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HSChapter 70
U.S. imports of mechanically bonded glass mats (HS 701914) totaled $1.6M in April 2026, traded with 15 countries.
Importers of Mechanically Bonded Glass Mats paid $407K in duties in April 2026 — an effective duty rate of 26% on $1.6M in dutiable value, based on actual customs collections rather than the published tariff schedule.
Last updated: April 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.
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.
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Monthly import values over time
HS10 import codes under this HS6 parent. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Import Value | Effective Tariff % | Duty Collected |
|---|---|---|---|---|
| 7019140000 | GLASS MATS, MECHANICALLY BONDED | $1.6M | 25.63% | $407K |
GLASS MATS, MECHANICALLY BONDED
HS10 export codes under this HS6 parent. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 7019140000 | GLASS MATS, MECHANICALLY BONDED | $1.0M |
GLASS MATS, MECHANICALLY BONDED
108.2K kg
GLASS ARTICL. FOR CONVEYANCE/PACKING OF GOODS,NESO
HS 701090
TOUGHNED SAFETY GLASS, NOT FOR VEHICULAR USE
HS 700719
OTHER GLASSWARE, NOT LEAD CRYSTAL, NESOI
HS 701399
GLASS WOOL AND ARTICLES OF GLASS WOOL
HS 701980
REAR-VIEW MIRRORS FOR VEHICLES
HS 700910
GLASS MIRRORS, FRAMED, EXC REARVIEW
HS 700992
| State | Imports | Exports | Balance |
|---|---|---|---|
| California | $391K | $48K | -$343K |
| Georgia | $323K | $21K | -$302K |
| Michigan | $2K | $274K | +$272K |
| Port | Imports | Exports | Balance |
|---|---|---|---|
| LAREDO, TX | -- | $560K | +$560K |
| SAVANNAH, GA | $431K | -- | -$431K |
| HOUSTON, TX | $149K | $137K | -$12K |