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.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If bulk MS polymer resins
Synthetic rubber-like polymers in primary form under Chapter 39.
If packaged as glazier's putty
Putty forms in retail go to 3212 per heading definition.
If synthetic latex concentrate
Unvulcanized polymers classify in Chapter 40.
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Import Tips & Compliance
• Provide polymer composition breakdown to confirm non-excluded Chapter 32 status
• Hazardous material shipping papers required for moisture-curing types
• Avoid classifying as glue if primary use is caulking per end-use
Related Products under HTS 3214.10.00.10
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.
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.