Acrylic Caulking Compound

A paintable latex-based mastic for sealing gaps in walls, windows, and doors in construction. It is categorized under HTS 3214.10.00.20 as a caulking compound mastic. This nonrefractory preparation is used for indoor and facade surfacing.

Import Duty Rates by Country of Origin

Origin CountryMFN RateCh.99 SurchargesTotal Effective Rate
🇨🇳China3.7%+35.0%38.7%
🇲🇽Mexico3.7%+10.0%13.7%
🇨🇦Canada3.7%+10.0%13.7%
🇩🇪Germany3.7%+10.0%13.7%
🇯🇵Japan3.7%+10.0%13.7%

Alternative Classifications

This product could be classified differently depending on its characteristics or intended use.

3214.90.50Lower: 38.25% vs 38.7%

If classified as nonrefractory surfacing for floors/ceilings

Painters' fillings or specific surfacing preps fall under other subheadings in 3214.

3506.99.00Lower: 37.1% vs 38.7%

If high adhesive content over mastic properties

Strongly adhesive preparations without putty characteristics go to Chapter 35.

3909Lower: 16.3% vs 38.7%

If imported as bulk polymers for compounding

Unmixed polymers classify under Chapter 39, not finished mastics.

Not sure which classification is right?

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Import Tips & Compliance

Ensure labeling meets ASTM C834 standards for flexibility and adhesion testing

Declare VOC levels accurately to comply with TSCA import notifications

Separate from painter's fillings to avoid blending with 3214.90 categories

Related Products under HTS 3214.10.00.20

Silicone-Based Glazier's Putty

A mastic compound used by glaziers to seal glass panes in window frames, providing waterproofing and adhesion. It falls under HTS 3214.10.00.20 as a glazier's putty, a non-refractory mastic for sealing purposes. This product is distinct from bituminous mastics excluded by chapter notes.

Polyurethane Grafting Putty

A resin cement mastic applied to seal grafts on trees or plants, promoting healing and preventing infection. Classified under HTS 3214.10.00.20 as grafting putty, a specialized mastic. It adheres to chapter provisions for nonrefractory surfacing and sealing compounds.

Butyl Rubber Resin Cement

A mastic used in roofing and siding applications for flexible sealing against weather. Falls under HTS 3214.10.00.20 as a resin cement mastic, excluded from bituminous types. Provides durable, non-hardening seals for building envelopes.

Painter's Non-Sag Mastic Filler

A thick mastic for filling cracks and joints in drywall before painting, remaining in place without sagging. Classified in HTS 3214.10.00.20 as other mastics akin to painters' fillings. Used for indoor wall and ceiling surfacing preparations.

Marine-Grade Caulking Mastic

UV-resistant mastic for sealing boat decks and hull joints, flexible in saltwater environments. Under HTS 3214.10.00.20 as caulking compound mastic. Nonrefractory formula for surfacing marine structures.

Oakum-Impregnated Grafting Mastic

Tar-impregnated fiber mastic for tree grafting wounds, providing breathable seal. HTS 3214.10.00.20 covers this as grafting putty mastic. Ensures chapter compliance by being non-bituminous.