Rubber-Based Silicone Caulking Compound
A sealant made from synthetic rubber polymers designed for sealing gaps in construction and bathroom applications. It falls under HTS 3214.90.10.00 as a caulking compound based on rubber, used for weatherproofing joints without refractory properties. This non-hardening mastic provides flexibility and adhesion on various surfaces.
Import Duty Rates by Country of Origin
| Origin Country | MFN Rate | Ch.99 Surcharges | Total Effective Rate |
|---|---|---|---|
| šØš³China | Free | +35.0% | 35% |
| š²š½Mexico | Free | +10.0% | 10% |
| šØš¦Canada | Free | +10.0% | 10% |
| š©šŖGermany | Free | +10.0% | 10% |
| šÆšµJapan | Free | +10.0% | 10% |
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If adhesive-strength focused rather than mastic sealant
Prepared glues and adhesives based on polymers may classify under Chapter 35 if primarily for bonding rather than filling or caulking.
If imported in bulk as uncured rubber compound, not finished mastic
Unvulcanized rubber plates or sheets fall under Chapter 40 if not put up as ready-to-use mastics.
If primarily glaziers' putty for window glazing
Specific glaziers' putty based on rubber shifts to the principal heading within 3214.
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Import Tips & Compliance
ā¢ Verify rubber content exceeds 50% by weight via lab testing for accurate classification under 3214.90.10.00
ā¢ Include Safety Data Sheets (SDS) and VOC compliance certifications for CBP clearance
ā¢ Avoid misclassification as paints by ensuring it's not dispersed in nonaqueous media per Chapter 32 notes
Related Products under HTS 3214.90.10.00
Butyl Rubber Glaziers' Putty
A non-hardening putty formulated with butyl rubber for bedding glass in window frames. Classified under HTS 3214.90.10.00 as glaziers' putty based on rubber, it provides long-term sealing against air and moisture. Ideal for traditional glazing applications in construction.
EPDM Rubber Grafting Putty
A flexible mastic used in horticulture to seal tree grafts, made from EPDM rubber for waterproofing. It qualifies for HTS 3214.90.10.00 as grafting putty based on rubber, offering elasticity to accommodate plant growth. Prevents moisture ingress and disease in nursery operations.
Neoprene Resin Cement for Flooring
A rubber-based cement used for bonding floor tiles and surfacing indoor floors. Falls under HTS 3214.90.10.00 as a nonrefractory surfacing preparation based on rubber (neoprene polychloroprene). Provides durable, flexible adhesion in high-traffic areas.
SBR Latex Painters' Filling Compound
A water-based filler putty with styrene-butadiene rubber (SBR) latex for smoothing drywall imperfections before painting. Classified in HTS 3214.90.10.00 as painters' fillings based on rubber, it sands easily and accepts paint finishes. Used in interior wall preparation.
Nitrile Rubber Caulking for Facades
Weather-resistant caulking compound using nitrile rubber for exterior building facades. HTS 3214.90.10.00 covers it as a mastic based on rubber for nonrefractory surfacing of facades. Offers oil and UV resistance for long-term joint sealing.
Polyisoprene Grafting Mastic Tape
Self-fusing rubber tape made from polyisoprene for sealing plant grafts and wounds. As a rubber-based grafting putty in tape form, it fits HTS 3214.90.10.00 for flexible horticultural mastics. Stretches to create airtight barriers.