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HSChapter 70
U.S. imports of chemically bonded glass mats (HS 701915) totaled $6.5M in April 2026, traded with 16 countries.
Last updated: April 2026 dataChemically bonded glass mats — produced by binding randomly oriented glass fibers with resin or binder systems — are a staple reinforcement in roofing shingles, gypsum wallboard facings, and boat hull laminates. All imports enter under a single tariff line, 7019150000. Canada leads US supply, reflecting integrated North American building-products supply chains, with China and Mexico also significant sources.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
A manufacturer's product data sheet or process certification identifying the binder system (e.g., urea-formaldehyde, acrylic, or polyester resin) is the most reliable supporting document. Customs may also request a technical specification sheet showing tensile strength and binder content, as these parameters are characteristic of chemically bonded construction.
Canada's leadership reflects tightly integrated North American building-products manufacturing, where Canadian producers supply US roofing and wallboard manufacturers under just-in-time logistics. USMCA preferential treatment further supports cross-border sourcing economics compared with suppliers from outside the free-trade zone.
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Monthly import values over time