Poly(Vinyl Butyral) Safety Glass Interlayer Film
Transparent noncellular film made of poly(vinyl butyral) used as the interlayer in laminated safety glass for automotive windshields and architectural glazing. It adheres to glass layers under heat and pressure, absorbing impact energy to prevent shattering. Classified under HTS 3920.91.00.00 as it is a plate, sheet, film of poly(vinyl butyral) that is noncellular and not reinforced or combined with other materials.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If copolymer or blend where PVB monomer <95%
Falls to 'Other' plastics if not meeting pure poly(vinyl butyral) predominance per subheading note (a)(4).
If flexible and surface-worked for specific use
Cellular or worked sheets go to Chapter 39 heading 3921, separate from plain noncellular films.
If imported as complete laminated safety glass
Finished laminated glass with PVB interlayer classified under glass Chapter 70, not plastic film.
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Import Tips & Compliance
• Verify polymer composition meets 95% poly(vinyl butyral) content per subheading note (a)(1) via lab testing certificates
• Provide safety data sheets confirming noncellular structure and absence of reinforcement or lamination
• Avoid misclassification as finished glass by importing film in rolls or sheets prior to assembly
Related Products under HTS 3920.91.00.00
PVB Acoustic Laminated Glass Interlayer Sheet
Specialized poly(vinyl butyral) film sheet designed for noise-reduction in acoustic laminated glass used in vehicles and buildings. Its noncellular structure provides sound dampening when sandwiched between glass panes. Fits HTS 3920.91.00.00 as unreinforced PVB film, not the assembled glass product.
PVB Head-Up Display (HUD) Interlayer Film
Poly(vinyl butyral) film engineered for head-up display windshields, featuring optical clarity for projecting information. Noncellular and unsupported, it bonds glass layers in automotive applications. HTS 3920.91.00.00 covers this pure PVB film before lamination.
Industrial PVB Casting Film for Lamination
High-quality poly(vinyl butyral) casting film supplied in rolls for industrial lamination processes in safety glass production. Noncellular and not combined with other materials, ideal for custom glass fabrication. Classified in 3920.91.00.00 due to its specific PVB polymer composition.
PVB Solar Panel Encapsulant Film
Poly(vinyl butyral) film used to encapsulate solar photovoltaic cells, providing electrical insulation and protection in modules. Noncellular sheets adhere to glass and cells during lamination. HTS 3920.91.00.00 applies to the unsupported PVB film itself.
Marine Grade PVB Laminated Glass Interlayer
Poly(vinyl butyral) film formulated for marine applications like boat windshields, offering moisture resistance and impact safety. Non-reinforced sheets for lamination between glass. Fits 3920.91.00.00 as pure PVB noncellular film.
PVB Bullet-Resistant Glass Interlayer Film
Thick poly(vinyl butyral) film sheets for multi-layer bulletproof glass in security vehicles and buildings. Noncellular PVB absorbs ballistic energy. HTS 3920.91.00.00 for the standalone film.