3214 - Glaziers' putty, grafting putty, resin cements, caulking compounds and other mastics; painters' fillings; nonrefractory surfacing preparations for facades, indoor walls, floors, ceilings or the like:

This HTS category, encompassing HTS Code 3214, covers a range of specialized sealing, filling, and surfacing preparations. Primarily, it includes glaziers' putty, used for setting glass panes, and grafting putty, employed in horticulture for sealing plant wounds. Resin cements, caulking compounds, and various mastics are also classified here, serving to seal joints, gaps, and cracks in construction and repair applications. Additionally, the category includes painters' fillings, designed to smooth and prepare surfaces for painting, and non-refractory surfacing preparations for interior and exterior walls, floors, and ceilings.

Distinguishing this category from its siblings at the Section VI level, it focuses specifically on these semi-liquid or pliable bonding and filling agents rather than raw materials like basic pigments (Chapter 3206), tanning or dyeing extracts (Chapter 3201), or finished paints and varnishes (Chapter 3208-3210). While Chapter 32 broadly deals with products of the chemical industry related to color and surface treatment, HTS 3214 carves out a niche for products whose primary function is sealing, filling, or creating a seamless surfacing layer, rather than providing color or protective coatings.

Within HTS 3214, the subcategories further refine classification based on product type and application. Subheading 3214.10.00 specifically enumerates glaziers' putty, grafting putty, resin cements, caulking compounds, other mastics, and painters' fillings. The remaining goods, which are non-refractory surfacing preparations not covered by 3214.10.00, are grouped under the broader "Other" heading, 3214.90, which would then be further divided by specific product characteristics or formulations.