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.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If dispersed in nonaqueous media for paint manufacturing
Chapter notes exclude such preparations from Chapter 32 headings like 3214, directing to paints and varnishes.
If primarily adhesives rather than mastics
Prepared glues and adhesives fall under Chapter 35 if not specifically mastics for puttying.
If bituminous or asphalt-based variants
Chapter note (c) explicitly excludes mastics of asphalt or bituminous substances from this chapter.
Not sure which classification is right?
Our AI classifier can analyze your specific product and recommend the correct HTS code with confidence.
Import Tips & Compliance
• Verify composition to ensure it qualifies as non-bituminous mastic, avoiding exclusion under chapter note (c)
• Provide safety data sheets (SDS) for VOC content to comply with EPA import regulations
• Label containers with curing time and application temperature to prevent customs reclassification as paint
Related Products under HTS 3214.10.00.20
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.
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.
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.