3506 - Prepared glues and other prepared adhesives, not elsewhere specified or included; products suitable for use as glues or adhesives, put up for retail sale as glues or adhesives, not exceeding a net weight of 1 kg:

Heading 3506 encompasses a broad range of prepared glues and adhesives that do not fall into more specific classifications. This includes formulated bonding agents, whether in liquid, paste, or solid form, designed for joining materials. Importantly, it also covers products specifically packaged and marketed for retail sale as glues or adhesives, provided their individual net weight does not exceed 1 kilogram. These are typically consumer-grade adhesives found in stationery, craft, or DIY sections.

This heading is distinguished from other chemical products by its explicit focus on adhesion. While Chapter 35 generally deals with albuminoidal substances, modified starches, glues, and enzymes, heading 3506 specifically isolates the application of glues and adhesives that are not classified elsewhere based on their specific chemical composition or raw materials (e.g., casein glues under 3503). Unlike raw materials or simple chemical compounds, these are *prepared* products ready for use.

Heading 3506 is further subdivided to differentiate between retail-packaged adhesives and other forms. Subheading 3506.10 specifically addresses products sold in retail packaging for direct consumer use, as long as they meet the weight limitation. The residual category, often referred to as "Other," covers all other prepared glues and adhesives not meeting these specific retail packaging criteria, including industrial-grade adhesives, bulk shipments, or those not specifically put up for retail sale.