an average duty rate of 19.27% — duty actually collected as a share of the imports that cleared customs, not the published tariff schedule. Closed Plain-Weave Glass Yarn Fabrics, Uncoated imports of $1.9M in August 2026 ran 42% above the year-to-date monthly average of $1.3M.
Last updated: August 2026 dataPlain-weave fabrics woven from glass yarns without any coating or lamination are the standard substrate for printed circuit board laminates (notably E-glass style 7628), electrical insulation, and architectural mesh. The US schedule distinguishes these fabrics by filament diameter, width, silica content, and color across nine 10-digit lines, with silica-content lines (7019634030 for >93% silica; 7019634060 for ≤93%) capturing high-performance quartz and specialty glass fabrics. China dominates supply, with Canada and Germany also significant.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
475 import shipments a month
Standard E-glass PCB fabrics (typically 9–11 micron filament diameter, uncolored, width over 30 cm) generally fall under the mechanically bonded, uncolored, wide-format lines within 701963. However, the specific 10-digit line depends on filament diameter and whether the fabric is silica-based. Importers should obtain mill certifications confirming filament diameter and silica content, and consider a binding ruling for high-volume PCB substrate imports given the multiple available lines.
Fabrics woven from silica filaments with silica content exceeding 93% (line 7019634030) are high-purity quartz or fused-silica fabrics used in aerospace radomes and high-temperature electrical insulation — distinct from standard E-glass or S-glass fabrics. The ≤93% silica line (7019634060) captures lower-purity specialty glasses. Chemical analysis documentation from the manufacturer is the standard method for supporting the correct classification.
ImportsExports
Imports
$1.9MYoY · free account
Exports
$1.7MYoY · free account
12-mo low · imports
Low · free accountOver the twelve months to August 2026, the U.S. imported $13.6M of Closed Plain-Weave Glass Yarn Fabrics, Uncoated and exported $15.4M.
Through August 2026. Source: U.S. Census Bureau.
Subheading 14 of 18 in heading 7019
Subheading 701963 · $1.9M of $150.3M
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 |
|---|---|---|---|---|---|
| 7019634060 | Mb Wv Fb of Sil Fl, Nt Clr, Nt Ct or Lm, Sil Lt=93% | $978K | 27.66% | 98.29% | $271K |
| 7019631510 | Mb Cl Wv Gla Fbrcs, Pw, Nt Ct/Lm,<30cm, Lt=185 G/M2 | $393K | 10.01% | 100.00% | $39K |
| 7019631590 | Mb Cl Wv Glass Fb, Pw, Nt Ct/Lm, Width<30cm, NESOI | $251K | 15.99% | 100.00% | $40K |
| 7019639060 | Mb Wv Fb of Sil Fl, Clrd, Nt Ct or Lm, Sil Lt=93% | $219K | 3.14% | 12.77% | $7K |
| 7019630500 | Mb Fbr Tr Cd Clsd Fb Pl Wv Wvn 9-11 Mcrn, Nt Ct/Lm | $15K | 9.77% | 97.69% | $1K |
| 7019637000 | Mb Fg Tr Fb Clrd, Nt Ct/Lm, 9-11 Mcrn Dia Gt 30 Cm | $4K | 0.00% | 0.00% | -- |
| 7019633000 | Mb Fbrgls Tr Nt Clrd Wvn, Nt Ct or Lm, Gt 30 Cm | $474 | 37.55% | 100.00% | $178 |
| 7019634030 | Mb Wv Fb of Sil Fl, Nt Clr, Nt Ct or Lm Sil Gt 93% | — | -- | -- | -- |
| 7019639030 | Mb Wv Fb of Sil Fl, Clrd, Nt Ct or Lm, Sil Gt 93% | — | -- | -- | -- |
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 7019630000 | Closed Wov Fab, Pl Wv, of Glass Yarns, Nt Coat/Lam | $1.7M |
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.
Imports · August 2026
origin
China and Taiwan together supply 50% of it. China pays 44.7% duty; Canada 0.2%.
customs district
destination
entry
rate provision · imports
11.4% enters free of duty; duty collected equals 19.27% of imports for consumption.
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