Insulation Vapor Barrier Film from Japan
Polyethylene film laminated to spunbond polypropylene for building insulation, 0.95 kg/m². Classed in 3921.90.19.50 as other combined under weight. Blocks moisture in walls.
Duty Rate — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Section 301 (forced labor) — Japan (col1 rate < 12.5 percent): MFN < 12.5% → total duty capped at 12.5%
Import Tips
• Perm rating tests prove vapor barrier function
• Building code compliance docs (ASTM E1745) aid clearance
• Rolls for construction; finished panels to 3925.90