Polyacrylamide Gel Casting Dam from Japan
Precision-machined silicone dams used to form leak-proof seals during polyacrylamide gel polymerization in vertical electrophoresis setups like Bio-Rad Mini-PROTEAN. Exclusively for non-optical detection instruments. Falls under HTS 9027.90.54.00 as an essential accessory for chemical analysis apparatus.
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
• Provide gel cassette compatibility specs to confirm electrophoresis-specific design
• Test for silicone purity certification to meet lab chemical resistance standards
• Distinguish from general rubber parts (4016) via functional description