U.S. imports of Mechanically Bonded Glass Mats (HS 701914) totaled $1.9M in August 2026, imported from 22 countries.
Importers of Mechanically Bonded Glass Mats paid $450K in duties in August 2026, an average duty rate of 23.61% — duty actually collected as a share of the imports that cleared customs, not the published tariff schedule.
Last updated: August 2026 dataMechanically bonded glass mats — where fibers are held together by needle-punching or stitch-bonding rather than chemical binders — are used in roofing substrates, filtration media, and composite preforms where binder-free construction is required. All imports enter under a single tariff line, 7019140000. China leads US supply, with Germany and Bahrain also notable sources; the concentration of supply from China means Section 301 tariff exposure is a primary cost consideration for buyers.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
150 import shipments a month
The bonding method is the controlling distinction: mechanically bonded mats (701914) rely on physical interlocking of fibers through processes like needle-punching, while chemically bonded mats (701915) use resin or binder systems. Importers should obtain manufacturer process documentation, as the two headings carry separate tariff lines and the distinction is not always apparent from visual inspection alone.
Roofing membrane substrates and industrial filtration are the most competitive segments. China is the leading supplier, and Section 301 tariffs apply to Chinese-origin shipments, which has driven some buyers toward German and Bahraini sources. Supply-chain diversification and landed-cost modeling are therefore routine considerations for procurement teams in these sectors.
Subheading 13 of 18 in heading 7019
Subheading 701914 · $1.9M of $150.3M
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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 |
|---|---|---|---|---|---|
| 7019140000 | Glass Mats, Mechanically Bonded | $1.9M | 23.61% | 98.17% | $450K |
HS10 export codes under this HS6 parent, each with its own page. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 7019140000 | Glass Mats, Mechanically Bonded | $832K |
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.
ImportsExports
Imports
$1.9MYoY · free account
Exports
$832KYoY · free account
12-mo low · imports
Low · free accountOver the twelve months to August 2026, the U.S. imported $19.5M of Mechanically Bonded Glass Mats and exported $11.3M.
Through August 2026. Source: U.S. Census Bureau.
Imports · August 2026
origin
China and Germany together supply 66% of it. China pays 41.8% duty; Taiwan 9.7%.
customs district
destination
entry
rate provision · imports
1.8% enters free of duty; duty collected equals 23.61% of imports for consumption.