Basalt Fiber Acoustic Insulation Boards from Canada
Boards spun from melted basalt rock (similar to rock wool) for soundproofing theaters and home theaters. Natural mineral fibers provide excellent acoustic absorption without chemical binders. Classified as rock wool equivalent under HTS 6806.10.00.10 for acoustical pads.
Duty Rate — Canada → United States
13.9%
Rate breakdown
9903.05.2910%Section 301 (forced labor) — additional 10% ad valorem on products of Canada
Import Tips
• Include fiber diameter specs (4-10 microns typical) to confirm mineral wool classification
• Test for shot content (<10%) as high shot may trigger quality rejections
• Label 'non-combustible' per ASTM E136 for fire marshal approvals