Silicone Caulking Compound
A flexible, waterproof sealant made from silicone polymers used for sealing gaps around windows, doors, and bathtubs in construction and home improvement. It falls under HTS 3214.10.00.10 as a caulking compound, specifically classified among mastics for its mastic-like properties in joint sealing. This product provides adhesion and elasticity without hardening fully.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If put up in retail packaging under 1 kg for consumer use
Retail-packaged painters' fillings or nonrefractory surfacing preparations shift to heading 3212.
If primarily adhesives based on polymers for prepared glues
Adhesive-focused preparations fall under Chapter 35 for glues and adhesives, not mastics.
If imported as bulk synthetic resin in unmixed form
Uncompounded silicone resins are classified in Chapter 39 under plastics, not finished caulking.
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Import Tips & Compliance
• Verify VOC content compliance with EPA regulations for US imports to avoid customs holds
• Include Safety Data Sheets (SDS) and exact chemical composition in documentation for classification verification
Related Products under HTS 3214.10.00.10
High-Performance MS Polymer Caulk
Modified silane (MS) polymer hybrid caulking for demanding joints, combining silicone and polyurethane benefits. As a caulking mastic, it fits HTS 3214.10.00.10 for construction gap sealing. UV-stable and isocyanate-free.
Acrylic Latex Caulking Sealant
Water-based acrylic latex compound designed for interior sealing of gaps in drywall, trim, and woodwork, paintable after drying. Classified under HTS 3214.10.00.10 as a caulking compound due to its mastic properties for non-structural joints. It offers easy cleanup and flexibility for home repairs.
Polyurethane Construction Caulk
High-performance polyurethane-based caulking for exterior expansion joints in buildings, offering UV resistance and high elasticity. It is a mastic-type caulking compound under HTS 3214.10.00.10, distinct from glues due to its gap-filling application. Ideal for commercial construction sealing.
Butyl Rubber Caulking Compound
Synthetic rubber-based caulk for roofing and siding applications, providing excellent weatherproofing and low permeability. Falls under HTS 3214.10.00.10 as a caulking mastic, not a pure rubber product due to its compounded mastic form. Used in industrial and residential sealing.
Clear Silicone Kitchen & Bath Caulk
Transparent silicone caulking compound for sanitary sealing around sinks, showers, and countertops, mildew-resistant. Classified in HTS 3214.10.00.10 for its role as a flexible caulking mastic in wet areas. Dries to a rubber-like seal without cracking.
Paintable Acrylic Caulking for Trim
Low-odor, paintable acrylic latex caulk for baseboards, crown molding, and interior trim gaps. HTS 3214.10.00.10 covers it as a caulking compound mastic for non-structural filling. Allows seamless finishing after painting.